HomeMy WebLinkAboutStaff Report 6996
City of Palo Alto (ID # 6996)
City Council Staff Report
Report Type: Action Items Meeting Date: 9/12/2016
City of Palo Alto Page 1
Summary Title: Professorville Historic District Design Guidelines
Title: PUBLIC HEARING: Adoption of a Resolution Adopting the Professorville
Historic District Design Guidelines. The Guidelines will be Used by the
Historic Resources Board (HRB) and City Staff When Reviewing Development
Applications to Evaluate the Compatibility of Proposed Changes With the
Historic Character of Professorville. The HRB Recommends Council Approval
of the Guidelines. The Project is Exempt From the Provisions of CEQA per
Class 8 Categorical Exemption, Which Applies to Actions Taken by Regulatory
Agencies, as Authorized by State or Local Ordinance, to Assure the
Maintenance, Restoration, Enhancement, or Protection of the Environment
Where the Regulatory Process Involves Procedures for Protection of the
Environment
From: City Manager
Lead Department: Planning and Community Environment
Recommendation:
Staff recommends that Council approve the attached Resolution (Attachment A) to adopt the
Professorville Historic District Design Guidelines.
Executive Summary:
The Professorville Historic District Design Guidelines (“Guidelines”) will provide a tool for the
community to evaluate the compatibility of proposed development with the historic character
of Professorville. Development of the Guidelines involved extensive input by property owners,
community members, an advisory panel, and the Historic Resources Board (HRB). Public input
was provided via email, at community workshops, and at HRB meetings. The Guidelines project
was awarded a $37,000 grant from the State Office of Historic Preservation (OHP), which is
reimbursable upon OHP’s receipt of the final Guidelines, provided they are received by
September 30, 2016. The Guidelines are included as Attachment B to this report and are
accessible on the City’s Professorville Design Guidelines webpage at
http://www.cityofpaloalto.org/gov/depts/pln/advance/professorville.asp.
City of Palo Alto Page 2
Background:
The Professorville Historic District includes approximately 65 acres and 186 residential parcels
(including several parcels containing more than one residence). The majority of residences
within the district were constructed during the first wave of the city’s development, which took
place between the 1890s and the 1930s. According to the National Register of Historic Places
inventory nomination form, Professorville “reflects the unique background of the area’s origins
and its early ties to the founding of both the University and Palo Alto itself. As such, the
Professorville Historic District creates a strong sense of place and time expressive of Palo Alto’s
intrinsic character and heritage.”1
The Professorville Historic District was listed in the National Register of Historic Places in 1979.
Also at that time, the City Council adopted the Professorville Historic District to the City’s
Historic Inventory. In 1993, the City Council expanded the boundary of the locally designated
district east to Embarcadero Road in order to encompass additional properties that contribute
to the historic character of the neighborhood.
Project Initiation
On March 14, 2011, the City Council directed planning staff to work with the HRB, Professorville
residents, and other interested community members to develop design guidelines for all
projects in Professorville, including compatibility criteria for new construction, additions, and
remodels in the district.2
Between 2011 and 2013, HRB members and staff conducted community workshops and
meetings, during which design principles and approaches were discussed and a preliminary set
of draft guidelines were prepared and posted as a draft document on the City’s website. The
preliminary draft guidelines, however, were not adopted in favor of a more comprehensive
design and robust outreach approach made possible through federal and state grant funding.
In 2015, the City Council accepted a Certified Local Government (CLG) grant of federal funds
from OHP to complete a bound volume of illustrated architectural guidelines incorporating the
community’s design principles, input by homeowners, and the Secretary of the Interior’s
Standards for Rehabilitation.3 According to the CLG Grant agreement between the City and
OHP, the funds are reimbursable to the City upon OHP’s receipt of the final work product by
September 30, 2016. Staff selected the firm of Page & Turnbull as the consultant to develop
and produce the final guidelines.
HRB Review and Outreach, Current Guidelines
1 Professorville Historic District National Register of Historic Places Inventory Nomination Form, 1979, page 8-2.
2 See March 14, 2011 City Council report at http://www.cityofpaloalto.org/civicax/filebank/documents/41050 and
meeting transcript at http://www.cityofpaloalto.org/civicax/filebank/documents/27061.
3 See August 17, 2015 City Council report at http://www.cityofpaloalto.org/civicax/filebank/documents/48441 and
action minutes at http://www.cityofpaloalto.org/civicax/filebank/documents/49226.
City of Palo Alto Page 3
At the HRB meetings of June 9, 2016 and July 28, 2016, the HRB reviewed the draft Guidelines,
received presentations from staff and the consultant, and accepted public testimony. HRB
members provided comments on the draft Guidelines, including recommendations for technical
revisions, updates, and additions to text and graphics, which staff and the consultant have
incorporated into the currently proposed final Guidelines. At the July 28, 2016 HRB meeting,
the HRB voted unanimously to recommend the City Council adopt the final revised Guidelines.4
The HRB’s efforts followed extensive research, fieldwork, and community input including:
A review of the National Register of Historic Places nomination form and other literature
relating to the historic architecture and landscape of Professorville;
A survey of the existing conditions of the neighborhood;
Walking tours by local historians;
Public workshops at which the participants (including homeowners who took part in
previous workshops) provided input on community design principles and the preferred
approaches to historic preservation.
The City staff convened an advisory panel comprised of local architects, historians, and a real
estate professional, who reviewed the administrative draft and provided comments. The
consultant incorporated the advisory panel’s comments, prepared a second draft of the
Guidelines and resubmitted to the City. Staff posted the second draft on the City’s
Professorville Design Guidelines webpage for public review and comment and held a second
public workshop, to discuss the draft and conduct interactive exercises with workshop
attendees.
Discussion:
The Guidelines are intended to allow for and manage development in Professorville while
preserving the qualities that are most important to the district’s historic character. The
Guidelines are not intended to prevent or slow down compatible development in the
neighborhood. Qualities that are important to the district’s historic character include the ways
in which homes stand on their own as examples of distinguished architecture, and also the
ways in which residences and appurtenant structures relate to one another within the context
of the wider neighborhood. The Guidelines take into account the following important
characteristics of Professorville:
Lot layout and pattern;
Massing and form of buildings and structures;
Material palette;
Architectural styles and character-defining features;
Landscape and streetscape.
4 See June 9, 2016 HRB report at https://www.cityofpaloalto.org/civicax/filebank/documents/52706 and meeting
transcript at http://www.cityofpaloalto.org/civicax/filebank/documents/53126.
City of Palo Alto Page 4
The Guidelines are designed to be applicable to all properties located within the City’s locally
designated district, which is inclusive of the National Register district.
How the Guidelines Will Be Used
The Guidelines will provide a tool for members of the community to evaluate the compatibility
of proposed development with the historic character of Professorville. For homeowners, the
Guidelines will provide advice on everything from ordinary maintenance and repair of existing
buildings to major new construction. Similarly, the Guidelines will provide architects and
designers with advice early in the design development process regarding the community’s
expectations of district compatibility, which can reduce the “guesswork” involved in designing
architecturally compatible improvements, additions, and new construction. The Guidelines will
also give the public a basis for understanding how decisions are made regarding the
appropriate treatment of properties in Professorville. In cases where proposed work is subject
to City review and approval, the Guidelines will provide the HRB and staff with specific criteria
for evaluating design compatibility.
The Guidelines use straightforward language and illustrations that are easy to understand to
describe the historic architectural character and characteristic features of Professorville, and to
make recommendations for the treatment of district properties in ways that are consistent with
the design principles and the Secretary of the Interior’s Standards for Rehabilitation. The
recommendations for treatment are organized into chapters based on common scopes of work
in Professorville, including: ordinary maintenance and repair; alterations and additions to older
residences (1890s-1930s); alterations and additions to newer residences (1930s-present); new
construction; and site improvements, landscape, and streetscape.
During the development of the Guidelines, several key issues were raised by HRB members and
community members. These key issues are discussed below.
Relationships to Codes and Application Review
The Guidelines do not include any changes to existing City codes or review procedures; nor do
the Guidelines preclude making changes to City codes or review procedures in the future. The
Guidelines are meant to be used in concert with the existing codes and review procedures, or
with updated codes and procedures that may be adopted in the future. In Professorville, every
exterior modification requiring a building permit is subject to review by the HRB, either through
a discretionary permit or through the HRB’s non-binding review authority for ministerial
building permits.5 Under existing codes and procedures, in cases where a development
application is subject to a discretionary approval (e.g. Single Family Individual Review), the
Guidelines may be used by the HRB and staff to interpret and clarify the existing Standards of
Review in the Municipal Code and the Secretary of the Interior’s Standards for Rehabilitation.
In cases where proposed exterior work requiring building permits is not subject to a
discretionary approval, but is subject to HRB review and non-binding recommendation under
5 Municipal Code Section 16.49.050.
City of Palo Alto Page 5
the current code, the HRB may use the Guidelines as a reference document when making non-
binding recommendations to homeowners. Prior to filing a development application,
homeowners, architects, and builders can use the Guidelines as a design tool early in the design
development process in order to inform preliminary designs.
Guidelines vs. Development Standards
Guidelines are suggestions that allow for case-by-case interpretation and decision making
based on several factors, including but not limited to preservation issues. Guidelines are a
starting point for a conversation about historically compatible development. They do not
provide answers in and of themselves. Development standards are generally more prescriptive
and literal, and they are less flexible in allowing interpretation and individual decision making.
Guidelines are proposed for Professorville instead of development standards in order to allow
for interpretation and flexibility in decision making, based on specific circumstances.
Traditional vs. Contemporary in New Construction
The Guidelines recognize that the significant historical character of Professorville includes a
combination of historic architectural styles that developed over a period of approximately four
decades (1890s-1930s). However, the existing mélange of historic architecture does not
necessarily mean Professorville can accommodate additional contemporary architectural styles
without any adverse effects occurring upon its character and its relationship to the historic
period. Newer development should be introduced carefully and with great forethought as to
how it relates to the historic architectural character of the district.
Variations in District Development Patterns
The Guidelines set forth that, while there are some predominant patterns of historical
development in Professorville, there are also historic variations and exceptions to the
predominant patterns, all of which contribute to the character of the district. Therefore, the
Guidelines avoid recommending “uniform” treatments or design solutions based on the
predominant historical patterns of development in Professorville, at the expense of secondary
historical patterns, variations, and exceptions from typical patterns, which may also provide
unique neighborhood character. Examples include variations in lot sizes, front yard setback
depths, front entry placements, and building heights. The Guidelines address these variations
in historical development patterns by providing “case-by-case” recommendations for
treatments based on specific circumstances, and by avoiding recommending uniform
treatments.
Feasibility and Practicality
The Guidelines acknowledge that, in order to be useful, the recommended treatments and
design solutions must be feasible and practical to implement. The Guidelines also acknowledge
that, in some cases, design solutions for improvements to historic residential properties are
affected by practical considerations, such as needs for off-street automobile parking and/or
energy efficiency. Therefore, the Guidelines emphasize case-by-case decision making based on
specific circumstances, and they include specific conditions and parameters for certain
City of Palo Alto Page 6
treatments that may not be recommended in most cases, but which may be appropriate for
unique situations, such as moving and lifting buildings, and adding substantial new additions to
existing smaller homes.
Contributors and Non-contributors
The Guidelines do not affect the previously adopted designations of contributing and non-
contributing structures to the district, which remain in effect. The Guidelines do apply equally
to all properties in the district, in order to encourage the preservation of historic contributors,
the rehabilitation and restoration of altered historic non-contributors, and the general
compatibility of properties constructed after the historic period. In making recommendations
for treatment, the Guidelines distinguish between properties constructed during the historic
period and those constructed later, because architectural styles and construction types
changed substantially after the 1930s.
Timeline:
The following table summarizes the project timeline, including previously completed activities
and activities to be completed.
Activity Date
Project “kick-off” postcard notices mailed to
Professorville property owners and residents*
December 15, 2015
Community Workshop #1 February 23, 2016
Draft guidelines posted on the City’s website
for review and comment by the general public
May 2, 2016
Community Workshop #2 May 26, 2016
HRB Public Hearing – Review and Comment June 9, 2016
HRB Public Hearing – Recommend Adoption July 28, 2016
City Council Hearing – Adoption September 12, 2016
Submittal of Final Guidelines to OHP in
accordance with CLG Grant Agreement
September 30, 2016 (or before)
*Additional separate postcard notices were mailed to all Professorville property owners and
residents prior to each outreach event.
Policy Implications:
No new or updated policies are proposed. Similarly, no changes in existing application review
City of Palo Alto Page 7
procedures or review standards are proposed. The Guidelines will be used as a design tool for
interpreting and applying the currently adopted Secretary of the Interior’s Standards for
Rehabilitation, which the Guidelines are based upon (as described above), and the existing
Standards of Review in the Historic Preservation Ordinance, which mandate that alterations
should not adversely affect the exterior architectural characteristics, nor the historical,
architectural or aesthetic value of buildings and sites in districts, nor the relationships of
buildings, in terms of harmony and appropriateness, with surroundings and neighborhood
structures.6
The Guidelines are consistent with and compatible with applicable elements of the Palo Alto
Comprehensive Plan and the Preservation Ordinance (Municipal Code Chapter 16.49), as
described in the attached Resolution (Attachment A).
Resource Impact:
No additional City resources will be needed to conduct application review or to provide pre-
application consultations using the Guidelines. The Guidelines are not anticipated to result in
any increase in the frequency or quantity of development applications submitted for review, or
to result in any increase in the time required for the HRB and/or City staff to review and process
applications. Currently, the HRB and City staff review development applications involving
historic properties for consistency with the Secretary of the Interior’s Standards for
Rehabilitation and the Standards of Review in the Historic Preservation Ordinance, as
applicable. Also, City staff currently provides consultation on historic preservation matters to
the general public on a regular basis. These current activities would continue to occur, and
would be facilitated and possibly expedited by adoption and implementation of the Guidelines.
According to the CLG Grant agreement between the City and OHP, the $37,000 in CLG Grant
funds are reimbursable to the City upon OHP’s receipt of the final work product by September
30, 2016. If OHP does not receive the completed Guidelines transmitted from the City by
September 30, 2016, OHP can withhold some or all of the $37,000 in CLG Grant funding.
Currently, project funding is available to make minor changes only which may be required prior
to September 30, 2016, such as errata corrections (if any). Any substantive changes to the
Guidelines would require additional funding and time in order to be completed. Previously,
project funding was expended to develop the draft Guidelines, as well as to complete several
rounds of revisions to the draft Guidelines, in response to comments received from
homeowners, community members, and HRB members.
Environmental Review:
The subject project has been assessed in accordance with the authority and criteria contained
in CEQA, the State CEQA Guidelines, and the environmental regulations of the City. Specifically,
the project is exempt from the provisions of CEQA per Class 8 Categorical Exemption, which
applies to actions taken by regulatory agencies, as authorized by state or local ordinance, to
6 Muncipal Code Section 16.49.050 (b).
City of Palo Alto Page 8
assure the maintenance, restoration, enhancement, or protection of the environment where
the regulatory process involves procedures for protection of the environment.7
Attachments:
Attachment A: 0131545 RESO adoption of professorville design guidelines (PDF)
Attachment B: Professorville Historic District Design Guidelines (PDF)
Attachment C: Public correspondence to Council (PDF)
7 CEQA Guidelines Section 15308.
NOT YET APPROVED
160822 jb 0131545 1
Resolution No. ____
Resolution of the Council of the City of Palo Alto Adopting
The Professorville Historic District Design Guidelines
R E C I T A L S
A. On March 14, 2011, the City Council directed planning staff to work with the Historic
Resources Board, Professorville residents, and other interested community members to develop
design guidelines for all projects in Professorville, including compatibility criteria for new
construction, additions, and remodels in the district.
B. On August 17, 2015, the City Council accepted a $37,000 Grant from the California
Office of Historic Preservation and adopted a related Budget Amendment Ordinance for completion
of the Guidelines.
C. On July 28, 2016, the Historic Resources Board reviewed the draft Guidelines, heard
public testimony, provided comments to staff, and recommended the City Council adopt the final
revised Guidelines.
D. Upon consideration of said recommendation after duly noticed public hearing on
September 12, 2016, the Council reviewed the Guidelines and made the following findings:
1. The Guidelines are consistent and compatible with applicable elements of the Palo
Alto Comprehensive Plan, including:
POLICY L-12: Preserve the character of residential neighborhoods by encouraging new or
remodeled structures to be compatible with the neighborhood and adjacent structures.
POLICY L-48: Promote high quality, creative design and site planning that is compatible
with surrounding development and public spaces.
PROGRAM L-49: In areas of the City having a historic or consistent design character, design
new development to maintain and support the existing character.
POLICY L-51: Encourage public and private upkeep and preservation of resources that have
historic merit, including residences listed in the Historic Inventory.
PROGRAM L-58: For proposed exterior alterations or additions to designated Historic
Landmarks, require design review findings that the proposed changes are in compliance with the
Secretary of the Interior Standards for Rehabilitation.
POLICY L-58: Promote adaptive reuse of old buildings.
2. The Guidelines are consistent and compatible with the purpose of the Historic
Preservation Ordinance (Municipal Code Chapter 16.49), including: Designate, preserve, protect,
NOT YET APPROVED
160822 jb 0131545 2
enhance and perpetuate those historic structures, districts and neighborhoods which contribute to the
cultural and aesthetic heritage of Palo Alto; Stablize and improve the economic value of certain historic
structures, districts and neighborhoods; Develop and maintain appropriate settings for such
structures.
3. The Guidelines are consistent and compatible with the Standards of Review contained
in the Historic Preservation Ordinance (Municipal Code Chapter 16.49), including: In historic districts,
the proposed alterations should not adversely affect the exterior architectural characteristics nor the
historical, architectural or aesthetic value of the building and its site; or the relationship of the
building, in terms of harmony and appropriateness, with its surroundings, including neighborhood
structures.
4. The Guidelines are consistent and compatible with the Secretary of the Interior’s
Standards for Rehabilitation, as follows:
1. A property shall be used for its historic purpose or be placed in a new use that
requires minimal change to the defining characteristics of the building and its site and environment.
2. The historic character of a property shall be retained and preserved. The removal of
historic materials or alteration of features and spaces that characterize a property shall be avoided.
3. Each property shall be recognized as a physical record of its time, place, and use.
Changes that create a false sense of historical development, such as adding conjectural features or
architectural elements from other buildings, shall not be undertaken.
4. Most properties change over time; those changes that have acquired historic
significance in their own right shall be retained and preserved.
5. Distinctive features, finishes, and construction techniques or examples of
craftsmanship that characterize a historic property shall be preserved.
6. Deteriorated historic features shall be repaired rather than replaced. Where the
severity of deterioration requires replacement of a distinctive feature, the new feature shall match the
old in design, color, texture, and other visual qualities and, where possible, materials. Replacement of
missing features shall be substantiated by documentary, physical, or pictorial evidence.
7. Chemical or physical treatments, such as sandblasting, that cause damage to historic
materials shall not be used. The surface cleaning of structures, if appropriate, shall be undertaken
using the gentlest means possible.
8. Significant archeological resources affected by a project shall be protected and
preserved. If such resources must be disturbed, mitigation measures shall be undertaken.
9. New additions, exterior alterations, or related new construction shall not destroy
historic materials that characterize the property. The new work shall be differentiated from the old
NOT YET APPROVED
160822 jb 0131545 3
and shall be compatible with the massing, size, scale, and architectural features to protect the historic
integrity of the property and its environment.
10. New additions and adjacent or related new construction shall be undertaken in such a
manner that if removed in the future, the essential form and integrity of the historic property and its
environment would be unimpaired.
SECTION 2. The City Council hereby adopts the Professorville Historic District Design
Guidelines, which are attached as Exhibit A.
SECTION 3. CEQA. In conformance with the California Environmental Quality Act
(CEQA), the subject project has been assessed in accordance with the authority and criteria contained
in CEQA, the State CEQA Guidelines, and the environmental regulations of the City. Specifically, the
project is exempt from the provisions of CEQA per Class 8 Categorical Exemption, which applies to
actions taken by regulatory agencies, as authorized by state or local ordinance, to assure the
maintenance, restoration, enhancement, or protection of the environment where the regulatory
process involves procedures for protection of the environment.
INTRODUCED AND PASSED:
AYES:
NOES:
ABSENT:
ABSTENTIONS:
ATTEST:
City Clerk Mayor
APPROVED AS TO FORM: APPROVED:
__________________________ ____________________________
Senior Assistant City Attorney Director of Planning and Community
Environment
Professorville Historic District
Design Guidelines
Palo Alto, California
August 2016
Revised Public Review Draft
Prepared by:
3
Professorville Historic District
Design Guidelines
Palo Alto, California
August 2016
Revised Public Review Draft
Prepared by:
Acknowledgments
City Council
Patrick Burt, Mayor
Gregory Scharff, Vice Mayor
Marc Berman
Tom DuBois
Eric Filseth
Karen Holman
Liz Kniss
Greg Schmid
Cory Wolbach
Historic Resources Board
Martin Bernstein
David Bower
Beth Bunnenberg
Patricia Di Cicco
Roger Kohler
Michael Makinen
Margaret Wimmer
City Sta Advisory Panel
Martin Bernstein, Historic Resources
Board/Architect
David Bower, Historic Resources Board/
Builder (retired)
Laura Jones, Director of Heritage
Services, Stanford University
Lee Lippert, Palo Alto Stanford Heritage/
Architect
Steve Pierce, Silicon Valley Association of
Realtors
City Sta
Hillary Gitelman, Director of Planning and
Community Environment
Amy French, Chief Planning Official
Matthew Weintraub, Planner
Dave Dockter, Planning Arborist
Special Acknowledgments to:
Professorville Homeowners and Residents
Dennis Backlund, City of Palo Alto Planner
(retired)
Prepared by
Page & Turnbull, Inc.
417 Montgomery Street, 8th Floor
San Francisco, California 94101
www.page-turnbull.com
Contents
1. INTRODUCTION 9
Project Background 9
The Professorville Historic District 10
Purpose of the Design Guidelines 13
How to Use the Guidelines 16
Methodology for Developing the Guidelines 19
Secretary of the Interior’s Standards for Rehabilitation 21
Frequently Asked Questions (FAQ) 23
2. PROFESSORVILLE HISTORY AND CHARACTER 29
Brief History of Professorville 29
General Description of Current Conditions 33
3. GUIDELINES FOR MAINTAINING, REPAIRING, AND REPLACING HISTORIC MATERIALS 53
4. GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT (C. 1890-1930S) 71
5. GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT (1930S-PRESENT) 87
6. GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 97
7. GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, ACCESSORY BUILDINGS, LANDSCAPE, AND
STREETSCAPE 113
APPENDIX A: GLOSSARY OF TERMS 131
APPENDIX B: PROFESSORVILLE PROPERTY DATA 135
INDEX 157
Introduction
9INTRODUCTION
The Professorville Historic District Design Guidelines have been prepared to serve as
a planning tool for residents and property owners in the Professorville Historic District,
which is listed to the National Register of Historic Places and the City of Palo Alto’s
Historic Inventory. Among the earliest areas to develop in Palo Alto, Professorville is a
residential neighborhood with a clear historic character, distinguished by its particular
mixture of turn-of-the-twentieth-century architectural styles, consistent streetscape
patterns, and verdant tree canopy.
Yet, Professorville remains a living piece of Palo Alto’s urban fabric. Older residences
require periodic maintenance to remain comfortable and in good condition. In addition,
alterations may be desired in order to adapt the neighborhood’s early homes to
contemporary tastes and lifestyles. In some cases, new residences have been constructed
next to earlier buildings, and others may be in the future. All livable neighborhoods
change over time, and Professorville is no exception.
Project Background
In 2011, the Palo Alto City Council directed the City’s Historic Resources Board
and planning staff to work with the community to develop design guidelines for the
Professorville Historic District, including guidance for new construction. Between 2011
1. Introduction
10 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
and 2013, Board members and staff conducted community workshops and meetings,
during which design principles and approaches were discussed and preliminary
guidelines were drafted. In 2015, the City Council accepted a Certified Local Government
grant from the California Office of Historic Preservation to complete a bound volume
of illustrated architectural guidelines incorporating the community’s design principles,
input by homeowners, and the Secretary of the Interior’s Standards for Rehabilitation
(listed at the end of this chapter). The City selected the firm of Page & Turnbull as the
consultant to develop and produce the final guidelines.
e Professorville Historic District
The Professorville Historic District is located across approximately 65 acres and several
residential suburban city blocks southeast of downtown Palo Alto. Most of the homes
within the district face onto one of ten city streets that form a regular grid pattern: Emerson
Street, Ramona Street, Bryant Street, Waverley Street, Cowper Street, Addison Avenue,
Lincoln Avenue, Kingsley Avenue, Melville Avenue, and Embarcadero Road. The majority
of residences within the district date to the first wave of the city’s development, which
took place between c. 1893 and the 1930s. The western half of the district contains
many of the neighborhood’s oldest homes and is characterized by tightly spaced lots.
The eastern half of the district contains several large, early homes located on expansive
properties, but also a number of more recent residences that were constructed after the
lots were subdivided. Additional information about the district’s historic development
and architectural character is found in Chapter 2.
Professorville contains a mixture of house sizes, styles, and forms. This variety is one of the neighborhood’s defining characteristics.
11INTRODUCTION
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Feet
LEGEND
Local Historic District
National Register Historic District
Professorville Boundaries
Palo Alto
Professorville
The locally designated
Professorville Historic
District expanded the
boundaries of the earlier
National Register district.
See Appendix B for a map
that includes individual
property addresses.
12 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
The Professorville Historic District was listed in the National Register of Historic Places
in 1979. Administered by the National Park Service, the National Register is the nation’s
comprehensive inventory of historic resources. A primary benefit of Professorville’s
National Register designation is the formal recognition that the neighborhood is one
of the most significant places in the context of Palo Alto’s historic development. The
Professorville Historic District’s nomination to the National Register identified the
district as bounded roughly by Emerson Street, Addison Avenue, Cowper Street, and
Embarcadero Road. One hundred and five residences were found to be contributing
properties to the National Register district, based on construction dates between the
1890s and 1929. As such, they convey the initial wave of construction that filled out
much of the neighborhood with stately homes. According to the National Register
district nomination, Professorville “reflects the unique background of the area’s origins
and its early ties to the founding of both the University and Palo Alto itself. As such, the
Professorville Historic District creates a strong sense of place and time expressive of
Palo Alto’s intrinsic character and heritage.”1
Chapter 16.49 of Palo Alto’s Municipal Code allows the City to designate local historic
districts. The City of Palo Alto adopted the Professorville Historic District to the City’s
Historic Inventory in 1979. In 1993, the locally designated district’s boundaries were
expanded east to Embarcadero Road, beyond the earlier identified district, encompassing
additional properties that contribute to the historic character of the neighborhood. The
City’s expanded district contains nearly 200 residential properties. These guidelines are
applicable to all properties located within the City’s expanded local district, which is
inclusive of the National Register district.
1 Professorville Historic District National Register Nomination, 1979, page 8-2.
13INTRODUCTION
Purpose of the Design Guidelines
The design guidelines are a tool so that members of the community can evaluate the
compatibility of proposed development with the historic character of Professorville. For
homeowners, the guidelines provide advice on everything from ordinary maintenance
and repair of existing buildings to major new construction. Similarly, the guidelines
provide architects and designers with advice early in the design development process
regarding the community’s expectations of district compatibility, which can reduce the
“guesswork” that can be involved in designing architecturally compatible improvements,
additions, and new construction. The guidelines also give the general public a basis
for understanding how decisions are made regarding the appropriate treatment of
properties in the Professorville Historic District. In cases where proposed work is subject
to City review and approval, the guidelines provide staff and the City of Palo Alto Historic
Resources Board with specific criteria for evaluating design compatibility.
The purpose of these guidelines is not to prevent change from happening in Professorville.
Rather, the guidelines are meant to manage change while preserving the qualities
that are most important to the district’s historic character. These qualities include how
homes stand on their own as examples of distinguished architecture, and also how the
residences relate to one another within the context of a wider, multifaceted residential
neighborhood.
14 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
The guidelines take into account the following important characteristics of
Professorville:
• Lot layout and pattern;
• Massing and form of buildings and structures;
• Material palette;
• Architectural styles and character-defining features;
• Landscape and streetscape.
Recognizing that the district’s historic character is conveyed by physical elements,
natural features, and spatial relationships, this document identifies important principles
that should inform future change. These principles were developed from prevalent
philosophies in the historic preservation field—particularly distilled in the Secretary of the
Interior’s Standards for the Treatment of Historic Properties—as well as from community
and City staff input. These principles have led to design guidelines that should be
consulted to inform any substantial changes that are proposed for properties within
Professorville in the future. The ultimate goal of this document is to ensure that individual
residences and the Professorville Historic District as a whole continue to express their
significant and identifiable character within the neighborhood’s evolving setting in the
City of Palo Alto.
The Professorville Historic District Design Guidelines address individual homes, as well as the neighborhood’s overall landscape character.
15INTRODUCTION
The following broad principles are incorporated into the design guidelines:
• Property improvements and new construction are encouraged in
Professorville, in ways that are compatible with the character of the district.
• The character-defining features of existing historic buildings should
be retained and rehabilitated whenever possible, with an emphasis on
elements that can be seen from the public right-of-way. If deterioration
requires replacement, then replacement features should match the originals
as closely as possible.
• A historic building should not be demolished unless its rehabilitation is
infeasible due to its poor physical condition. If removal of an existing historic
building is necessary, then new construction should strive to retain the
existing property's character-defining features, which could include salvage
and reuse of materials and features.
• New additions to existing historic buildings should be subordinate to the
historic buildings in location, scale, and detailing.
• New residences should be designed and constructed so that they are not
more prominent in the district than properties built during the historic period.
• The architecture of new residences should be compatible with traditional
styles, materials, and building forms that characterize historic development
in the district.
• The massing and placement of new construction should respect the historic
streetscape of Professorville.
Guidelines are provided for homes dating to Professorville’s early and later periods of development.
16 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
How to Use the Guidelines
The guidelines are arranged according to the age of a building and the scope of a
proposed project:
• Chapter 3: Maintaining, Repairing, and Replacing Historic Materials
• Chapter 4: Altering or Adding to Residences From Early Periods of
Development (c. 1890-1930s)
• Chapter 5: Altering or Adding to Residences From Later Periods of
Development (1930s-present)
• Chapter 6: Designing and Building New Residences
• Chapter 7: Site Improvements: Landscape, Accessory Buildings, and the
Streetscape
While developing their projects, Professorville residents should focus their attention on
the chapter(s) appropriate to their specific goals. Each chapter introduces a number of
broad historic preservation concepts, based on the Secretary of the Interior’s Standards
for Rehabilitation, that should inform the thought process behind project development.
These concepts are organized by feature or project scope, and are broken down into
specific guidelines that will shape design decisions. Each guideline is followed by
additional and clarifying points that are organized in a bulleted list. The guidelines
cannot anticipate every specific case that will arise. Nevertheless, the guidelines
provide design objectives that can be applied to many different situations and result in
a compatible project that is integrated into its historic context.
Photographs included in this document
were chosen for the purposes of
illustrating particular guidelines. Please
note that the property represented in
any one photograph may not fulfill all
of the Professorville Historic District
Design Guidelines.
17INTRODUCTION
It should also be noted that the design
guidelines primarily offer principles
regarding character and compatibility,
rather than specific design solutions.
Where applicable, this document includes
references to additional resources that
will help explain the technical aspects of
preservation, which design teams can
explore while developing their projects in
order to meet the overall objectives of the
guidelines. It is therefore wise to select a
project team that has previous experience
working in historic contexts and has
encountered issues similar to what may be
expected in Professorville.
Components of a Design Guideline
1.1 Repairs and Alterations
to Historic Buildings
Historic exterior materials, whether used
for cladding or decorative purposes,
are critical components of a building’s
architectural style and finely grained
visual character.
1.1.1 Maintain original windows
wherever possible. e original
window type, including shape,
size, and material, should be
retained.
• Always consider repairing
original windows before
replacing. If replacement is
necessary, replacing in-kind
and matching the original
window is the preferred
treatment.
OVERARCHING CONCEPT, TYPE OF
PROJECT, OR FEATURE OF THE BUILDING
STATEMENT EXPLAINING DESIGN OBJECTIVE OR GENERAL APPROACHES
THAT APPLY TO ALL OF THE FOLLOWING GUIDELINES
DESIGN GUIDELINE ILLUSTRATING A PARTICULAR OBJECTIVE. OCCASIONALLY,
ADDITIONAL IDENTIFICATION OF DESIGN PRIORITIES FOLLOWS THE GUIDELINE
BULLETED LIST WITH SPECIFIC EXAMPLES
AND FURTHER INFORMATION
WHEN APPLICABLE, LINKS TO ADDITIONAL PUBLISHED INFORMATION ARE INCLUDED
For more information:
Preservation Brief 9: "The
Repair of Historic Wooden
Windows,” (NPS), https://www.
nps.gov/tps/how-to-preserve/
briefs/9-wooden-windows.htm
18 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Selecting an Architect and Contractor
Given that developing a project in the Professorville Historic District should be
undertaken with the design guidelines in mind, selecting a project team with the
right background is a helpful first step. One consideration in selecting architects and
contractors should be whether they have experience dealing with historic properties,
or with properties located within historic districts. It is strongly recommended that
Professorville residents interview potential firms regarding their qualifications at the
onset of their projects. Possible questions include:
• Is the firm familiar with the Secretary of the Interior’s Standards for the
Treatment of Historic Properties?
• Does the firm have experience designing projects that are located in
and compatible with historic districts?
• Is the firm knowledgeable about applying the State Historical Building
Code to residential projects?
The California Historical Resources Information System Consultants List compiles a
number of professional architects with demonstrated expertise in historic preservation,
organized by county: http://www.chrisinfo.org. This list is not exhaustive, and many
additional architects in the Palo Alto area likely have backgrounds working with
historic buildings.
19INTRODUCTION
Methodology for Developing the Guidelines
The process of developing these guidelines was a continuation of previous work
conducted prior to 2015 by the community and the Historic Resources Board, which
established design principles and approaches to development that encouraged the
preservation of historic neighborhood character. Continuity between previous efforts
and the current project was evident by the participation of community members who had
taken part in the previous workshops and meetings, as well as from new participants
including homeowners and members of the general public.
The Professorville Historic District Design Guidelines were developed following extensive
research and fieldwork, as well as solicitation of community input. Research included
review of the National Register nomination form and other literature relating to the historic
architecture and landscaping of Professorville.
The existing conditions of the neighborhood were surveyed in the field, and local
historians provided walking tours and knowledge about history and architecture. To
engage the community, a public workshop was held on February 23, 2016, at which the
participants (including individuals who took part in previous workshops held between
2011 and 2013) provided additional input on community design principles and the
preferred approaches to historic preservation.
Preparation of the design guidelines involved field survey to document neighborhood character, as well as community workshops to solicit input from neighborhood residents.
20 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Following the workshop, the consultant began work on the first draft of the guidelines,
which was submitted to the City for review in March 2016. City staff, in consultation with
an advisory panel that included architects, historians, and real estate professionals,
reviewed the administrative draft and provided comments. The consultant incorporated
staff’s comments into a public review draft, which was submitted to the City in April 2016.
The City posted online the draft guidelines for public review and comment on May 2,
2016. During the public review phase, a public workshop to present information and
discuss the draft guidelines was conducted on May 26, 2016, and an informational
presentation was given and testimony received at a Historic Resources Board hearing
on June 9, 2016. City staff reviewed and responded to the public comments that were
received, and the consultant incorporated applicable comments into the final design
guidelines to the extent feasible. The adoption process for the final guidelines involved
public hearings at the Historic Resources Board on July 28, 2016, and City Council on
____.
All photographs in this document were taken by Page & Turnbull except where otherwise
noted.
21INTRODUCTION
Secretary of the Interior’s Standards for Rehabilitation
The Professorville Historic District Design Guidelines provide recommendations
that are closely based on, and are consistent with, the National Park Service’s
Secretary of the Interior’s Standards for Rehabilitation. Rehabilitation is a treatment
that allows "a compatible use for a property through repair, alterations, and additions
while preserving those portions or features which convey its historical, cultural, or
architectural values.”2 The National Park Service has developed the applicable
Standards, listed on the following page, to help property owners, architects,
municipalities, and others to understand the fundamental concepts that would
accommodates changes and new uses of buildings, districts, and landscapes
while preserving historic character. Property owners in Professorville are strongly
encouraged to familiarize themselves with the Standards prior to developing their
projects.
2 "Standards for Rehabilitation," National Park Service, https://www.nps.gov/tps/standards/four-treatments/
treatment-rehabilitation.htm.
22 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Rehabilitation Standard 1: A property will be used as it was historically or be given a new use that requires minimal change to
its distinctive materials, features, spaces and spatial relationships.
Rehabilitation Standard 2: The historic character of a property will be retained and preserved. The removal of distinctive
materials or alteration of features, spaces and spatial relationships that characterize the property will be avoided.
Rehabilitation Standard 3: Each property will be recognized as a physical record of its time, place and use. Changes that
create a false sense of historical development, such as adding conjectural features or elements from other historical properties,
will not be undertaken.
Rehabilitation Standard 4: Changes to a property that have acquired significance in their own right will be retained and
preserved.
Rehabilitation Standard 5: Distinctive materials, features, finishes and construction techniques or examples of craftsmanship
that characterize a property will be preserved.
Rehabilitation Standard 6: Deteriorated historic features will be repaired rather than replaced. Where the severity of
deterioration requires replacement of a distinctive feature, the new feature will match the old in design, color, texture, and, where
possible, materials. Replacement of missing features will be substantiated by documentary and physical evidence.
Rehabilitation Standard 7: Chemical or physical treatments, if appropriate, will be undertaken using the gentlest means
possible. Treatments that cause damage to historic materials will not be used.
Rehabilitation Standard 8: Archaeological resources will be protected and preserved in place. If such resources must be
disturbed, mitigation measure will be undertaken.
Rehabilitation Standard 9: New additions, exterior alterations, or related new construction will not destroy historic materials,
features, and spatial relationships that characterize the property. The new work shall be differentiated from the old and will be
compatible with the historic materials, features, size, scale and proportion, and massing to protect the integrity of the property
and environment.
Rehabilitation Standard 10: New additions and adjacent or related new construction will be undertaken in such a manner that,
if removed in the future, the essential form and integrity of the historic property and its environment would be unimpaired.
Additional information is available at the National Park Service's website: https://www.nps.gov/tps/standards.htm
23INTRODUCTION
Frequently Asked Questions (FAQ)
Question: What is the difference between
guidelines and standards?
Answer: Guidelines are suggestions that
allow for case-by-case interpretation and
decision making based on several factors,
including but not limited to preservation
issues. Guidelines are a starting point for a
conversation about historically compatible
development. They do not provide
answers in and of themselves. Standards
are generally more prescriptive and literal,
and they are less flexible in allowing
interpretation and individual decision
making. Guidelines are proposed for
Professorville instead of standards in order
to allow for interpretation and flexibility
in decision making, based on specific
circumstances.
Question: How do the guidelines treat
diversity of architectural styles?
Answer: The guidelines acknowledge that
the existing character of Professorville
includes a variety of architectural styles
that developed during the district’s historic
period of development, approximately
1890s-1930s, as well as other architectural
styles that developed more recently.
However, the existing architectural
diversity does not necessarily mean
that Professorville can accommodate
additional contemporary architectural
styles without having an adverse effect
upon its character and its relationship to
the historic period. Newer architectural
styles should be introduced carefully and
with great forethought as to how they relate
to the historic architectural character of the
district.
Question: Do the guidelines differentiate
between contributors and non-
contributors?
Answer: The guidelines are meant to
apply equally to all properties in the
district; therefore, they do not include
radically different treatments for
contributors and non-contributors. The
guidelines encourage the preservation
of historic contributors, the rehabilitation
and restoration of altered historic non-
contributors, and the general compatibility
of properties constructed after the historic
period. The guidelines do distinguish
between properties constructed during
the historic period and those constructed
later, because architectural styles and
construction types changed substantially
after the 1930s.
24 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Question: How do the guidelines relate
to City codes and review procedures?
How will the guidelines be used in project
reviews?
Answer: The guidelines do not propose
any changes to existing City codes or
review procedures; nor do the guidelines
preclude making changes to City codes
or review procedures in the future, if
so desired. The guidelines are meant
to be used in concert with the existing
codes and review procedures, or with
updated codes and procedures that may
be adopted in the future. Under existing
codes and procedures, in cases where a
development application is subject to a
discretionary approval (e.g. Single Family
Individual Review), the guidelines may be
used by the HRB and staff to interpret and
clarify the existing Standards of Review in
the Municipal Code and the Secretary of
the Interior’s Standards for Rehabilitation.
When proposed exterior work requiring
building permits is subject to HRB review
and non-binding recommendation under
the current code, the HRB may use the
guidelines as a reference document when
making non-binding recommendations to
homeowners. Prior to filing a development
application, homeowners, architects, and
builders can use the guidelines as a design
tool early in the design development
process in order to inform preliminary
designs.
Professorville History and Character
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29PROFESSORVILLE HISTORY AND CHARACTER
Brief History of Professorville
Professorville belongs to the historic core of Palo Alto. Neither the neighborhood nor the
city at large existed prior to the opening of Stanford University, which Leland and Jane
Stanford established on land belonging to their large horse farm in northwestern Santa
Clara County. By the time Stanford University opened its doors in 1891, over 700 acres
of land east of the new campus had been set aside for a townsite that could house
those affiliated with the university. A number of freshly arrived faculty members wished
to purchase land and build homes for their families in this new college town, known as
Palo Alto. They chose the fledgling neighborhood that lay near the eastern boundary
of the campus, across the Southern Pacific rail line. For its early academic residents,
the neighborhood received the name Professorville. Its large lots and close proximity to
the university were attractive features for early residents, and homes were steadily built
there during the 1890s and first decades of the twentieth century.
Professorville’s academic atmosphere fostered an appreciation for fashionable
architectural styles. When faculty residents arrived in California, they imported elements
of residential architecture from the areas where they had previously lived: the Eastern
and Midwestern United States. Many new residences showed the influence of the
Shingle, Arts and Crafts, and Colonial Revival styles, reflecting a San Francisco Bay Area
2. Professorville History and Character
When Professorville was constructed, it conveyed a rustic feeling that is still experienced today. Cowper Street is seen above. Source: Stanford University Historical Photograph Collection
30 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
regional interpretation known as the First Bay Tradition. These residences frequently
were clad in wood shingles and had asymmetric façades, which created a naturalistic
impression throughout the neighborhood. Bernard Maybeck, one of the pioneers of the
First Bay Tradition at the turn of the twentieth century, was commissioned to build a home
for Emma Kellogg at the corner of Lincoln Avenue and Bryant Street. After this house
burned, Maybeck designed its distinctive replacement, now commonly known as the
Sunbonnet House. Other newly built residences in the early twentieth century showed
the influence of Revival styles, such as Tudor and Spanish Colonial. Yet all exhibited
a high quality of craftsmanship and design—truly notable for the somewhat isolated
outpost of Palo Alto at this time. While primarily filled with residences, Professorville
was also the location of the notable Castilleja Hall on Bryant Street, which housed a
girls’ preparatory school during the first decade of the twentieth century and was later
converted to housing.
By the 1920s, much of Professorville had been largely built out with single-family homes.
Most had detached automobile garages by this time, which were typically placed at the
rear of the lot. The development pattern of the neighborhood, particularly in its western
half, was characterized by a regular rhythm of handsome residences, each surrounded
by a well-appointed lawn. The eastern half of the neighborhood, on the other hand,
retained grander homes on expansive lots that resembled small estates. One element
that linked both halves of Professorville was an impressive tree canopy, created in part
by the immense redwood and live oak trees that predated the development of Palo Alto
and were left standing in private yards as well as in public roadways.
Many large trees were originally left standing within Professorville’s roadways. Source: Stanford University Historical Photograph Collection
31PROFESSORVILLE HISTORY AND CHARACTER
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LEGEND
Professorville Historic District
Year Built:
1890 - 1899
1900 - 1909
1910 - 1919
1920 - 1929
1930 - 1939
1940 - 1979
1980 - 2013
Professorville's residences have been constructed over the course of more than a century. Many of the oldest homes are located in the district's west half.
32 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Over time, several of Professorville’s larger lots were subdivided, and any parcels that
remained empty were filled in the postwar period. Kingsley Court, a cluster of 10 cottages
designed by prolific Palo Alto architect Birge Clark, was constructed in 1940. In the
following decades, a handful of Modernist style houses were added to the neighborhood,
as well as two new religious complexes: St. Ann’s Chapel (established by playwright
and diplomat Clare Boothe Luce to memorialize her deceased daughter) and the First
Presbyterian Church. Professorville’s residents also shifted away from the faculty who
had originally built homes there, as many of the large residences were converted to
student housing by mid-century. In the 1970s and 1980s interest in historic preservation
increased, and over time many of the homes in the neighborhood were rehabilitated and
returned to single-family residential use.1
1 The narrative in this section is informed by the following sources: Historic Environment Consultants,
Historical and Architectural Resources of the City of Palo Alto: Inventory and Report, prepared for the City
of Palo Alto, 1979; Professorville National Register Nomination; Virginia and Lee McAlester, A Field Guide
to America’s Historic Neighborhoods and Museum Houses: The Western States (New York: Alfred A. Knopf,
2008).
33PROFESSORVILLE HISTORY AND CHARACTER
General Description of Current Conditions
Overall Visual Character
As a result of its historic development, Professorville contains an outstanding variety of
residential architecture set within a verdant landscape of towering trees and well-kept
yards. Dating to the late nineteenth and early twentieth centuries, the majority of the
neighborhood’s houses vary in style and scale—some modest cottages, others large and
stately mansions. Yet, they share certain materials and decorative elements that create
the compelling architectural aesthetic that defines Professorville’s historic character.
One of the most apparent of these is the pervasive use of wood shingle siding, which
relates to the lushly planted yards and streetscape and gives the neighborhood a rustic
feel. At the same time, the homes feature many formal details derived from the Classical
architectural vocabulary, such as columns, dentils, and cornices. The result of these
repeated elements is that buildings throughout Professorville have visual similarities in
spite of their differences in plan, massing, and roof forms.
Most homes in Professorville face the street, creating a handsome visual impression.
34 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Site Development Patterns
The homes and accessory structures that make up Professorville are physically arranged
in a discernible pattern that contributes to its cohesive visual character.
• Many lots are 50’-75’ in width in the most tightly spaced portions of
Professorville’s west half; larger lots are typically located north and east of
Waverley Street.
• Early residences are set back from the street between 25’-40’, so that they
have ample front yards with narrow side yards.
• Most homes have one-and-one-half, two, or two-and-one-half stories.
• Most garages are detached from early residences and placed at the rear of
their lots, typically along the property line.
• Where rear alleys are present in the western half of the neighborhood,
garages and carriage houses open directly onto the alley.
• Kingsley Court, the loop of cottages located alongside Kingsley Avenue,
was constructed as infill development in 1940; its pattern of smaller homes
with compact yards is visibly distinct from the overall siting patterns of
the historic neighborhood. The complex of the First Presbyterian Church
on Cowper Street is a further example of infill that presents a contrasting
development pattern.
35PROFESSORVILLE HISTORY AND CHARACTER
Streetscape and Landscape Patterns
The idyllic character of Professorville owes much to the pattern of yards, trees, and
plantings that line the neighborhood’s sidewalks and face toward the public streets. The
visual impression a visitor encounters while passing through Professorville is greatly
influenced by the following features and spatial relationships:
• Examples of large, mature trees date prior to the neighborhood’s construction
and have been left in place. These include coast live oak and valley oak.
• Other mature trees and hedges appear to have been planted in the first
decades of the neighborhood’s development. These include coast redwood,
date palm, Southern magnolia, persimmon, camphor, Carolina laurel hedge,
loquat, English yew, and hawthorne:
• The front yards of many residences include edge features, such as low wood
picket fences and/or hedgerows, lining the public sidewalk.
• Fences and hedgerows vary in their visual permeability, i.e. some allow front
yards to be totally visible from the public right-of-way while others do not.
• Front yards are typically graded flat. Many are planted with grass, yet others
feature eclectic planting schemes of shrubs and other low plantings.
• Approach walks lead through front yards to reach front entrances; many are
narrow and are perpendicular to the public sidewalk. Common materials for
approach walks are brick or concrete edged in brick.
• Where approach walks meet the public sidewalk, fences often feature gates,
gateposts, or trellises.
• Curvilinear walks paved in stone appear to be more recent alterations.
• Some more recent residences (c. 1970-present) have extensive concrete or
gravel paving throughout the front yard.
Many front yards in Professorville are edged in low fences, which communicates a progression from public to private space.
A number of early trees in Professorville have been left standing, defining the neighborhood’s landscape character.
36 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• Historic driveways are generally wide enough for only one car and are
located along one edge of the parcel.
• Expansive driveways that lead in front of their respective house are generally
signs of later intervention.
• Parking strips have varied planting schemes but generally contain evenly
spaced street trees of numerous species.
• Street lights are non-historic and are mounted onto the neighborhood’s utility
poles.
• Older curb cuts at driveways have a tight radius.
Historic Developments in Residential Landscapes
Virginia and Lee McAlester's reference book A Field Guide to America’s Historic
Neighborhoods and Museum Houses: The Western States identifies several broad
characteristics of residential landscapes that were employed during Professorville's
initial period of development in the late nineteenth and early twentieth centuries. In
the 1880s and 1890s, private yards were often surrounded by low ornamental fences,
possibly made of wood or cast iron. Foundation plantings were not commonly used
surrounding a residence, but instead homeowners inserted planting beds, shrubs,
and trees in the middle of their yards. Low wood fences were still used during the
1910s, and often included trellises or other features at pedestrian entrances. At that
time, it had become more common for residential yards to include profuse plantings
of shrubs and other vegetation than during the Victorian era. By the 1920s, foundation
plantings could be found alongside the foundation of a house; the front lawn was
often left open and uninterrupted apart from trees. Throughout these periods, paving
was typically limited to walkways and narrow driveways that reached detached
garages and carriage houses.
37PROFESSORVILLE HISTORY AND CHARACTER
Historic Architectural Styles in Professorville
The character of Professorville is crucially defined by its residences. This section presents
some of the most prevalent historic architectural styles found in the neighborhood and
describes features that are commonly found on homes that belong to those styles. The
following lists of features should not be understood to be comprehensive and complete.
Rather, they are meant to assist Professorville residents to understand the stylistic
qualities of their homes and to identify those elements that define their historic visual
character. Gaining such an understanding will be important when using the guidelines
included later in this document.
Note that some residences may not have a single style but instead combine elements
from more than one, so character-defining features may come from more than one list.
Those residences with a combination of styles should not be thought of as “impure”
examples. Instead, they should be recognized for adding to the architectural variety that
is one of Professorville’s hallmarks.
38 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
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LEGEND
Professorville Historic District
Style / Influence:
Shingle Style; Colonial Revival; Queen Anne; Craftsman; Prairie
Spanish Colonial Revival; Mission Revival; Tudor Revival; French Eclectic
Bungalows; Modern; Ranch
Neoeclectic; Neotraditional; Contemporary
This map displays the
general distribution of
different architectural
styles, as explained in
the following pages.
Many homes exhibit the
characteristic features of
more than one style, so the
groupings above are kept
broad.
39PROFESSORVILLE HISTORY AND CHARACTER
First Bay Tradition/Shingle Style
The influence of the First Bay Tradition, the Bay Area variant of the Shingle style, is
found throughout Professorville. The First Bay Tradition showcases the naturalistic,
almost rustic elements of the Shingle style, in particular wood shingle cladding and
asymmetrical arrangement of features and volumes. At the same time, homes built in this
style may have classically inspired features, such as columns or dentils, and gambrel
roofs that reflect the influence of the Colonial Revival style (see the following page). First
Bay Tradition residences are also defined by a high level of craftsmanship, which can be
seen in impressive carved wood and art glass.
Common features seen on First Bay Tradition/Shingle Style houses in Professorville
include:
• One-and-one-half or two stories tall
• Wood shingle and/or wood clapboard siding
• Low-pitched roof slopes
• Decorative brackets and exposed rafter tails underneath eaves
• Wood-sash windows, typically with divided lites and occasionally with
diamond muntin patterns
• Front porches or recessed entries
• Shed-roofed or hipped-roof dormers
• Asymmetrical arrangement of features at façades
• Cantilevered overhangs above the first story, in some instances flared
outward
• Angled or boxed bay windows
Homes influenced by the First Bay Tradition and Shingle Style include the Kellogg House, at top, designed by Bernard Maybeck. Wood shingle siding is an important feature of these homes.
40 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Colonial Revival residences are characterized by their symmetrically arranged façades and Classical architectural details.
Gambrel roofs are seen on homes throughout Professorville, reflecting the mixture of Colonial Revival and other influences.
Colonial Revival
Colonial Revival residences in Professorville reflect the renewed fascination with the
formal Georgian architecture of the United States’ colonial era. A craze for the Colonial
Revival followed the Centennial International Exposition of 1876, held in Philadelphia to
celebrate one hundred years of American independence from Great Britain. Many of
Professorville’s early faculty residents were recruited from the East and would have been
familiar with this style. A number of the Colonial Revival’s distinctive characteristics were
also employed in First Bay Tradition homes, as described on the previous page.
• Two stories tall
• Symmetrical arrangements of bays (often numbering five), with main
entrances located at center
• Side-gabled roofs (gambrel roofs indicate Dutch colonial influence)
• Front porticoes at the main entrances, supported by columns
• Wood-sash windows
• Sidelites and fanlites surrounding front doors
• Molded cornice element with dentil courses
• Shutters flanking windows
• Quarter-round windows flanking chimneys
41PROFESSORVILLE HISTORY AND CHARACTER
Queen Anne residences take different forms in Professorville.
Queen Anne
Perhaps the quintessential Victorian-era architectural style, Queen Anne was extremely
popular across the United States in the late nineteenth century. Homes built according
to this style are often characterized by highly ornate features and sprawling, irregular
footprints with trademark turrets or towers.
• Two stories tall
• Irregular floor plans and massing, with corner towers and/or angled bay
windows
• Complex, intersecting roof forms with steep pitches
• Often, a prominent front-facing gable
• Wood clapboard siding with areas of fishscale shingles
• Ground-level wrap-around porches with spindlework balusters and carved
brackets
• Decorative wood detailing located within gables
• Wood-sash windows
• Palladian windows and wood columns (in Free Classic Queen Anne sub-
type)
42 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Stucco cladding, tile roofs, and arched openings are characteristic of homes influenced by Spanish Colonial architecture.
The Mediterranean Revival style is characterized by symmetricality, whereas other related styles often have asymmetrical façades.
Spanish Colonial Revival, Mission Revival, Mediterranean Revival, and Spanish Eclectic
A number of homes in Professorville were designed using related styles reflecting the
influence of Spanish Colonial architecture in California. Unlike Professorville’s other
Revival styles, Spanish Colonial Revival was not imported from the Eastern United States
but instead first developed in California, in cities like San Diego and Santa Barbara.
These styles are instantly recognizable in their material palette, particularly stucco and
red clay tile roofs, that distinguish them as belonging to a regional vernacular.
• One or two stories tall
• Asymmetrical arrangements of features
• Smooth stucco cladding, painted white or beige
• Half-round clay roof tiles
• Shaped roof parapets (specific to the Mission Revival style)
• Wrought iron balconette railings
• Paired wood-sash casement windows
• Arched window and door openings
• Tile vents within gables
• Decorative chimney caps
• Stucco cartouches
43PROFESSORVILLE HISTORY AND CHARACTER
Prominent front gables are characteristic of the Craftsman style.
Craftsman
The Craftsman style, including the well-known bungalow sub-type, interpreted the cues
of the somewhat elite Arts and Crafts and First Bay Tradition in California for a wider
audience. Craftsman homes were meant to give the impression of high quality materials
and craftsmanship, but often came from mass-produced plans.
• One-and-one-half stories tall
• Low-sloped gabled roofs
• Decorative brackets and exposed rafter tails underneath overhanging eaves
• Porches, often full-width and supported by tapered piers
• Wood clapboard siding
• Prominent dormers (gabled or with shed roof) over front roof slopes
• Wood-sash windows
• Boxed bay windows
• In some instances, clipped gables
44 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Half timbering is a recognizable marker of the
Tudor Revival style.
Tudor Revival
The Tudor Revival is seen occasionally in Professorville. Another of the Revival styles
popular in the early twentieth century, Tudor looked to medieval England for inspiration
and is unmistakable through its use of half timbering, which imitates the appearance of
wattle and daub placed within structural wood frames. In Tudor Revival, such timbering
is decorative and has no actual structural purpose.
• Non-structural pattern of timbering filled by areas of stucco cladding
• Asymmetrical arrangements of features
• Steep roof slopes
• Wood-sash windows
• Often, prominent brick chimneys
• In some cases, curved eaves to emulate the shape of a thatched roof
45PROFESSORVILLE HISTORY AND CHARACTER
Strong horizontal massing and low-pitched roofs
indicate the influence of the Prairie School.
Prairie School
Prairie School architecture is most often associated with Frank Lloyd Wright and the
flat landscapes of the American Midwest. Its influence, however, is seen on residences
throughout Professorville. Here, these homes are usually two stories tall with a rectangular
plan—not as complexly designed as Wright’s, yet they emphasize their horizontal
dimensions through several design strategies and features.
• Two stories tall
• Broad front façade
• Rectangular plan
• Shallowly pitched hipped roofs with widely overhanging eaves
• Wood belt course located between the first and second stories
• Wood-sash windows
46 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Later Changes and Development
Even after the significant first wave of development in Professorville came to a close
in the 1930s, residences continued to be built in the neighborhood as larger lots were
subdivided. These homes were designed in the following general styles:
Modern
Many residences constructed in the United States after World War II reflected a
departure from the materials and decorative treatments that defined Revival styles
earlier in the century. Mid-century modern home designs took advantage of mass
produced materials and were more austere in their use of architectural features. Ranch
homes, a distinct sub-type of the modern style, are low-slung and characterized by their
rambling floorplans. While these homes do not date to the first waves of construction in
Professorville, many are muted in their design vocabulary and generally do not distract
from the neighborhood’s historic character. The neighborhood’s two churches, St. Ann’s
Chapel and the First Presbyterian Church, are also designed in this general style.
• Simple arrangement of features
• Flat façade planes with a variety of cladding materials: brick, wood, and/or
stucco
• Asymmetrical front façades
• Gabled roofs
• Attached garages incorporated into house volume
• Large fixed windows, possibly metal-sash, placed on façades for
compositional effectBuildings constructed in Professorville during the postwar period are visibly distinct from the neighborhood’s earliest homes.
47PROFESSORVILLE HISTORY AND CHARACTER
Neoeclectic residences reflect modern interpretations of older architectural styles.
Neoeclectic
Other new residential styles introduced to Professorville after the 1960s can be referred
to as “Neoeclectic.” These homes interpret earlier architectural styles, such as Colonial
or Tudor Revival. Some draw upon the relatively simple designs of Mid-Century
Modern, while others are more literal in their approximation of earlier styles. While these
residences may take cues from the same historic architectural styles as earlier homes
in Professorville, they can often be identified by their large size, loose interpretation of
historic styles, and attached garages. These types of homes can vary greatly, and they
may feature some of the following:
• Historicist features taken from earlier Revival styles (such as large entry
features, porches, and cornices)
• Irregular/asymmetrical arrangement of features
• Attached garages incorporated into the house volume
For more information:
“Preservation Brief 17: Architectural
Character—Identifying the Visual
Aspects of Historic Buildings as an
Aid to Preserving their Character,”
(NPS), https://www.nps.gov/tps/how-
to-preserve/briefs/17-architectural-
character.htm
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Guidelines for Maintaining, Repairing, and
Replacing Historic Materials
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53GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
3. Guidelines for Maintaining, Repairing, and Replacing
Historic Materials
The guidelines included in this chapter are intended to help Professorville residents
identify and retain the historic materials and craftsmanship that convey the character of
their homes and neighborhood. Historic exterior materials, whether used for cladding
or decorative purposes, are critical components of a building’s architectural style and
finely grained visual character. As Professorville’s residences are recognized for the high
quality of their materials and design, it is important that residents develop as sensitive an
approach as possible while dealing with the historic fabric of their homes.
The following guidelines offer recommendations to aid residents who wish to embark
on maintenance and preservation projects for their homes. With these guidelines,
projects can be developed in accordance with the general principle that existing historic
materials should be retained and repaired wherever possible, and replaced only where
necessary if severely deteriorated and/or damaged. If a historic feature or material
cannot be repaired, it should ideally be replaced “in kind”—meaning the replacement
should match in size/proportion, texture, and visual details to the extent feasible. When
conducting a rehabilitation of a historic building, it is understood that repair of existing
features and materials is not always feasible, and that exact replacement is not always
possible or practical, in which case some judgment must be exercised in determining
the appropriateness of replacement. The following guidelines offer broad principles
and best practices that should inform the early planning stages of a project. Additional
resources listed throughout the chapter should be consulted for specific technical
solutions that residents can use to meet the objectives of the guidelines.
54 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
3.1 Historic exterior materials should be maintained and repaired
whenever possible, and if deteriorated they should be replaced in
kind.
The materials that make up Professorville’s early residences contribute both
visually and functionally to the neighborhood’s historic qualities. Repairing the
existing materials is always the first approach that should be explored before
a project is undertaken. If repair is not possible, investigate in-kind materials
to match the old as closely as possible in order to retain the residence’s overall
visual character.
3.1.1 Historic exterior wall cladding should be maintained and repaired, in order to
keep it in good working condition. Deteriorated historic cladding should be
replaced in kind to match the existing as closely as possible.
• Retain existing wood shingle, wood clapboard, and stucco wall cladding
where these types existed historically. These are common character-defining
materials found throughout Professorville that often relate to particular
architectural styles.
• Where wall cladding has been painted or stained historically, continue to
apply the same treatments to offer protection against the elements.
• When cleaning or preparing to repaint historic cladding materials, do not
attempt to remove existing paint or debris in a way that causes damage
to the historic material. Sandblasting and other abrasive measures are not
appropriate.The interplay between cladding materials is important to the character of many homes within Professorville.
55GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
• Avoid covering character-defining cladding with vinyl, aluminum, or other
synthetic siding materials. If these materials have already been installed,
their removal is encouraged in order to restore the historic character of a
residence.
• Maintain decorative stucco elements such as molded cartouches, as they
are characteristic of a residence’s architectural style.
• If stucco cladding is to be patched, match the existing stucco's composition
and surface texture, which are often characteristic features.
• Replace areas of wood shingle and clapboard siding only where they are
deteriorated. Do not remove a greater number of shingles or boards than is
required in order to make the repair and maintain visual consistency.
• Match the replacement wood siding to the historic siding as closely as
possible. Consider dimensions (size, shape), surface profile, and pattern of
historic siding.
• If historic shingles were manufactured using an identifiable and visually
distinctive species of tree—such as redwood—attempt to use the same
species for the replacement shingles.
Stucco cladding is an important feature of homes designed in Spanish Colonial and Mediterranean Revival styles and should be preserved where it already exists.
56 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
For additional information:
“Preservation Brief 1: Cleaning and Water-Repellent Treatments for Historic
Masonry Buildings” (NPS), https://www.nps.gov/tps/how-to-preserve/briefs/1-
cleaning-water-repellent.htm
“Preservation Brief 6: Dangers of Abrasive Cleaning to Historic Buildings” (NPS),
https://www.nps.gov/tps/how-to-preserve/briefs/6-dangers-abrasive-cleaning.htm
“Preservation Brief 10: Exterior Paint Problems on Historic Woodwork” (NPS),
https://www.nps.gov/tps/how-to-preserve/briefs/10-paint-problems.htm
“Preservation Brief 14: The Use of Substitute Materials on Historic Building
Exteriors” (NPS), https://www.nps.gov/tps/how-to-preserve/briefs/14-exterior-
additions.htm
“Preservation Brief 22: The Preservation and Repair of Historic Stucco” (NPS),
https://www.nps.gov/tps/how-to-preserve/briefs/22-stucco.htm
57GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
3.1.2 Historic roong materials should be maintained and repaired in place. Failing
roong materials should be replaced with the goal of matching the material
and appearance of the original as closely as possible.
• Maintain existing wood shingle and clay tile roofing materials where feasible,
as they often relate to a residence’s architectural style. When necessary,
attempt to replace in kind considering the color, shape, and size of the
historic materials.
• Inspect and repair roofing systems regularly. Water infiltration through the
roof can ultimately damage features throughout a residence.
• Property owners are encouraged to research the original roofing of their
homes, and to consider replacing non-compatible roofing materials with
historically compatible materials that match the visual character of the
original.
• Avoid installing standing-seam metal roofs in Professorville, as they were not
found in the neighborhood historically.
• Avoid covering exposed rafter tails and wood brackets with boxed-in eaves.
If rafter tails are deteriorated, attempt to replace them with new members
that maintain the historic profile of the original.
Roofing materials are important components of a residence’s architectural style.
58 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
For additional information:
“Preservation Brief 4: Roofing for Historic Buildings” (NPS), https://www.nps.gov/
tps/how-to-preserve/briefs/4-roofing.htm
“Preservation Brief 19: The Repair and Replacement of Historic Wooden Shingle
Roofs” (NPS), https://www.nps.gov/tps/how-to-preserve/briefs/19-wooden-shingle-
roofs.htm
“Preservation Brief 30: The Preservation and Repair of Historic Clay Tile Roofs”
(NPS), https://www.nps.gov/tps/how-to-preserve/briefs/30-clay-tile-roofs.htm
59GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
3.2 Repair Historic Windows and Doors Whenever Feasible, and
Replace in Kind Where Necessary.
Wood-sash windows and partially glazed doors are traditional types in Professorville,
and many are configured with muntins that divide the window sash into smaller lites.
Insensitive repair or replacement of wood windows and doors may have a greater
visual effect on the residence than intended. For this reason, residents should attempt
to maintain historic windows and doors as much as possible and, where necessary,
replace with windows and doors that closely replicate the appearance of the earlier
ones.
3.2.1 Historic windows are important character-dening features and should be
retained and repaired when feasible.
• Provide cyclical maintenance to historic windows in order to keep them in
operable condition and to prolong their lifespan.
• Where one component of a window is deteriorated or broken (such as a
muntin or a lite), attempt to repair or replace the individual element rather
than replacing the entire window unit. If a full window must be replaced
due to deterioration, match the new window to the original in dimensions,
operability (such as hung, fixed, or casement), and configuration of muntins.
Priority for this approach should be given to windows visible from the public
right-of-way.
• Where non-standard window types—for instance, windows with arched
shapes or diamond muntin patterns—are deteriorated and cannot be
repaired, investigate manufacturing new windows to match the appearance
of the originals.
Attention should be paid to the distinctive sizing, spacing, and configuration of windows on an older residence in Professorville.
60 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• Attempt to replace specialty glass types, such as stained glass, with
materials that provide the same visual effect.
• Replace deteriorated window trim and other treatments to match the size
and profile of the original as closely as possible.
• Avoid installing new aluminum- and vinyl-sash windows, which are not
necessarily the most cost effective alternatives to new wood-sash windows.
Synthetic materials do not typically resemble wood, often do not closely
match the proportions of the original windows, and have much shorter
lifespans.
• Investigate measures that increase energy efficiency for historic wood-sash
windows while retaining their historic visual character. Possible solutions
include weather stripping and interior storm windows.
3.2.2 e appearance and location of historic doors should be maintained.
• Repair historic wood doors whenever feasible, rather than replace them.
Keep in mind that hardware and glazing patterns also contribute to the
historic character of a door.
• If exterior doors must be replaced, choose a new door type that is compatible
with the residence’s architectural style. Panel and/or partially-glazed
doors are recommended, as they are appropriate to the early period of
Professorville’s development. This is particularly important for street-facing
doors.
• Maintain historic door trim. If it is determined to be in need of replacement,
match the profile and material of the original as closely as possible.
• Maintain the historic location of a residence’s front entrance.
61GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
For additional information:
“Preservation Brief 9: The Repair of Historic Wooden Windows,” (NPS), https://www.
nps.gov/tps/how-to-preserve/briefs/9-wooden-windows.htm
“Replacement Windows that Meet the Standards,” (NPS), https://www.nps.gov/tps/
standards/applying-rehabilitation/successful-rehab/windows-replacement.htm
“Repair and Upgrade Windows and Doors,” (NPS), https://www.nps.gov/tps/
sustainability/energy-efficiency/weatherization/windows-doors.htm
“Saving Windows, Saving Money,” (Preservation Green Lab of the National Trust for
Historic Preservation),
http://www.preservationnation.org/information-center/sustainable-communities/
green-lab/saving-windows-saving-money/
The Window Sash Bible: A Guide to Maintaining and Restoring Old Wood Windows,
Steve Jordan, http://painintheglass.info/pages/window-restoration-bible.php
62 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
3.3 Additional Character-Dening Features at Contribute to an
Early Residence’s Visual Appeal Should Be Preserved.
Numerous types of decorative and functional elements are found throughout
Professorville and help to create its richly detailed material fabric and visual
character. Such features, which are carefully arranged and organized on individual
residences according to the tenets of historical styles and periods, include wood
cornices, dentils, and belt courses; porches and other entry features with column
supports; wrought iron window grilles; wood porch railings and balusters; and
decorative wood half-timbering. Pay heed to these types of features and their
role in the overall appearance and personality of a residence.
3.3.1 Retain and repair character-dening decorative features wherever possible,
and if replacement is required match the new as closely as possible to the
original.
• Always attempt to repair historic decorative features as a first course of
action.
• If these features are damaged or deteriorated to the point of failure, select
replacement materials matching the dimensions and appearance of the
original as closely as possible.
• Where deteriorated brick masonry is found, replace damaged brick with
new that matches the original’s color, size, and surface texture. Additional
characteristics that should be considered include the bonding and
decorative patterns of the brick.
Historic homes throughout Professorville have distinctive decorative features that convey their character. They should be treated sensitively whenever possible.
63GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
• If brick repointing is required, attempt to determine a compatible mortar
composition in order to avoid future damage to the brick.
• Prioritize in-kind repairs for features that are located near the front of a
residence and are visible from the public right-of-way.
3.3.2 Consider recreating missing historic features if adequate evidence exists to
determine original appearance and materials.
• Residents are encouraged to recreate historic features on a building where
they once existed on that building but were later removed. These projects,
however, should rely on evidence such as historic documentation or the
"ghosting" (physical imprint or outline) of lost features to guide an accurate
recreation.
• Look for historic photographs and original architectural drawings that could
provide the basis for replicating missing features.
3.3.3 Do not introduce new architectural elements to a residence where they did not
exist historically.
• Avoid placing new stylistic elements on a residence (such as brackets or
bay windows) based on conjecture rather than on research—i.e., if the chief
reason is that they simply feel period appropriate.
• A residence should not have new features added that represent a different
historic period or architectural style than the existing property.
• When selecting new features such as lighting fixtures, choose a style
that is compatible with the character of a home but that may also exhibit
contemporary character.
64 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
3.3.4 When planning to paint exterior walls and features, explore color schemes that
are compatible with a home's historic context.
• Aim to select paint colors for the exterior of a residence that are compatible
with the historic character and period of the residence. This effort can be
informed by research on period-appropriate schemes, as well as by careful
investigative testing that could reveal a home's historic paint colors.
• Muted colors are encouraged for the primary exterior walls, with contrasting
accent colors selected for decorative elements and trim.
• Avoid selecting colors or reflective sheens that contrast sharply with nearby
buildings.
For additional information:
“Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings”
(NPS), https://www.nps.gov/tps/how-to-preserve/briefs/2-repoint-mortar-joints.htm
“Preservation Brief 45: Preserving Historic Wood Porches” (NPS), https://www.nps.
gov/tps/how-to-preserve/briefs/45-wooden-porches.htm
65GUIDELINES FOR MAINTAINING, REPAIRING, AND/OR REPLACING HISTORIC MATERIALS
Solar roof panels should be placed so that they have as minimal a visual impact as possible on the publicly visible areas of a home.
3.4 e Historic Character of Homes Should Be an Important
Consideration When Exploring Green Technology.
Sustainability is a critical principle that can be achieved with many building types,
including historic residences. “Green” building approaches and a home’s significant
historic qualities are not mutually exclusive and can work in tandem.
3.4.1 Solar panels and other energy savings devices should be placed to have as small
an impact on historic character as possible.
• Place solar panels and skylights on roof slopes that are less visible from
the public right-of-way whenever possible, as these types of features can
visually contrast with the historic forms, textures, and materials of the roof.
• Research new solar panel and energy capture products that attempt to
replicate the appearance of wood shingles; use them where they will have
the least visual and material impacts, such as away from the front of a
residence when feasible.
3.4.2 Sustainable materials should be considered while planning exterior alterations.
• Investigate post-consumer and salvaged materials with an eye towards
replicating the historic appearance of original features and materials.
• Keep in mind that repairing and retaining existing historic features where
possible is an inherently green approach because it saves energy and
materials.
66 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
For additional information:
“Illustrated Guidelines on Sustainability for Rehabilitating Historic Buildings,” (NPS),
https://www.nps.gov/tps/standards/rehabilitation/guidelines/index.htm
"Design Guidelines for Solar Installations," (National Trust for Historic Preservation),
http://www.preservationnation.org/information-center/sustainable-communities/
buildings/solar-panels/design-guidelines-for-solar.html
Guidelines for Altering or Adding to
Residences from Early Periods of
Development (c. 1890-1930s)
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71GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
4. Guidelines for Altering or Adding to Residences from
Early Periods of Development (c. 1890-1930s)
It is anticipated that some projects proposed for residences in Professorville will exceed
the scope of maintaining, repairing, and preserving historic features. Constructing
additions and other major projects may result in obvious interventions that could distract
from the historic character of a residence or its surrounding streetscape if not conducted
sensitively. Such projects, however, can be planned and implemented to have a minimal
impact on the neighborhood, and in some cases to enhance the neighborhood's character
and visual qualities. The guidelines in this chapter are intended to give homeowners
and architects a set of principles that would accommodate change—yet would also
help safeguard a residence’s distinctive form, visual character, and relationship to its
neighbors.
These guidelines are tailored specifically for residences that date to Professorville’s
earliest period of development from the 1890s to the 1930s. Residences built during
these decades embody the historic district’s unique character, and most likely these are
the buildings that first come to mind when a Palo Alto resident thinks of Professorville. The
neighborhood’s homes from this era are stylistically varied—showcasing Arts and Crafts,
Colonial Revival, and Eclectic Revival influences—yet many have similarities in terms of
scale, materials, and placement on the lot. Stewardship of the distinctive character of
these residences while allowing and managing change is the most important goal of
historic preservation in Professorville.
72 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
4.1 New Additions to Early Residences Should Respect the Primacy
and Historic Features of the Original Building.
Professorville’s older residences are defined by their relatively uncomplicated
volumes, distinctive architectural features, and strong façade planes that face
the street, forming a repeated visual rhythm that is one of the neighborhood’s
most memorable qualities. New additions to these homes should be designed to
be subordinate to the existing buildings and support the overall appearance of
the historic streetscape.
4.1.1 Additions should be placed where they will not distract from the volume of the
historic residence.
• Locate new additions at the rear of the historic residence whenever possible.
This strategy maintains the historic view of the home as seen from its front,
as well as the overall streetscape pattern as experienced in the public realm.
• If a side addition is desired, design the addition so that it is set back
clearly from the primary volume of the residence. Such an approach retains
the primacy of the original building and continues a historic pattern of
constructing subordinate additions in the neighborhood.
• When designing an addition to a residence, consider where new construction
would have the least impact to existing character-defining features. An area
that has already experienced alterations, such as at a previously constructed
addition, may be the most appropriate location for new construction.
For additional information:
“Preservation Brief 14: New Exterior
Additions to Historic Buildings:
Preservation Concerns” (NPS), https://
www.nps.gov/tps/how-to-preserve/
briefs/14-exterior-additions.htm
This side addition to an early home in Professorville is visible from the street but is clearly set back from the original front façade.
73GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
• Constructing new attached garages on historic homes is strongly discouraged
in Professorville, as attached garages convey a later development pattern in
the neighborhood (see 7.3.2). If an attached garage is deemed necessary,
make every attempt to place it to the rear of the primary volume of a residence
in order to minimize its visual impact as seen from the street.
4.1.2 New additions should be sized appropriately to the scale of the historic
residence.
• Design an addition taking into account the size that is best suited for a
sensitive and compatible addition, rather than simply designing an addition
to maximize the square footage on a lot.
• Avoid constructing an addition that exceeds the height of the existing home,
in order to ensure that the form and scale of the historic residence remain
the prominent characteristics. If a taller addition is necessary to meet the
needs of current occupants, such as in the case of an existing one-story
cottage, explore strategies to minimize the visual and physical impacts of
the addition. These strategies may include setting the addition behind the
existing home, connecting the existing and new volumes with a hyphen, and
mitigating the visual bulk of the addition with sloped roofs.
Consider the effect of an addition's placement and height on the overall appearance of a home. A hyphen can be used to differentiate a new addition from the original house volume.
74 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• Avoid building a rear addition that is wider than the original residence.
Ideally, a rear addition will not project beyond the sides of the existing house
volume. If the narrow width of an existing residence would result in a wider
rear addition in order to meet the needs of current occupants, pay special
heed to employing compatible massing and roof forms to minimize the visual
impact of the addition.
4.1.3 If a home already has a non-historic addition, consider placing a new addition
at the same location in order to alter historic character as little as possible.
• Portions of a home that have already experienced change can be considered
as areas of opportunity for new construction, where they pose the least risk
of affecting overall historic character.
• Where existing non-historic additions are incompatible with the character
of a historic home, consider employing selective demolition and/or new
construction to improve the form and massing of the addition and its
compatibility with the historic volume.
• Existing non-historic additions can generally be removed without affecting
the character of the property or the historic district. Note that an addition
from Professorville's early periods of development may contribute to a
residence's character (see 4.5.2).
75GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
These side additions were designed to share materials and decorative features with the original home.
4.2 e Architectural Character of a New Addition Should Be
Compatible with the Historic Residence.
The existing character of historic properties in Professorville—as evidenced by a
property's style (if any), its period of construction, its materials and ornamentation,
and its level of historic craftsmanship—should be referenced in the design of new
additions. The new work should not introduce new material types, new complex
roof shapes or volumes, or new types of detailing that are not already present on
the historic building. “Compatible but differentiated” is an achievable balance
that property owners should strive toward.
4.2.1 e massing and roof forms of an addition should draw on the architectural
cues of the existing residence.
• Design additions with a careful eye to the original massing of the residence.
• Plan the new roof forms of an addition to be similar to those of the existing
home. This includes both the shape of the roof (gabled or gambrel roof, for
instance) and the pitch of its slopes.
• If designing a first-story addition, consider a shed roof. This form is generally
compatible with a range of roof types and can extend an original roof slope
without a distracting visual impact.
76 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
4.2.2 e characteristic materials of a residence should inform the choice of
materials for a new addition.
• Respect the existing residence by using cladding and roofing materials that
are compatible with those that are historic.
• A new addition may continue the use of character-defining features found on
the residence, such as brackets and exposed rafter tails, in order to provide
visual continuity. However, slight variation and/or simplification in detailing
at the new addition is recommended in order to differentiate old and new
(see 4.2.4).
4.2.3 e fenestration pattern of an addition should generally match that of the
existing residence.
• Use a surface-to-void ratio of windows and wall space that continues the
pattern found on the original residence.
• Design a window pattern to match the residence’s existing hierarchy of
windows—considering the different sizes and heights that occur on different
levels.
• Construct new windows at an addition with materials (preferably wood)
and sash configurations that are compatible with, although not necessarily
identical to, those on the original residence.
77GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
4.2.4 An eort should be made to dierentiate an addition from the original
building.
• Differentiation is an important preservation principle that allows historic
fabric to be distinguished from new, in order to avoid creating a false sense
of historical development. New construction should not be radically different
in style or materials; however, minor differences can be used effectively to
distinguish new from old.
• Prioritize differentiating the architecture of an addition in some way, rather
than matching the original residence so closely in materials and style that
the addition could be mistaken as historic in its own right.
• Consider using siding materials and decorative features for an addition
that have a subtly different profile, dimensions, or spacing pattern than the
historic residence. A common technique for differentiation is to use similar,
but simplified, decorative details at the addition, which would allow the
addition to read as subordinate to the historic building.
• Where a new addition has the same number of stories as its attached
residence, consider placing the addition’s eave heights slightly lower to
indicate the beginning of new construction and to indicate the primacy of
the original residence.
• Keeping compatibility in mind, avoid designing an addition with an
architectural vocabulary that contrasts strongly to the primary residence for
the sake of differentiation.
• Do not attempt to differentiate an addition simply by using a contrasting
paint color scheme. New colors and accent schemes should be compatible
with those used on the original residence.
78 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
4.3 New Dormers and Second-Story Additions Should Be Designed
to Be Compatible with the Character of the Original Residence.
Roof dormers are commonly seen in Professorville and were originally designed
to allow light and additional room into upper levels that are located within the roof
form of a residence. New dormers would therefore be generally compatible with
the neighborhood’s historic qualities and should be designed to enhance the
historic scale and character of residences.
4.3.1 New dormers should be scaled so as to retain the predominance of the original
roof form and the overall character of the neighborhood.
• Scale new dormers appropriately so that they do not overwhelm the primacy
of the historic roof. The original roof form should be plainly visible after the
dormer is in place. New dormers would be inappropriately large if they span
from end to end of the original roof slope or if they reach from eave to ridge.
• Center a newly constructed dormer on its roof slope, reflecting the character
of Professorville’s early residences.
• It is acceptable to introduce more than one dormer on a single roof slope if
they are spaced evenly and do not visually crowd the roof.
Constructing an appropriately scaled roof dormer can be an effective strategy to create livable space within a roof form, in keeping with the neighborhood's historic character.
79GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
4.3.2 e architectural character of a residence should guide the design of a new
dormer.
• Choose a dormer’s roofing and cladding materials, as well as distinctive
features like exposed rafter tails, to reflect the character of the original home.
• It is not necessary to design new dormers with roof forms that match the
overall roof of the residence. A shed-roofed dormer is appropriate to a side-
gabled residence, for instance.
• Employ minor differences in materials and features to indicate that the new
dormer is not original to the residence.
4.4 A Residence Should Not Be Lifted or Moved on Its Lot Such
that Its Historic Spatial Relationships are Changed.
A historic building’s location on its lot and its spatial orientation and relationships to
other nearby properties are important aspects of a building's historic character and
the district as a whole. Lifting or moving a residence can change its overall scale and
visual impression, as well as its relationship to its neighbors, which can affect the entire
neighborhood.
4.4.1 Early residences in Professorville should remain at their historic elevations and
heights.
• If a new foundation must be constructed, attempt to construct it so that the
existing home remains at the same elevation. If the new foundation will be
visible, use exterior materials that are compatible with the character of the
building.
Raising a residence onto a substantially taller foundation may bring it visibly out of scale with its neighbors. Pay attention to the heights of surrounding floor levels and rooflines.
80 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• If a historic residence is raised, avoid impacting its floor, eave, and roof
ridge heights such that they would be out of keeping with its character and
surrounding homes.
• If raising a home requires alterations to an existing entry or porch (i.e.,
replacing an existing landing or run of steps), retain historic materials
whenever possible, and take care to design alterations to be compatible
with the historic character of the home.
4.4.2 Early residences should remain in their historic locations unless practical
considerations necessitate relocation within their lots. If moved, a home’s
character-dening orientation and setting should be maintained.
• Avoid moving an early residence within its lot, as a building's original
location contributes to its integrity. Justification for moving a building should
be based on practical hardship rather than preference.
• If an early building is to be moved, it should not be moved to a different area
of its lot; rather it should be kept in the same general area (i.e. avoid moving
a building from the front to the back, or vice versa). Also, avoid moving a
building so that it would encroach upon characteristic landscape features
or other buildings.
• Avoid turning a residence on its lot so that its front façade is oriented in a
different direction than it was historically, as this breaks a property's historic
association to its neighbors and its streetscape.
• An early residence should remain on the lot upon which it was constructed.
81GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT
4.5 Demolition of Historic Features and Volumes on an Early
Residence Should Be Avoided.
Selective demolition in order to accommodate new additions should be planned carefully
to avoid significant impacts to the building’s historic integrity. Whenever possible, elect
instead to make alterations in areas where change has already occurred (see 4.1.3).
4.5.1 Selectively demolishing character-dening features and volumes diminishes
the overall historic character of a home and should be avoided.
• Avoid demolishing historic features that define the character of a residence,
in particular those located on the front and those that can be seen from the
street.
• Demolishing features located at the rear of a residence is generally less
impactful, and therefore a more acceptable option, than demolition at the
front or sides, which are typically visible from the public right-of-way.
4.5.2 Existing additions and alterations that occurred during Professorville’s early
period of development (through the 1930s) may contribute to a residence’s
historic character.
• Whenever possible, avoid demolishing additions that date to the
neighborhood’s historic period, as they can provide a physical record of
historic development patterns in the neighborhood.
• Not every older addition or alteration is character-defining. Consult with
preservation professionals regarding the relative importance of any particular
historic addition or alteration to an original residence.
The upper dormer on this home was an early intervention and should not be considered to detract from the overall historic character.
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Guidelines for Altering or Adding to
Residences from Later Periods of
Development (1930s-Present)
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87GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT
5. Guidelines for Altering or Adding to Residences from Later
Periods of Development (1930s-Present)
The first wave of development in Professorville came to a close during the 1930s, and
subsequent home construction in the neighborhood introduced new architectural styles
and materials. In certain ways, more recently constructed buildings contrast with the
earlier homes of the neighborhood: they were built with mass-produced and/or more
affordable materials, and they were designed when automobiles—and thus residential
garages—had become even more ingrained in the lives of many Americans. Although
constructed during Professorville’s later period of development, postwar residences also
contribute to the surrounding streetscape. Regardless of materials and architectural
style, most later residences bear a relationship to their older neighbors and respect their
defining scale and features. Whereas the guidelines contained in Chapter 4 focused
on strategies to maintain the integrity of the earliest properties—which are the most
important in conveying the district’s historic character—this chapter offers a parallel
set of guidelines that are more general in nature. Their purpose is to guide changes to
later residences while minimizing the impact of changes on the overall character of the
district.
88 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
5.1 Alterations to Existing Materials and Features Should Be
Planned So As Not to Detract from the Overall Aesthetic
Patterns of the Historic District.
Later residences located within the boundaries of Professorville are usually
visible as such: they have distinctive house forms and cladding materials that
easily distinguish them from the earlier residences around them. It is appropriate
to maintain the newer homes as they exist, but proposed alterations should be
planned so that they do not create a new visual impact on the district.
5.1.1 Modern materials and features should be compatible with, yet dierentiated
from, the historic character of the district.
• Retain types of roofing and wall cladding that relate to the materials and
textures found on earlier houses, as well as to the neighborhood’s rustic
feeling. These may include modern wood shingles and board-and-batten
siding. While stucco is historically present, it is not predominant in the district.
• Avoid new cladding or roofing materials that are not already used in
Professorville, such as stone veneer.
• Do not install synthetic cladding materials, such as vinyl or aluminum, on
any residence in Professorville.
• If doors and windows are replaced, select the new to have simple
arrangements. They should also be sized compatibly with the windows
found on surrounding residences.
Some newer residences are clad in wood shingles, reflecting Professorville's historic material palette. Retaining these shingles would help to relate homes from different eras within the district.
89GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT
5.1.2 Modern-style buildings have their own distinctive types of materials and
features and should not be altered with period-inappropriate elements.
• Do not add decorative features to a newer residence simply because they
are characteristic of early homes elsewhere in the neighborhood, as this can
create a false sense of historical development in the district.
5.2 Additions to Later Buildings Should Have As Minimal a Visual
Impact As Possible and Should Respect Neighboring Residences.
While not historically significant within the context of Professorville, later residences
can still contribute to the district by conforming to the historic rhythms of the
streetscape. Any changes in massing and form should be planned so that they
continue to support the regular rhythm of houses that defines the neighborhood’s
visual character.
5.2.1 New additions should be placed on their lots and scaled to be as unobtrusive as
possible.
• Design and site a new addition that supports the surrounding streetscape
pattern; placement at the rear of the building rather than facing the street is
strongly encouraged.
• Design an addition that is of an appropriate scale and height to the residence
and its neighbors. The addition should not change the massing of the
residence so that it is incompatible with surrounding historic homes.
As with historic residences, additions to more recent homes should be recessed from the front façade to strengthen Professorville's overall streetscape pattern.
90 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• If planning to build an attached garage space, consider the overall visual
impact. Avoid a new attached garage that is visible at the front of a residence,
which would not be in keeping with Professorville's historic pattern of
detached garages located at the backs of lots. An attached garage would
preferably be side-facing and set behind the primary volume of the house.
5.2.2 An addition should be designed with an architectural vocabulary that is both
appropriate to the main residence and relates to surrounding older homes.
• The roof form of an addition should resemble and/or continue the roof form
of the original residence.
• Explore cladding and roofing materials that are similar to those of the original
residence, but are differentiated slightly in size or profile. While differentiation
may be less important of a concern for more recent residences than for
older residences, this strategy is typically encouraged.
• Windows on an addition may be of the same material as windows on the
original residence, and should relate to the character of nearby older
residences in terms of scale and spacing.
• Consider constructing a front porch if a residence does not already have
one, in keeping with the style and period of the house. This type of feature
can relate newer buildings to Professorville’s earlier homes.
• Paint colors chosen for a new addition should relate to the original residence
and should be compatible with the appearance of surrounding historic
homes.
91GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT
5.2.3 A second-story addition will likely be visible from the street and could change
the appearance of a residence. Such an addition should be carefully designed to
enhance the historic qualities of the neighborhood.
• Design a second-story addition with the goal of minimizing its visual bulk.
Utilize sloping roofs and overhanging eaves to mitigate bulk.
• Avoid "stepping back" upper stories, which would result in a complex volume
that is not characteristic of homes in the neighborhood, which typically have
strong, unbroken façade planes.
5.3 Lifting or Moving a Later Building on Its Lot Should Not
Interrupt the Overall Streetscape Pattern of the Surrounding
Area.
Professorville’s more recent homes are visually related to their neighbors and should
not be substantially lifted or moved if this would affect the consistent character of the
streetscape. The original location of a later residence on its lot, however, is not necessarily
an important consideration to the district’s historic significance.
5.3.1 A later residence should not be raised above its existing height if this action
would change the height and perceptible scale of the building to be larger than
its neighbors.
• If considering whether to raise a house or alter the level of a foundation, pay
attention to the floor, eave, and roof ridge heights of neighboring homes.
Strive for compatibility with the surrounding streetscape.
92 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
5.3.2 A later residence may be moved on its lot if it supports or enhances the
district’s historic streetscape pattern.
• Relocate a residence so that its new location and orientation are consistent
with the setbacks, side-to-side spacing pattern, and street-facing orientation
that characterize the neighborhood.
5.4 Special Note: Potential for Individual Historic and Architectural
Signicance Outside of the District Context
It is possible that buildings in Professorville constructed during the later
development period could be determined to have individual historic or
architectural significance. Properties may become eligible for historic register
listing, if a good case for their significance exists. This means that later buildings in
Professorville—while not strictly contributing to the historic district’s significance—
could potentially be considered historic resources on the basis of their own
individual architectural designs or historical backgrounds. Residents who plan
to alter a later building that is found to have individual historic significance should
explore project options that would preserve architectural forms and features that
convey significance. These guidelines do not address design compatibility for
later properties that are architecturally or historically significant.
The modest cottages making up Kingsley
Court were constructed after the first wave of
development of Professorville, but they were
designed by Birge Clark, an important Palo Alto
architect. Keep in mind that later buildings in the
neighborhood may have their own grounds for
historic significance.
Guidelines for Designing and Building New
Residences
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97GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
6. Guidelines for Designing and Building New Residences
While most lots within Professorville are currently built out, construction of new residences
in Professorville may occur if and when larger lots are subdivided and further developed,
detached secondary dwelling units are built on existing lots, or an existing non-historic
home is replaced. As opportunities for new residential construction arise, it is critical
to design new buildings to be compatible with the neighborhood’s early residences,
yet also differentiated in some way in order to continue the physical record of historical
development in the district. The most important considerations for compatibility include
site placement, general form and massing, size and height, and fenestration patterns.
Designing a home that takes into consideration these aspects of the historic character of
surrounding homes would ensure that the overall appearance and feeling of Professorville
remain distinguishable.
98 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
6.1 New Construction Should Avoid Demolition of Existing
Buildings.
New construction is anticipated in Professorville. However, existing residences
should not be viewed as opportunities for demolition and new development.
Most existing residences are complementary to the character of the district, even
though not all residences in the district are historic contributors or date to its early
period of development. Demolishing and replacing an existing residence can be
disruptive to a historic, established streetscape.
6.1.1 Do not demolish an early residence.
• The early homes of Professorville, constructed between the 1890s and
1930s, are the critical components of the historic district. Demolishing an
early residence would adversely and permanently affect the district.
• In the case of an early residence that is heavily altered or damaged, attempt to
rehabilitate and/or repair it rather than pursuing demolition and replacement.
99GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
6.1.2 Avoid demolishing later residences that are complementary to the district.
• While they are not necessarily important to the historic integrity of the
district, some properties constructed after the 1930s provide compatible
architectural background for the historic contributors. Be cognizant of how
existing later residences fit into and reinforce historic development patterns,
and retain wherever feasible.
• Later residences that are not compatible with the character of the district
may be candidates for demolition and replacement, provided that the new
construction is compatible with the district.
• Please note that even later buildings could potentially have individual
significance that is unrelated to the district (see 5.4).
6.1.3 Attempt to construct new residences without removing existing residences.
• Seek out opportunities to subdivide existing large lots into new developable
lots.
• Take advantage of opportunities to construct detached secondary dwelling
units on existing lots.
100 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
6.2 New Residences and Accessory Buildings Should Be Sited
Within eir Lots to Reect Professorville’s Historic
Development and Streetscape Patterns.
New residences in Professorville should support the broader visual character
and texture of the neighborhood. An important step is selecting a location on the
lot that continues the overall cadence of houses on the surrounding block.
6.2.1 A new residence should be placed on its lot with a similar location, setback,
and orientation as nearby residences in Professorville, which typically follow
historic patterns.
• Place a new residence within its lot (setback and side-to-side spacing) to
follow the general pattern of homes on its block, in order not to interrupt
the continuous streetscape pattern. A new home’s setback from the street
should be within the range used on surrounding residences.
• Always orient a new residence with its primary façade facing towards the
street.
When siting a new residence, pay attention to the setbacks of surrounding homes.
101GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
6.3 Proposed Residences Should Be Designed to Match the Scale,
Massing, and General Form of Older Residences.
The earliest homes in Professorville are distinguished by their relatively simple
forms, controlled scale, and strong front façade planes. These characteristics
should guide future construction so that new homes are human-scaled and have
a visual presence that is appropriate to the neighborhood.
6.3.1 e size and height of a new residence should reect Professorville’s early
homes in order not to look out of place within the neighborhood.
• Generally speaking, design a home that is similar in scale to surrounding
early residences. Attempting to maximize the allowable floor area on a lot
may not result in a house size that is most compatible with Professorville’s
historic character.
• Set the heights of the foundation, floor levels, eaves, and upper roofline on a
new residence to be similar to the heights of those features on neighboring
houses.
102 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
6.3.2 e massing and form of a new residence should be carefully planned to avoid
perceived bulk that is incompatible with the neighborhood streetscape.
• Design a new residence that is solidly massed with simple volumes, reflecting
the forms of Professorville’s earlier homes. Rather than using unconventional
massing, explore other strategies to provide visual interest.
• Maintain a strong sense of the front façade plane, and do not include volumes
projecting forward from it. Front porches are one important exception.
• Consider designing the upper story of a residence to be contained within
the roof form (i.e., a one-and-one-half-story residence), where this pattern is
seen on surrounding historic residences.
• Consider accommodating additional interior space through a rear wing that
is not immediately visible from the street. This strategy would manage the
perceived bulk and visual impact of a new residence while meeting the
needs of occupants.
When designing a new residence, strive to match the massing of immediately surrounding homes. While the neighborhood contains a mixture of house types and scales, compatibility will be best achieved when cues are taken from neighboring residences. Visual bulk could be managed by placing an upper story within the roof form, where neighboring residences use a similar strategy.
103GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
Simple roof forms that have precedence within Professorville are better suited to the neighborhood than roofs with many intersecting slopes.
6.3.3 A new residence should have a relatively simple roof form that references
the forms found elsewhere in the neighborhood. e roof should be sized to
complement the building’s proportions, not complicate them.
• Select roof forms that are relatively simple and have precedence within
Professorville. Do not design roofs that have many intersecting slopes, are
flat, or have a form that is not found elsewhere in the neighborhood.
• Consider including dormers in the roof design for a new home. Gabled,
hipped, and shed-roof dormers are all appropriate to Professorville.
• If a two-story residence is planned, design the roof with a low pitch to reduce
overall height and visual bulk.
• Break up an expansive, blank roof slope, particularly those facing the street,
with dormers that complement the appearance of Professorville's early
homes.
104 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
6.4 e Architectural Style of a New Residence Should Be
Compatible with the Character of Early Houses in Professorville.
The architectural style of a residence connects the various aspects of its
visual character, including roof form, materials, and decorative features. The
textured visual character of Professorville is supported in part by differences in
architectural style, so no particular styles are mandated for new construction.
A degree of variation is highly encouraged. At the same time, new residences
should relate to the influence of surrounding residences. As with new additions
to early residences, “compatible yet differentiated” is an important principle that
should guide architectural designs.
6.4.1 New residences should be compatible with historic architectural inuences
that are already found in the neighborhood.
• Consider historic style precedents within Professorville when planning a new
residence. Common styles in the neighborhood—such as First Bay Tradition/
Shingle Style, Colonial Revival, Prairie School, and various Eclectic Revival
styles—are appropriate influences for new construction. No one particular
style is mandated.
• If a contemporary house design is desired, strive to blend it in with the
neighborhood’s existing aesthetic patterns and residential forms/massing.
New residences within Professorville can relate to the district's historic homes using compatible architectural styles. Contemporary architectural styles can also be used successfully, keeping in mind the general form and materials of earlier homes.
105GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
• Do not design a residence in a generally historicist style that does not have
precedents in the neighborhood.
• Consider using wood shingles or clapboard siding, as well as elements like
bay windows, belt courses, and eave brackets, as a way to relate a new
residence to the character of Professorville’s early homes and styles.
• Choose stucco for exterior walls if a Spanish Colonial or Mediterranean
influence is desired. In these instances, rounded clay tiles would be the
appropriate roof covering.
• Explore using materials that repeat the texture and visual impression of those
found on historic Professorville homes. Brick and stone are seldom found on
older homes in Professorville.Avoid designing a new residence with a contemporary architectural style that involves massing, roof forms, materials, and window patterns that are not compatible with the historic character of Professorville's early homes.
106 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
6.4.2 Choose strategies that dierentiate new construction from the neighborhood’s
early residences.
• Differentiate a new residence from its older neighbors, even when drawing
on Professorville’s historic styles. Subtle differentiation strategies are
encouraged.
• More noticeable differentiation with modern materials may be possible if the
scale, roof forms, and perceived massing of a proposed residence still reflect
the basic character of surrounding homes. The balance of “compatible yet
differentiated” should be achieved.
• If a new residence is constructed on a lot that has been subdivided from a
larger lot, take heed to retain the primacy of the original house on the lot.
This can be accomplished through a modest scale and more restrained use
of architectural features.
6.4.3 Paint and stain colors for the exteriors of new homes should generally be
compatible with historic homes in Professorville.
• Aim to select colors for the exterior of a residence that are compatible with
the historic character of the district.
• Muted colors are encouraged for the primary exterior walls, with contrasting
accent colors selected for decorative elements and trim.
• Avoid selecting colors or reflective sheens that contrast sharply with nearby
buildings.
107GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES
6.5 e Entrances and Fenestration Patterns of New Residences
Should Be Designed to Connect a New Residence to the
Established Visual Character of the Neighborhood.
Doors and windows are key elements that establish the human scale of a
residence. The traditional patterns of window and door openings in Professorville
should remain important influences while a new residence is being designed.
6.5.1 Doors and porches should relate directly to the public realm and support the
historic character of the streetscape.
• Always place the primary entrance on the front façade, facing the street.
• Select door types that are compatible with the house style and overall
character of the neighborhood.
• Consider incorporating a first-story porch into a new house design, reflecting
the majority of early homes in Professorville. These features are welcoming,
and they allow an understandable progression from the public realm of the
neighborhood into the private space of the home.
• If a porch design is being developed, select a roof form that relates to the
roof of the overall residence. Porches can also be recessed behind the front
façade plane, if appropriate to the new house design.
• Include additional stylistic elements, such as exposed rafter tails, in a porch
if they relate to the architectural style of the residence.New residences in Professorville can use front porches effectively to reflect the character of historic homes in the neighborhood.
108 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
New residences should not be designed with surface-to-void ratios that contrast strongly with their historic neighbors within Professorville.
• Avoid double-height entrance features that accentuate the height of the
residence and are out of scale with the entrances found on surrounding
houses.
• Avoid two-story porches in new residential designs, as they did not exist in
Professorville in the past.
6.5.2 Window types and arrangements on new construction should reect
traditional patterns within Professorville.
• Arrange windows so that a new residence has a surface-to-void ratio (i.e.,
amount of glazing in relation to walls) similar to that of early homes in the
neighborhood.
• When feasible, select wood-sash windows with lite configurations that are
compatible with windows found elsewhere in Professorville.
• Design the fenestration pattern so that there is an understandable hierarchy
of window sizes and/or types from the base of the house to the top. Avoid
window types, sizes, and locations that appear randomly assigned.
• Avoid oversized windows that are out of character with the house and the
neighborhood.
Guidelines for Site Improvements:
Landscape, Accessory Buildings, and the
Streetscape
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113GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
7. Guidelines for Site Improvements: Detached Second Units,
Accessory Buildings, Landscape, and Streetscape
The guidelines in this chapter address the historic qualities of the Professorville Historic
District's landscape, streetscape, and accessory buildings, which complement the
architecture and character of the neighborhood's historic residences. Those who live
in and travel through Professorville recognize that the neighborhood is not simply a
collection of private homes: its distinctive historic and aesthetic characteristics are also
supported by a generous tree canopy and plant life, fences and other yard features,
walks and drives, and accessory buildings like carriage houses and garages. All of
these elements contribute to the textured and shaded impression that distinguishes the
neighborhood. The landscape of Professorville is part of the public realm, and it can
be experienced and enjoyed by all who enter the neighborhood. For this reason, the
guidelines in this chapter focus on the overall character of the neighborhood that can be
seen from public areas, specifically its streetscape and pattern of front yards.
The aim of this chapter is to provide guidance to property owners, as well as to the City
of Palo Alto, regarding the landscape features and materials that are located among
Professorville’s houses and alongside the neighborhood’s roadways. While the quality of
the streetscape is addressed in earlier chapters (for instance, the appropriate placement
of houses within their lots), this chapter provides recommendations specifically for site
features, plant materials, and circulation patterns. Property owners should refer to
these guidelines when they consider making substantial changes to their yards, trees,
114 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
accessory buildings, and paved areas, to ensure that their proposed plans enforce the
neighborhood’s historic character. Guidance is also provided for the City of Palo Alto,
so that potential changes to Professorville's public infrastructure can be developed with
the historic character of the neighborhood in mind. The ultimate goal of these guidelines
is to preserve and enhance Professorville’s experience and overall historic character
for the neighborhood’s residents, pedestrians, and bicyclists who experience it on a
recurring basis.
115GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
The open, planted quality of many front yards in Professorville is an appropriate model for new landscaping.
7.1 Professorville’s Historic Pattern of Yards and Plantings is a
Critical Component of the Neighborhood’s Visual Character and
Should Be Maintained.
Natural features are found in every corner of Professorville. Yards and parking
strips are the visible open spaces of the neighborhood, acting as connective tissue
between the residences. The varied yet consistent character of the landscape
includes diverse yard types, plantings, and tree species that contribute to the
historic feeling of the district as much as its individual buildings. Large native
trees visible to the street are considered to be of high value.
7.1.1 Lot grades and ground cover should generally be consistent with the
neighborhood’s historic character.
• Maintain a generally flat grade in front yards. Do not introduce berms or
other distracting features that can be seen from public areas.
• Preserve predominant areas of openness in front yards to reflect the historic
character of the neighborhood’s landscape.
• To prepare for possible drought conditions, explore xeriscaping options that
use low, water efficient plants to convey a lush character.
• Avoid installing synthetic ground coverings in residential yards, as they do
not sufficiently replicate the appearance of natural turf. Instead, consider
using permeable surfaces comprised of natural materials (i.e., stone, gravel,
pavers) in order to reduce water usage.
116 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
7.1.2 Fences, hedges, and other boundary features should be appropriately designed
and scaled to convey a visual progression from public to private space and to
preserve Professorville’s historic landscaping patterns.
• Recognize that yards in Professorville have historically supported a visual
progression from public to private space. In addition to delineating private
property lines, fences and hedges have historically allowed a visual
relationship between private residences and the public sidewalk and street.
• Attempt to retain wood fences and hedges that follow the boundaries of front
and side yards, including along the public sidewalk. These features mark
the boundaries of private property and support the neighborhood’s idyllic
character.
• Where a new fence or hedge is required, choose a configuration and materials
that are compatible with the style of the property and the neighborhood’s
historic precedents. Low and visually permeable boundary features, such
as wood picket fences, are strongly recommended alongside the public
sidewalk.
• Avoid tall and visually impenetrable fences and hedges surrounding front
yards, which can limit visual access to the architecture of the district.
• Do not install fences made of metal chain link, plastic, or other materials that
are incompatible with the neighborhood’s historic character.
• Stucco-clad walls may be appropriate if chosen to match a residence that
has stucco cladding, but these walls should remain low. Fences or hedges
with a more permeable visual character, however, are preferred.
Low fences and hedges are both good strategies to delineate front yards while allowing a visual relationship to public areas.
117GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
For additional information:
City of Palo Alto Tree Technical
Manual (City of Palo Alto), http://www.
cityofpaloalto.org/civicax/filebank/
documents/6436
“Urban Canopy” (City of Palo Alto),
http://www.cityofpaloalto.org/services/
sustainability/trees.asp
“City Tree Regulations” (Canopy),
http://canopy.org/about-trees/trees-in-
palo-alto/city-tree-regulations/
Professorville's historic leafy character should be preserved through sensitive treatment of trees.Source: Stanford University Historical Photograph Collection
• Gates of pedestrian scale may be incorporated into the front fence at
walkways, but avoid elaborate gate or trellis designs that may visually
compete with the residence, including at vehicle entrances.
• If it is determined appropriate for residences alongside Embarcadero Road
to have taller and/or solid fences, in order to reduce the visual and audible
impacts from automobile traffic, use materials and construction techniques
that are consistent with the character of the district.
7.1.3 Trees should be maintained to convey the neighborhood’s existing leafy setting
whenever possible.
• Attempt to retain mature trees where they occur in private yards, unless
proven to be unhealthy, as they contribute to Professorville’s overall tree
canopy. The oldest trees, including native live oaks and redwoods, have
been retained for over a century during the growth of Professorville.
• When a new building addition, accessory building, or residence is planned,
take into account the location of mature trees on the lot during project
planning. Avoid removing these trees when feasible.
• Where front and rear yards lack trees, consider introducing new trees to
reinforce the urban forest. Use native and regionally appropriate species.
• Consult with City staff with questions regarding tree health, appropriate tree
species, safety issues, and protected tree regulations.
118 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
7.1.4 Planting beds along house foundations are common features in Professorville
and should be retained when possible.
• Introduce shrubs and other ornamental plantings within beds lining house
foundations, and retain where they already exist. This strategy supports the
neighborhood’s rustic character and enforces the existing pattern of edges
and spacing between homes.
7.1.5 New site improvements that could aect historic landscape patterns should be
placed so as to be minimally visible from the public right-of-way.
• Place air conditioning units, generators, and features that require excavation
(such as window wells and basement stair wells) within a lot where they
are not immediately visible from the public sidewalk and street. The best
location for these features is at the back of a residence.
• If located at a side façade, place excavated features and mechanical
equipment at the rear half of the residence, away from the front of the
property. Investigate planting schemes that screen these elements from
public view.
7.1.6 Residents of older properties in Professorville are encouraged to research
historic landscaping patterns that are period appropriate to their homes.
• Where interest exists, conduct research on planting schemes, species, and
circulation patterns that were used for residences in the Palo Alto area during
the late nineteenth and early twentieth centuries. This research can inform
future landscaping plans at historic residences, if desired, that enhance the
historic character of Professorville. See Chapter 2 for additional information
on historic residential landscape design.
Side yards are typically visible from public areas and contribute to the character of Professorville. The visual impact of mechanical equipment and other distracting elements in these locations should be minimized.
119GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
Ribbon driveways offer an effective way to provide automobile circulation within a property while minimizing visual impact.
7.2 Driveways, Walkways, and Other Paved Elements Should Have
As Little Visual Impact on the Overall Landscape As Possible.
Paving is often viewed as a functional circulation feature, but it may affect a
property’s landscape character and relationship between house and street. As
modest walkways and one-car-width driveways are historic features within the
neighborhood, new paving should ideally have a similar, minimal visual impact.
If a paved surface is too expansive, the neighborhood’s pedestrian-centered
experience will be diminished.
7.2.1 e location, size, and materials of a driveway should be carefully selected in
order to preserve the broader visual patterns of the neighborhood.
• Retain existing one-car driveways (approximately 8’ or 10’ wide) where they
currently exist.
• Where a new driveway is required, attempt to locate it alongside one edge
of the lot. It should preferably be of single-car width until it approaches a
detached garage or other designated parking space, where it may widen
out.
• Consider driveway materials and configurations that decrease surface runoff
and minimize visual impact. Ribbon or “Hollywood” driveways (two strips of
concrete), permeable brick paving patterns, and turf blocks are all effective
options that are already found in Professorville.
120 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
• Explore alternatives to monotonous patterns of paving such as poured
concrete. Choose materials that promote a degree of visual variety, and
consider options that offer differences in paver coloration and size. Brick is
particularly encouraged.
• Be mindful of the visual impact of semicircular approach drives or other
additional areas of paving. Introducing such an element would be appropriate
if proven to reflect a property's historic conditions.
7.2.2 In Professorville, private walkways have often been located at the center of
front yards to allow direct access between a residence’s front entrance and the
sidewalk. Walkways of this type support the visual progression between public
and private spaces and should be maintained.
• Attempt to maintain existing walkways that have a low visual impact on the
front yard.
• In cases of new residential construction or landscape design, plan a new
walkway that directly connects the public sidewalk and the front entrance.
Straight walkways that are perpendicular to the public sidewalk are preferred,
in keeping with historic precedents.
• Consider paving materials that are found elsewhere in the neighborhood
and provide a degree of visual variation, such as brick or flagstone.
• Use connecting or secondary walkways located along the front façade of a
residence to provide access between the front entrance and the driveway,
garage, or other parking area.
Narrow brick walkways provide visual interest to front yards without creating a monotonous paved surface.
121GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
7.2.3 Ramps or lifts, where required, should be designed to be compatible with the
historic character of a residence, to the degree that is feasible.
• When planning to add an access ramp or lift, consider issues like visual
impact, removability in the future, and whether character-defining features
are affected.
7.2.4 Patios placed within a front yard are discouraged, as they often involve paving
and other features that interrupt the historic character that is desired for front
yards in Professorville.
• Attempt to place patios to the side or rear of a residence where possible,
to support the open character of Professorville's front yards and the visual
progression of landscape to streetscape.
• If a patio is placed to the front of a residence, strive to use permeable pavers
or other materials that reduce the visual impact of the patio surface. Avoid
enclosing front yard patios with low walls or fences.
122 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
7.3 e Rehabilitation and Construction of Garages and Other
Accessory Buildings Should Be Planned in Order to Enhance the
Historic Character of Professorville.
Accessory buildings such as carriage houses and automobile garages have
existed throughout Professorville since the neighborhood's earliest years.
Whether historic or recent, these types of buildings are important components
of their properties: they contribute to the neighborhood's pattern of site layouts,
and they convey the neighborhood’s historic development. They also provide
opportunities for growth and development in Professorville. Existing accessory
buildings can be converted for other purposes while retaining historic character.
New secondary dwellings are also encouraged in locations where they support
the neighborhood's overall streetscape pattern. Secondary dwellings warrant
sensitive planning.
7.3.1 Historic accessory buildings such as garages and carriage houses are important
components of early properties and should be preserved whenever possible.
• Always make an effort to retain historic accessory buildings and to rehabilitate
them sensitively if a new use is desired.
• When a rehabilitation project is pursued, retain the building’s original form,
materials, and character-defining features to the highest degree feasible.
These historic elements will help relate the building to its associated
residence. (Refer to Chapter 3 for appropriate guidance on treating the
features and materials of a historic accessory building.)
Historic garages and carriage houses are important elements of their properties and should remain in use where possible.
123GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
• If possible, retain the existing automobile or carriage door to allow the
building to convey its original purpose.
• Avoid moving an original garage or carriage house within the lot such
that it would alter its spatial and functional relationship with its associated
residence. However, moving a historic building is always preferable to
demolishing it or making incompatible alterations.
7.3.2 New accessory buildings and secondary dwelling units within Professorville
should be placed at the rear of lots so as not to distract from the existing
pattern of homes in the neighborhood.
• New livable buildings such as detached offices and secondary dwelling
units should be placed towards the rear of a lot, preferably in a location that
is not directly visible from the public-right-of-way.
• New garages should be detached and placed at the rear of the lot
whenever possible. This is an important development pattern and defining
characteristic of Professorville, as early homes in the neighborhood were
typically constructed with detached garages at the backs of lots. (If a
new attached garage is considered necessary, see 4.1.1 and 5.2.1 for
appropriate guidance on the placement of new attached garages on early
and later homes, respectively.)
• If an alley is present along the rear boundary of a lot (found within the western
half of Professorville), place the new garage directly adjacent to the alley.
The alley should serve as the primary access route to the garage, as this
was its traditional purpose within the block. Avoid using driveways where
alleys exist.
Detached garages at the backs of lots are preferred for new residences in Professorville, as this pattern was used historically.
124 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
7.3.3 New garages and other accessory buildings should be designed so that they
respect and are compatible with the main residence.
• Design a new secondary dwelling or accessory building to be compatible
with the general architectural character (massing, roof form, materials,
and features) of its residence. Keep in mind that a historic characteristic of
Professorville is the vernacular appearance and architectural simplicity of its
accessory buildings in comparison to the more elaborately styled houses.
• A new secondary dwelling or accessory building should have basic forms,
be one story in height, and be otherwise visibly subordinate to its associated
residence. An accessory building should be scaled so that it cannot be
seen over the roof of the primary residence.New detached garages can be designed with materials and doors that relate to historic residences in Professorville.
125GUIDELINES FOR SITE IMPROVEMENTS: LANDSCAPE, ACCESSORY BUILDINGS, AND THE STREETSCAPE
7.4 Take Into Account Professorville’s Historic Character When
Making Changes to the Neighborhood’s Streetscape and
Infrastructure.
Public infrastructure is closely tied to the quality of Professorville’s streetscape
and public realm. Future changes to Professorville’s infrastructure should attempt
to support the qualities that distinguish the district.
7.4.1 Professorville’s sidewalks, parking strips, and street trees should be maintained
in a manner that enhances the historic district’s streetscape and sense of place.
• Maintain the existing pattern of public sidewalks running parallel to the
neighborhood’s streets, with planter strips located in between. Minimize new
paving in parking strips as much as possible.
• Retain existing street trees that stand in parking strips whenever feasible. If
street trees are removed for any reason, replace them with similar species
and continue the overall spacing pattern seen in the neighborhood.
• Attempt to preserve historic trees that currently encroach into roadways, a
pattern that occurred in Palo Alto around the turn of the twentieth century.
This phenomenon strongly conveys the city’s early development.
• Plan new landscape design to screen utilities elements, such as required
backflow units, using appropriate shrubs or tall clump grass.
Mature native trees have been accommodated throughout Professorville's historic development.
126 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Identification signage has been used in many
historic districts to enhance a sense of arrival and
neighborhood identity.
This curb cut with a tight radius reflects an earlier era of Professorville and could serve as a template for future improvements.
7.4.2 Upgrades to Professorville’s utilities and roadway infrastructure should be
developed with the neighborhood’s historic character in mind.
• Investigate sensitively moving utilities infrastructure, such as power lines,
underground to remove visually distracting poles and wires. Yet, also
consider the potential effects that ground disturbance could have on the
landscape of the neighborhood.
• Design new curb cuts at driveways to repeat the tighter radius of older curb
cuts found in Professorville.
• Plan upgrades to public roadways in a manner that respects the historic
streetscape of the neighborhood as much as possible. Avoid adding new
roadway features that did not exist historically and that may be considered
visually distracting.
• Conduct research in order to identify types of streetlights that may have
existed in Professorville during the early twentieth century, with the possible
goal of replacing the existing streetlights with historically appropriate fixtures.
7.4.3 Public place-making and education strategies should be considered to enhance
the neighborhood’s identity as an important historic district in Palo Alto.
• Consider designing and installing signage in appropriate locations near
district boundaries that announces the Professorville Historic District.
• Investigate a new design for street signs located in Professorville that is
distinguished from the City's Standard street signs, and that would augment
the district's unique sense of place.
Appendices
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131APPENDIX A - GLOSSARY OF TERMS
Cartouche: A decorative relief located
on a façade, often of molded stucco and
representing a shield or crest.
Casement window: A window with the
sash hinged on the jamb (vertical side
member).
Clapboard siding: A siding material
consisting of narrow wood boards
applied horizontally, with the lower edge
overlapping the board below.
Clipped gable: A gable that features a
partial roof slope (hip) that meets the ridge;
also known as a jerkinhead.
Cornice: The common name for the
decorative projecting element at the top
of a façade; commonly bracketed and
located above a frieze.
Dentils: Small tooth-like blocks set in rows
(dentil courses) used in Classical cornices.
Dormer: A minor projection on a pitched
roof, usually bearing a window on its front
face. Dormers can have a variety of roof
forms.
Eave: The lower edge of a roof slope that
intersects with the exterior wall.
Façade: An exterior building face.
Façade plane: The predominant plane at
which the physical features of a façade are
arranged.
Fanlight: A semi-circular or round arched
window located above a door, often with
radiating muntin patterns.
Appendix A: Glossary of Terms
Asphalt composition shingles: Shingles
made from roofing felt coated with asphalt
and mineral granules.
Baluster: Small turned or cut out posts
that form a railing.
Bay window: The common term for a
minor projection containing a window that
extends beyond the surrounding façade
plane.
Belt course: A projecting horizontal
member across a façade or around a
building.
Bracket: A feature that supports, or
appears to support, a projecting element
such as cornice, eave, or window hood.
132 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Fenestration: The physical arrangement
of windows on a building’s exterior walls.
Fixed window: A window sash that does
not move or open.
Gable: The upper area of an exterior wall
that is located between the roof slopes.
Gambrel roof: A roof form characterized
by two roof slopes: one shallower near the
ridge, the other steeper near the eaves.
Half-timbering: Exposed wood framing
infilled with contrasting materials, such as
plaster or masonry. In the Tudor Revival
style, false half-timbering is used for
aesthetic rather than structural purposes.
Hipped roof: A roof form where all sides
slope between the roof ridge and eaves.
Historicist architecture: Architecture that
is heavily influenced by past movements,
sometimes freely interpreted.
Hung sash window: A window in which
one or more sashes move vertically.
Hyphen: A minor volume that connects
two larger volumes.
Infill: New construction located within an
existing, historic setting.
Landscape: The physical and aesthetic
setting of a place, typically defined by
natural features but also incorporating
spatial relationships, views, furnishings,
and circulation routes.
Lite: A piece of glass located within a
window.
Massing: The distribution of a building’s
volume through space.
Muntin: A narrow member that separates
the lites within a window sash.
Palladian window: A window in the form
of a round arch flanked on either side by
narrower rectangular windows.
Parapet: The area of a building’s exterior
walls where they extend above a roof; it
can be flat or stepped/shaped.
Parking strip: The narrow area containing
grass, plantings, or paving that is located
between a roadway and its parallel
sidewalk.
Porch: A component of a building that
shelters a building entrance and contains
occupiable space.
Portico: An exterior structure that shelters
a building entrance; it is differentiated
by a porch because it covers only the
entrance and stoop and does not contain
occupiable space.
Rafter tail: The exterior expression of
a roof structure below the eaves. Rafter
tails are sometimes applied decorative
elements and commonly have shaped or
scrolled ends.
133APPENDIX A - GLOSSARY OF TERMS
Setback: The distance between a property
line and a building, especially at the front
of a lot.
Shed roof: A roof form characterized by a
single slope.
Sidelight: Any window that flanks a door;
typically a tall narrow window that spans
the full height or partial height of the door.
Streetscape: The visual character of a
roadway’s setting, including paving, plant
life, and adjacent buildings and structures.
Stucco: An exterior finish composed of
some combination of portland cement,
lime and sand, which are mixed with water
and applied to a wall in a wet coating and
allowed to dry.
Surface-to-void ratio: The proportional
relationship between solid wall areas and
window/door openings.
Window sash: The overall frame that
contains the glazing and possibly muntins
of a window.
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135APPENDIX B - PROFESSORVILLE PROPERTY DATA
Appendix B: Professorville Property Data
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-28-062 271 Addison Avenue 1896 Vernacular Professorville - Category 4 Professorville - Contributing
120-28-061 281 Addison Avenue 1904 Colonial Revival/ Classical Revival Professorville Professorville - Contributing
120-17-085 301 Addison Avenue 1902 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-002 310 Addison Avenue 1938 Colonial Revival Professorville Not applicable - Local listing only
120-17-084 319 Addison Avenue 1902 Craftsman Professorville Professorville - Contributing
120-18-003 326 Addison Avenue 1907 Craftsman Professorville Not applicable - Local listing only
120-17-083 327 Addison Avenue 1902 Craftsman/ Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-004 342-352 Addison Avenue 1904 Craftsman Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
136 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-005 354-362 Addison Avenue 1896 Queen Anne Professorville Not applicable - Local listing only
120-18-006 370 Addison Avenue 1904 Prairie School/ Colonial Revival Professorville Not applicable - Local listing only
120-18-007 376 Addison Avenue 1904 Craftsman Professorville Not applicable - Local listing only
120-28-059 940 Bryant Street 1900 Colonial Revival Professorville Professorville - Contributing
120-17-087 943 Bryant Street 1904 Colonial Revival Professorville Professorville - Contributing
120-28-060 944 Bryant Street 1902 Craftsman Professorville Professorville - Contributing
120-17-086 951 Bryant Street 1898 Colonial Revival/ Shingle Professorville Professorville - Contributing
120-28-061 960 Bryant Street 1904 Colonial Revival Professorville Professorville - Non-contributing
120-18-001 1001-1005 Bryant Street 1892 Colonial Revival/ Shingle Professorville - Category 2 Professorville - Contributing Frank Angell House
120-29-002 1008 Bryant Street 2001 Neotraditional Professorville Professorville - Non-
contributing
120-29-003 1010 Bryant Street 1903 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-040 1017-1023 Bryant
Street
1893 Colonial Revival/
Shingle
Professorville - Category
3
Professorville - Contributing Augustus Murray
House
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
137APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-29-004 1020 Bryant Street 1902 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-039 1027 Bryant Street 1898 Colonial Revival/ Queen Anne/ Craftsman
Professorville Professorville - Contributing
120-29-005 1028 Bryant Street 1902 Colonial Revival Professorville Professorville - Contributing
120-18-038 1033-1037 Bryant Street 1901 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-29-006 1036 Bryant Street 1920 Colonial Revival Professorville Professorville - Contributing
120-29-007 1044 Bryant Street 1902 Craftsman Professorville - Category 3 Professorville - Contributing Varian House
120-29-008 1052 Bryant Street 1902 Craftsman/ Colonial Revival Professorville - Category 4 Professorville - Contributing
120-18-037 1061 Bryant Street 1899 Colonial Revival Professorville - Category 2 Professorville - Contributing Sun-Bonnet House by Bernard Maybeck
120-29-009 1100 Bryant Street 1903 Craftsman Professorville - Category 4 Professorville - Contributing Kimball Residence
120-29-010 1106 Bryant Street 1997 Neotraditional Professorville*Professorville -
Contributing*
*Contributing property
replaced by new
construction
120-29-011 1116 Bryant Street 1904 Colonial Revival Professorville Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
138 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-062 1121 Bryant Street 1892 Colonial Revival/ Classical Revival Professorville - Category 3 Professorville - Contributing Castilleja Hall; Nardyne Apartments
120-29-012 1130 Bryant Street 1902 Craftsman Chalet Professorville - Category 3 Professorville - Contributing
120-18-061 1135 Bryant Street 1910 Craftsman Professorville Professorville - Contributing
120-29-013 1140 Bryant Street 1903 Colonial Revival Professorville Professorville - Contributing
120-18-060 1143 Bryant Street 1912 Prairie School Professorville Professorville - Contributing
120-29-014 1148 Bryant Street 1902 Craftsman/ Colonial Revival Professorville Professorville - Contributing
120-29-015 1160 Bryant Street 1910 Colonial Revival Professorville - Category 4 Professorville - Contributing
120-20-009 1200 Bryant Street 1908 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-20-008 1201 Bryant Street 1966 Ranch Professorville Not applicable - Local listing only
120-20-007 1225 Bryant Street 1966 Ranch Professorville Not applicable - Local
listing only
120-20-010 1250 Bryant Street 1908 Colonial Revival Professorville Not applicable - Local listing only Historic address 281 Embarcadero Road
120-06-021 1055 Cowper Street 1910 Mission Revival Professorville - Category
2
Not applicable - Local
listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
139APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-06-078 1107 Cowper Street 1997 Neotraditional Professorville Not applicable - Local listing only
120-18-048 1140 Cowper Street 1955 Modern Professorville - Category 2 Professorville - Non-contributing
120-07-044 1211 Cowper Street 1963 Ranch (multi-story) Professorville Not applicable - Local listing only
120-07-043 1225 Cowper Street 1948 Ranch Professorville Not applicable - Local listing only
120-19-005 1236 Cowper Street 1920 Craftsman Professorville Not applicable - Local listing only
120-19-006 1238 Cowper Street 1904 Craftsman Professorville Not applicable - Local listing only
120-07-101 1247 Cowper Street 1928 Spanish Colonial Revival Professorville - Category 1 Individual property listing Norris House
120-19-008 1300 Cowper Street 1958 Contemporary Professorville Not applicable - Local listing only
120-19-009 1312 Cowper Street 1910 Colonial Revival/ Craftsman Professorville Not applicable - Local listing only
120-07-094 1325 Cowper Street 1915 Craftsman Professorville Not applicable - Local
listing only
120-19-010 1330 Cowper Street 1904 Craftsman Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
140 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-07-093 1335 Cowper Street 1904 Craftsman Professorville Not applicable - Local listing only
120-19-011 1336 Cowper Street 1926 Spanish Colonial Revival Professorville - Category 1 Individual property listing Pettigrew House
120-07-092 1345 Cowper Street 1908 Craftsman Professorville - Category 3 Not applicable - Local listing only
120-07-091 1357 Cowper Street 1907 Craftsman Professorville - Category 4 Not applicable - Local listing only
120-19-012 1390 Cowper Street 1937 Tudor Revival Professorville Not applicable - Local listing only
120-19-013 1400 Cowper Street 1924 Colonial Revival Professorville Not applicable - Local listing only
120-08-001 1401 Cowper Street 1901 Craftsman Professorville - Category 4 Not applicable - Local listing only
120-08-058 1415 Cowper Street 1927 French Eclectic Professorville - Category 4 Not applicable - Local listing only
120-08-057 1425 Cowper Street 1903 Tudor Revival Professorville - Category 4 Not applicable - Local listing only
120-20-013 223 Embarcadero
Road
1923 Craftsman Professorville Professorville - Contributing Also addressed as 222
Kingsley Avenue
120-20-012 235 Embarcadero Road 1906 Craftsman Professorville - Category 2 Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
141APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-20-011 251 Embarcadero Road 1906 Colonial Revival Professorville Professorville - Contributing
120-20-025 359 Embarcadero Road 1900 Prairie School Professorville - Category 4 Not applicable - Local listing only
120-19-016 425 Embarcadero Road 1907 Craftsman Professorville - Category 2 Not applicable - Local listing only
120-19-015 427 Embarcadero Road 1907 Craftsman Professorville - Category 2 Not applicable - Local listing only
120-19-014 473 Embarcadero Road 1988 Neotraditional Professorville Not applicable - Local listing only
120-29-044 1101-1103 Emerson Street 1906 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-30-009 1102 Emerson Street 1925 Spanish Colonial Revival Professorville Professorville - Contributing
120-29-043 1111 Emerson Street 1903 Colonial Revival Professorville - Category 4 Professorville - Contributing
120-30-010 1118 Emerson Street 1914 Colonial Revival/ Craftsman/ Prairie School
Professorville - Category 3 Professorville - Contributing
120-29-042 1121 Emerson Street 1908 Colonial Revival Professorville Professorville - Contributing
120-30-011 1128 Emerson Street 1907 Colonial Revival/ English Cottage Professorville - Category 4 Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
142 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-29-041 1129 Emerson Street 1908 Craftsman Professorville - Category 4 Professorville - Contributing
120-29-055 1133 Emerson Street 1976 Contemporary Shingle Professorville Professorville - Non-contributing
120-30-012 1134 Emerson Street 1903 Prairie School/ Craftsman Professorville - Category 4 Professorville - Contributing Elmore Residence
120-29-054 1135 Emerson Street 1975 Contemporary Shingle Professorville Professorville - Non-contributing
120-30-051 1174 Emerson Street 1980 Neotraditional Professorville Professorville - Non-contributing
120-30-052 1176 Emerson Street 1925 Spanish Colonial Revival Professorville - Category 3 Professorville - Contributing
120-20-014 200 Kingsley Avenue 1906 Craftsman Professorville Professorville - Contributing
120-29-056 221 Kingsley Avenue 1901 Colonial Revival/ Craftsman Professorville - Category 2 Professorville - Contributing Fowler Residence
120-20-013 222 Kingsley Avenue 1906 Colonial Revival Professorville Professorville - Contributing Also addressed as 223 Embarcadero Road
120-20-015 252 Kingsley Avenue 1908 Craftsman Professorville Professorville - Contributing
120-29-016 257 Kingsley Avenue 1904 Craftsman Professorville Professorville - Contributing
120-20-016 262 Kingsley Avenue 1908 Craftsman Professorville Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
143APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-059 303 Kingsley Avenue 1963 Ranch Professorville Professorville - Non-contributing
120-18-058 319 Kingsley Avenue 1908 Colonial Revival/ Craftsman Professorville Not applicable - Local listing only
120-69-006* 325-365 Kingsley Avenue 1940 Bungalows Professorville Not applicable - Local listing only
120-20-006 334 Kingsley Avenue 1904 Classical Revival Professorville - Category 2 Professorville - Contributing
120-20-005 356 Kingsley Avenue 1893 Vernacular Professorville - Category 1 Professorville - Contributing
120-20-004 360 Kingsley Avenue 1900 Colonial Revival Professorville Professorville - Contributing
120-20-003 364 Kingsley Avenue 2008 Neotraditional Professorville Contributing (does Not apply to new construction)
120-20-002 374 Kingsley Avenue 1905 Craftsman Category 3 Professorville - Contributing
120-18-050 405 Kingsley Avenue 1929 Spanish Colonial Revival Professorville Professorville - Contributing
120-18-064 425 Kingsley Avenue 1975 Contemporary Professorville Professorville - Non-
contributing
120-19-002 430 Kingsley Avenue 1900 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-063 433 Kingsley Avenue 1899 Colonial Revival Professorville - Category
2
Professorville - Contributing Hutchinson House
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
144 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-19-003 450 Kingsley Avenue 1895 Colonial Revival/ Shingle Professorville - Category 2 Professorville - Contributing Sanford House
120-18-048 457-459 Kingsley Avenue 1914 Tudor Revival Professorville - Category 2 Professorville - Contributing
120-19-004 490 Kingsley Avenue 1923 Spanish Colonial Revival Professorville - Category 3 Professorville - Contributing Blake Wilbur Residence
120-07-001 500 Kingsley Avenue 2000 Neotraditional Professorville Not applicable - Local listing only Also addressed as 1201 Cowper Street
120-06-075 501-505 Kingsley Avenue 1897 Colonial Revival Professorville - Category 2 Professorville - Contributing Fleugel Residence
120-29-045 225 Lincoln Avenue 2013 Neotraditional Professorville - Category 3*Professorville - Contributing**Contributing property replaced by new construction
120-29-034 251 Lincoln Avenue 1904 Colonial Revival/ Craftsman Professorville - Category 4 Professorville - Contributing Charles House
120-18-041 308 Lincoln Avenue 1903 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-042 318 Lincoln Avenue 1904 Colonial Revival Professorville - Category 4 Professorville - Contributing
120-18-036 329 Lincoln Avenue 1900 Colonial Revival
(altered)
Professorville Professorville - Non-
contributing
120-18-035 331 Lincoln Avenue 1900 Colonial Revival Professorville Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
145APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-043 332-334 Lincoln Avenue 1896 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-034 333-345 Lincoln Avenue 1890 Colonial Revival Professorville - Category 2 Professorville - Contributing
120-18-044 356 Lincoln Avenue 1896 Craftsman Professorville - Category 1 Professorville - Contributing
120-18-032 365 Lincoln Avenue 1896 Craftsman/ Shingle Professorville - Category 2 Professorville - Contributing Hoskins-Thomas Residence
120-18-070 381 Lincoln Avenue 1890 Craftsman Professorville - Category 4 Professorville - Contributing
120-18-025 405 Lincoln Avenue 2012 Neoeclectic Professorville Professorville - Non-contributing
120-18-024 409 Lincoln Avenue 1922 Spanish Colonial Revival Professorville Not applicable - Local listing only
120-18-023 427 Lincoln Avenue 1926 Spanish Colonial Revival Professorville Not applicable - Local listing only
120-18-047 436 Lincoln Avenue 1920 Colonial Revival Professorville Not applicable - Local listing only
120-18-022 439 Lincoln Avenue 1929 French Eclectic Professorville Not applicable - Local
listing only
120-18-021 451 Lincoln Avenue 1924 Spanish Colonial Revival Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
146 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-020 467 Lincoln Avenue 1926 Tudor Revival Professorville - Category 4 Not applicable - Local listing only
120-06-080 510 Lincoln Avenue 1930 French Eclectic Professorville - Category 3 Not applicable - Local listing only
120-20-017 305 Melville Avenue 1901 Queen Anne Professorville - Category 3 Not applicable - Local listing only Also addressed as 1251 Bryant Street
120-20-018 311-315 Melville Avenue 1903 Queen Anne Professorville - Category 4 Not applicable - Local listing only
120-20-019 321 Melville Avenue 1902 Queen Anne/ Craftsman Professorville Not applicable - Local listing only
120-20-029 325 Melville Avenue 1961 Ranch Professorville Not applicable - Local listing only
120-20-027 330 Melville Avenue 1900 Vernacular Professorville Not applicable - Local listing only Historic address 345 Embarcadero Road
120-20-028 335 Melville Avenue 1958 Ranch Professorville Not applicable - Local listing only
120-20-026 340 Melville Avenue 1987 Neotraditional Professorville Not applicable - Local listing only
120-20-021 353 Melville Avenue 1900 Colonial Revival/
Vernacular
Professorville - Category
3
Not applicable - Local
listing only
120-20-022 363 Melville Avenue 1904 Queen Anne Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
147APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-19-028 409 Melville Avenue 1901 Queen Anne Professorville Not applicable - Local listing only
120-19-027 433 Melville Avenue 1894 Queen Anne/ Shingle Professorville - Category 2 Not applicable - Local listing only
120-19-021 440 Melville Avenue 1926 Colonial Revival Professorville Not applicable - Local listing only
120-19-022 450-458 Melville Avenue 1983 Neotraditional Professorville Not applicable - Local listing only
120-19-035 465 Melville Avenue 1898 Craftsman Professorville Not applicable - Local listing only
120-19-024 467-469 Melville Avenue 1910 Craftsman (altered) Professorville Not applicable - Local listing only
120-19-007 475 Melville Avenue 1911 Craftsman Professorville - Category 2 Not applicable - Local listing only Huff House
120-19-023 480 Melville Avenue 1958 Contemporary Professorville Not applicable - Local listing only
120-07-045 500 Melville Avenue 1906 Craftsman Professorville - Category 3 Not applicable - Local listing only Stark Residence
120-07-102 541 Melville Avenue 1951 Modern Professorville Not applicable - Local
listing only
120-29-028 1000 Ramona Street 1905 Craftsman Professorville Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
148 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-29-001 1001 Ramona Street 1907 Craftsman Professorville - Category 3 Professorville - Contributing
120-29-028 1004-1006 Ramona Street 1905 Vernacular Professorville Professorville - Contributing
120-29-027 1013 Ramona Street 1908 Vernacular (altered) Professorville Professorville - Non-contributing
120-29-029 1020 Ramona Street 1907 Craftsman Professorville Professorville - Contributing
120-29-026 1021 Ramona Street 1907 Colonial Revival Professorville - Category 4 Professorville - Contributing
120-29-030 1024 Ramona Street 1914 Craftsman Professorville - Category 4 Professorville - Contributing
120-29-025 1029 Ramona Street 1907 Colonial Revival Professorville Professorville - Contributing
120-29-031 1030-1032 Ramona Street 2012 Neotraditional Professorville Professorville - Non-contributing
120-29-024 1037 Ramona Street 1904 Colonial Revival Professorville Professorville - Contributing
120-29-032 1040 Ramona Street 1914 Craftsman Professorville Professorville - Contributing
120-29-023 1047 Ramona Street 1907 Classical Revival Professorville - Category 4 Professorville - Contributing
120-29-033 1048 Ramona Street 1900 Colonial Revival Professorville - Category
4
Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
149APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-29-022 1057 Ramona Street 1906 Craftsman/ Colonial Revival Professorville - Category 4 Professorville - Contributing
120-29-035 1102 Ramona Street 1908 Colonial Revival Professorville Professorville - Contributing
120-29-021 1103 Ramona Street 1904 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-29-036 1106 Ramona Street 1905 Craftsman Professorville Professorville - Contributing
120-29-037 1112 Ramona Street 1905 Craftsman Professorville Professorville - Contributing
120-29-020 1115 Ramona Street 1908 Colonial Revival Professorville - Category 2 Professorville - Contributing
120-29-038 1116 Ramona Street 1902 Craftsman/ Colonial Revival Professorville Professorville - Contributing
120-29-019 1125 Ramona Street 1902 Colonial Revival Professorville Professorville - Contributing
120-29-057 1132-1156 Ramona Street 1910 Craftsman Professorville Professorville - Contributing
120-29-018 1139 Ramona Street 1904 Colonial Revival Professorville - Category
2
Professorville - Contributing
120-29-017 1147 Ramona Street 1906 Craftsman Professorville Professorville - Contributing
120-29-016 1155 Ramona Street 1904 Vernacular/
Craftsman
Professorville Professorville - Contributing
120-18-008 1010 Waverley Street 1922 Craftsman Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
150 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-030 1020 Waverley Street 1902 Craftsman Professorville Not applicable - Local listing only
120-18-031 1022 Waverley Street 1905 Colonial Revival Professorville Not applicable - Local listing only
120-18-071 1050 Waverley Street 1926 Colonial Revival Professorville - Category 4 Professorville - Non-contributing
120-18-046 1101 Waverley Street 1922 Colonial Revival/ Period Revival Professorville Professorville - Contributing
120-18-045 1110 Waverley Street 1993 Neotraditional Professorville*Professorville - Contributing**Contributing property replaced by new construction
120-18-054 1130 Waverley Street 1900 Vernacular/ Rustic Bungalow Professorville Professorville - Non-contributing
120-18-053 1135 Waverley Street 1926 Colonial Revival Professorville - Category 4 Professorville - Contributing
120-18-055 1136 Waverley Street 1893 Colonial Revival Professorville - Category 3 Professorville - Contributing
120-18-056 1146 Waverley Street 1893 Queen Anne Professorville - Category 4 Professorville - Contributing
120-18-052 1155 Waverley
Street
1927 Spanish Colonial
Revival
Professorville - Category
4
Professorville - Contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
151APPENDIX B - PROFESSORVILLE PROPERTY DATA
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-18-051 1177 Waverley Street 1928 Spanish Colonial Revival Professorville Professorville - Contributing
120-19-033 1207 Waverley Street 1904 Colonial Revival (altered)Professorville Professorville - Contributing Historic address 1221 Waverley Street
120-20-001 1220-1224 Waverley Street 1898 Craftsman Professorville - Category 4 Professorville - Contributing
120-19-034 1221 Waverley Street 1993 Neoeclectic Professorville Professorville - Non-contributing
120-20-023 1240 Waverley Street 1905 Classical Revival Professorville Professorville - Contributing
120-19-029 1245 Waverley Street 1902 Craftsman Professorville Not applicable - Local listing only
120-20-024 1248 Waverley Street 1904 Colonial Revival Professorville Professorville - Contributing
120-19-020 1303 Waverley Street 1912 Mission Revival Professorville - Category 4 Not applicable - Local listing only
120-19-032 1321 Waverley Street 1916 Colonial Revival Professorville Not applicable - Local listing only
120-19-030 1327 Waverley
Street
1988 Neotraditional Professorville Not applicable - Local
listing only
120-19-031 1329 Waverley Street 1988 Neotraditional Professorville Not applicable - Local listing only
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
152 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
APN ADDRESS YEAR BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES
120-19-017 1331 Waverley Street 1950 Ranch Professorville Not applicable - Local listing only
120-20-020 334 Whitman Court 1904 Craftsman Professorville Not applicable - Local listing only
120-20-002 373-375 Whitman Court 1905 Craftsman Category 4 Professorville - Non-contributing
Note: In addition to being located in the local historic district, properties may be listed in the City’s Historic Inventory with one of
the following Historic Category designations: Category 1 (“Exceptional building”); Category 2 (“Major building”); Category 3 or
4 (“Contributing building”). Not all contributing buildings in the district are individually designated with a Historic Category in the
City’s Historic Inventory. For more information about Historic Categories, see the Palo Alto Municipal Code Chapter 16.49.
153APPENDIX B - PROFESSORVILLE PROPERTY DATA
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The adjacent map shows the addresses associated with properties located within the boundaries of the Professorville Historic District.
154 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
0
20
40
60
80
100
1980-Present1940-19791930-19391920-19291910-19191900-19091890-1899
The graph on this page displays the number of buildings in Professorville, organized by period of construction. Green bars represent those periods considered to be the early periods of development, while the gray bars represent later periods of development.
155APPENDIX B - PROFESSORVILLE PROPERTY DATA
Colonial Revival; Classical Revival; Craftsman; Queen Anne; Vernacular (1890-1938)
Spanish Colonial Revival; Mission Revival; Prairie; French Eclectic; Tudor Revival (1893-1937)
Bungalows; Ranch; Contemporary; Modern (1940-1976)
Neotraditional; Neoeclectic (1980-2013)
Colonial Revival; Classical Revival; Craftsman; Queen Anne; Vernacular (1890-1938)
Spanish Colonial Revival; Mission Revival; Prairie; French Eclectic; Tudor Revival (1893-1937)
Bungalows; Ranch; Contemporary; Modern (1940-1976)
Neotraditional; Neoeclectic (1980-2013)
This graph displays the distribution of architectural styles and influences in Professorville, organized according to broad groupings of related styles.
THIS PAGE INTENTIONALLY BLANK
157APPENDIX B - PROFESSORVILLE PROPERTY DATA
Index
Accessory buildings (new)
Design, form, and scale 7.3.3
Placement 7.3.2
Additions (historic) 4.5.2
Additions (new) to early residences
Differentiation from original residences 4.2.4
In place of existing non-historic additions 4.1.3
Lot placement 4.1.1
Massing 4.2.1
Materials (cladding, roofing) 4.2.2
Roof form 4.2.1
Size and scale 4.1.2
Windows 4.2.3
Additions (new) to later residences
Lot placement 5.2.1
Materials (cladding, roofing) 5.2.2
Roof form 5.2.2
Size and scale 5.2.1
Windows 5.2.2
Air conditioning units and generators 7.1.5
Brick masonry
Repairing/replacing on early residences 3.3.1
Cladding materials
Repairing/replacing on early residences 3.1.1
Repairing/replacing on later residences 5.1.1
Decorative features
New features on early residences 3.3.3
Reconstructing where missing 3.3.2
Repairing/replacing on early residences 3.3.1
Demolition
Historic buildings 6.1.1
Historic additions and features 4.5.1
Later residences 6.1.2
Disability access ramps 7.2.3
Doors
Repairing/replacing on early residences 3.2.2
Repairing/replacing on later residences 5.1.1
Location on early residences 3.2.2
158 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES
Dormers (new) on early residences
Location 4.3.1
Materials 4.3.2
Size and scale 4.3.1
Driveways 7.2.1
Garages (historic) 7.3.1
Garages (new)
Attached to historic residences 4.1.1
Attached to later residences 5.2.1
Lot placement for new detached 7.3.2
Fences 7.1.2
Hedges 7.1.2
Lifting residences
Early residences 4.4.1
Later residences 5.3.1
Modern-style homes, alterations to 5.1.2
Moving and turning residences
Early residences 4.4.2
Later residences 5.3.2
New residential construction
Architectural style 6.4.1
Differentiation from early residences 6.4.2
Doors and porches 6.5.1
Lot placement and orientation 6.2.1
Massing 6.3.2
Materials 6.4.1
Roof form 6.3.3
Size/scale 6.3.1
Windows 6.5.2
Painting
Color schemes for historic homes 3.3.4
Color schemes for new residences 6.4.3
Color schemes for additions to
later residences 5.2.2
Historic cladding 3.1.1
Patios 7.2.4
Planting beds 7.1.4
Porches
Historic 3.3.1
New, on later residences 5.2.2
Post-consumer products 3.4.2
Roof materials
Repairing/replacing on early residences 3.1.2
Repairing/replacing on later residences 5.1.1
Sandblasting 3.1.1
Sidewalks (public) 7.4.1
Skylights 3.4.1
Solar panels 3.4.1
Stucco 3.1.1
159APPENDIX B - PROFESSORVILLE PROPERTY DATA
Synthetic siding
On early residences 3.1.1
On later residences 5.1.1
Trees
In planting strips 7.4.1
In private yards 7.1.3
Walkways 7.2.2
Windows
Repairing/replacing on early residences 3.2.1
Replacing on later residences 5.1.1
Window wells 7.1.5
Wood shingles
Repairing/replacing on early residences 3.1.1
Roofing on early residences 3.1.2
Yards
Grade 7.1.1
Ground cover and plantings 7.1.1
Historic landscaping schemes 7.1.6
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City of Palo Alto | City Clerk's Office | 8/31/2016 1:02 PM
1
Carnahan, David
From:Allen Akin <akin@arden.org>
Sent:Wednesday, August 31, 2016 10:01 AM
To:Gitelman, Hillary
Cc:Council, City; Weintraub, Matthew; French, Amy; Silver, Cara; Michelle Arden
Subject:Re: Comments on the Proposed Professorville Design Guidelines
On Tue, Aug 30, 2016 at 08:41:10PM +0000, Gitelman, Hillary wrote:
| Thanks for these detailed comments and for participating in this
| long‐running project. Staff will review your comments and prepare a
| response to the issues you have raised in advance of the City
| Council's meeting on September 12th.
Thanks for your followup!
I should emphasize that these issues aren't last‐minute surprises. I raised all of them (and others) in my emails to
Planning over the past year, in discussions at the Design Guidelines Workshops, or at the first HRB hearing for the
Guidelines. Some are more than 15 years old.
Given that there's already been plenty of time and opportunity to take the issues into account, I don't expect Planning to
make any substantive changes in the proposed Guidelines at this point. Clearly the direction for the project was set in
stone at least a year ago.
If Planning is working on new initiatives that aren't generally known, like a significant change in Individual Review or
Historical Review, it would be wonderful to hear about them. However, it wouldn't change my request that Council
table the proposed Guidelines until we understand exactly how an improved review process would work and how any
set of Guidelines would be used in it. For example, I wouldn't want Council to approve them only to learn a year from
now that these voluntary Guidelines with all their shortcomings suddenly will become mandatory.
| I really appreciate your attention to this issue, just as I appreciate
| Matt Weintraub's efforts to bring a complex project that he inherited
| to a conclusion.
The way you've phrased that puts the problem in a nutshell. The goal wasn't to bring a "project" to a "conclusion". The
goal was to fix some of the fundamental issues with design review in Professorville. At least that's apparently how
Planning understood it in 2011. Council might be able to clarify its intent.
For me, the touchstone is usually "Would this have prevented the problems on my project?" With respect to the
proposed Guidelines the answer is pretty clearly "no". My first house design was based on recommendations from
Planning, but the City's historical architecture consultant threw it out. (Recall that this was the same architect whose
staff developed the first Professorville Design Guidelines.) The house was redesigned over the course of a year during
which he had veto power over everything, from the site plan to the paint. But after the design was complete and the EIR
had been drafted, he decided he wanted more changes. When it was time for IR, the City's IR consultant also demanded
redesign of significant parts of the house. When it was time for historic review, the HRB was upset that Planning didn't
give them the opportunity to redesign it as well. We had reached the point where the changes made by some reviewers
were the motivation for changes by other reviewers.
City of Palo Alto | City Clerk's Office | 8/31/2016 1:02 PM
2
An illustrated list of common features in Professorville is not a fix for that situation. A better‐organized review process
might be.
Best Regards,
Allen
Background
This August marks the 9th year I've studied the Professorville Historic District and the rules for building
there. This is the third set of design guidelines for the District in which I've participated in some way. I
paid for the first, helped research and write the second, and now I'm offering advice on the third.
The design guidelines projects were motivated in part by the experience with my house at 405 Lincoln
Avenue during 2007-2010. Mayor Burt, Vice Mayor Scharff, Council Member Holman, and Council
Member Schmid will remember it. A court decision against the City in the Juana Briones House case,
the lack of a City process for CEQA review of single-family houses, and conflicts between the City's
reviewers wound up costing me over $500K and requiring 3.5 years. In the interim the property was in
limbo – unusable and unsellable. For the history of the project, see allenakin.com/405lincoln.html .
Part of that time and expense went into the development of the first set of design guidelines by
Garavaglia Architecture, the City's historical architecture consultant on the project. These guidelines
were abandoned during EIR development when it became clear that they failed to capture the defining
features of the District accurately enough to be used for a CEQA review.
In 2011, Julie Caporgno, Steve Turner, and Dennis Backlund of Planning responded to Council's
direction by taking measures to fix the problems faced during my project. One of their actions was to
create the Professorville Design Guidelines Committee to produce the second set of guidelines. Julie
recruited eight Committee members from the HRB, from Palo Alto Stanford Heritage, and from
Professorville's residents. She asked me to participate because of what I had learned concerning
preservation policies and related law during my project.
The group in Planning decided to combine design review for Professorville with the existing Single
Family Individual Review (IR) process. This had two major advantages. First, it made review
enforceable. (Compliance with HRB review is voluntary, but compliance with IR is mandatory. IR is
discretionary, so CEQA review is triggered when necessary.) Second, it consolidated the two existing
reviews into a single action. (Julie had seen on my project that a great deal of delay, expense, and mis-
design resulted from multiple uncoordinated reviews.)
The Committee was charged with listing the defining characteristics of Professorville and using them to
propose Professorville-specific requirements for the Individual Review guidelines. To understand why
this is a problem without a simple solution, see What Is Professorville?
For three years the Committee held open hearings, researched the defining characteristics of the
District, considered the review process, and discussed the balance between preservation and property
rights, among other things. In 2013 it produced a set of minimalist guidelines and recommendations for
small changes to the ordinance for IR. You can find my explanation of the Committee's work and
recommendations here: arden.org/professorville/index.html . The final draft of the Committee's
additions to IR can be found at DraftIrGuidelinesBooklet.Professorville.pdf . It's about ten pages long.
Julie and Dennis retired, Steve moved on to Redwood City, and as a consequence the Committee's
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proposal was left in limbo.
In 2015 Matt Weintraub of Planning started a new guidelines project from scratch. I learned about it by
chance from an item on the Consent Calendar. There was no attempt to contact the Committee to
discuss its rationale or what it had learned from the community during its effort. Contrary to what you
may read in the new Guidelines, the entire Committee proposal, including the enforcement mechanism
chosen by Planning itself in 2011, was discarded. It's not surprising that the names of the Committee
members don't even appear on the new acknowledgements page.
A few “workshops” with “interactive activities” were held by Planning as part of this new project.
While these were fun (I attended all of them), they were pro-forma and sparsely attended. Only the
first took place before the new Guidelines had been drafted, and even that one occurred after Page &
Turnbull had already completed most of its field research. Although I raised many substantive issues in
letters to Matt and at the workshops and at an HRB hearing, only a few were addressed. Several
disclaimers were added, and some of the simple factual errors were corrected, but the approach and
outcome were foregone conclusions.
Evaluating the Proposed Guidelines
Design review involves interpreting rules that are in part subjective. There will never be universal
agreement about them. See The Craftsman Style Is Bad Taste and Waste
However, I believe we can agree on some objective goals. Review should incorporate the applicant's
needs; be based on the real, measurable District; be legally defensible; be fairly applied; and be
efficient. The newest Guidelines don't do well in those respects. I've provided some explanation in
Comments on the Proposed Guidelines
In brief: The proposed Guidelines do nothing to resolve the lack of a defensible definition for the
District, but add to the confusion by erasing the legally-important distinction between contributing
houses and non-contributors. They do nothing to simplify multiple conflicting review processes, and
even add complexity to them. They do nothing to close a legal loophole that subverts historic
preservation and imposes burdens on residents inconsistently. They provide a false sense of security to
residents who are concerned about preservation, because although they may appear to be requirements,
they are actually voluntary and unenforceable. And they discard the already-existing proposal from
Planning and the Committee that would have made progress on most of those issues.
For those of you who were on the Council in 2011: If it was your intent for Planning to clarify and
simplify the design review process, as Planning apparently understood at the time, then these proposed
Guidelines are not the solution you were looking for.
What We Should Do
In the short term, the right thing to do is table these Guidelines because they don't fix the problems that
actually need fixing. A cynic would say that they're a perfect example of the Palo Alto Process: Adding
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more than a hundred pages of inconclusive criteria to a process that's already too slow and complicated.
In the long term, Council could direct Planning to start fixing the fundamental problems. (Perhaps for
the second time, if Planning recently misinterpreted what Council intended in 2011.) We've spent five
years on this already, so clearly it's not urgent; we can take the time to do things well.
•Compatibility with “the District” is not well-defined. We should strive for compatibility over
neighborhoods or block faces; areas that are neither too large nor too small, but are self-
consistent. Compatibility within the Professorville core could be stronger.
•Focus on the Secretary of the Interior's Standards. Existing City policy and the CEQA
Guidelines require these as the basis for determining whether a project is acceptable.
•Fix the lack of documentation for the houses in the District. This can be done a little at a time to
help manage the expense.
•Determine objective standards that can be used to assess significance and compatibility. Many
of these already exist, but are not being applied consistently or cannot be applied because of
lack of documentation.
•Using those, choose a definition and boundaries for the District that are legally defensible.
•Eliminate the known legal loopholes.
•Consolidate design review processes so that there is one enforceable review. This is necessary
for both efficiency and fairness. The proposed new Guidelines are not without value, and once
this improved process is in place, we may find them useful.
The final result would strengthen the preservation of genuinely historic houses and neighborhoods
while leaving owners throughout the District with enough flexibility to adapt to changes in their own
lives and in the environment. As we anticipate construction of taller buildings nearby, reduced water
supply, increased traffic, increased noise from rail, and so on, we will need it.
Thank you for your patience in working through a long letter on an esoteric subject (that has absorbed
far more of my life during the past nine years than I ever expected).
Best Regards,
Allen Akin
405 Lincoln Ave
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What Is Professorville?
Professorville has a “core” where the vast majority of the early professors lived, nearly every house is
built in one of just a few architectural styles, most of the individually-significant houses are
concentrated, and about 80% of the houses were built in the two decades between 1891 and 1911. The
stone markers for Professorville were placed inside it in 1969. It's essentially the portion of the
National Register Historic District west of Waverley Street, shown in red here:
This is the area with the features most people have in mind when they imagine Professorville.
But the Local Historic District we have today is the result of expansions over the years to include areas
that are not so closely related. Often they were added for superficial reasons (we have good
documentation for this). Today's Local District lacks strong unifying architectural and historical
principles like the core has. Only about a quarter of the houses have a connection to the early Stanford
professors. Depending on how you count them, some 15 architectural styles (including Eichlers!) are
represented, and even within a given style there is major variation in overall design, detail, and size.
Today Professorville contains areas that are no longer distinct from nearby parts of University South or
even Community Center and Crescent Park slightly farther away.
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Professorville west of Waverley Street is a collection of historic houses built in consistent architectural
styles with intrusions of non-historic houses in other styles. Professorville east of Waverley is a
collection of less- or non-historic structures (houses and others) built in more recent architectural styles
wrapped around a modest number of historic houses in a variety of styles. I doubt it's appropriate or
even workable to apply a single set of detailed guidelines to both sections.
The Dames and Moore study of Palo Alto historic resources in 1999 observed that the Professorville
National Register District defined in 1979 wouldn't meet modern standards: The documentation "does
not include the kind of information and the amount of detail that is required today and that is needed in
regulating a historic district, whether as a NRHP [National Register of Historic Places] district, or a city
district." It went on to note specific problems in defining significance, characterizing architecture,
applying the National Register Criteria, defining the period of significance, establishing a defensible
boundary, assessing integrity, documenting individual buildings, and completing original research.
This has practical implications in the real world. My project met its legal requirements in part because
the property had none of the defining characteristics listed for the National Register District.
The Local District of today has even less strength than the National Register District. In January, 2014,
Dennis Backlund explained:
"...while the National Register sector of the district was professionally designated, this was not the
case with the 1993 extended Professorville. In 1993 there was no historic CEQA review process in
the City and no historically trained staff members in the Planning Department. In a nutshell, the
extended District sector was an unprofessional and improper designation (due to nearly 50% non-
contributors in the extended sector at the time of designation) that is often problematical due to
today's historic CEQA review. In 1993 all historic review in the City whether discretionary or not
was entirely voluntary compliance (due to the absence of the mandatory historic CEQA review
which was not practiced by the City until 1994 --triggered by the 1994-95 Varsity Theater-Borders
project where the concerned public uncovered in consultation with the State Preservation Office the
requirement for historic CEQA review in the Planning Department). The extended District did not
raise issues at first because historic review was then harmless to property rights--nothing was
actually required of historic properties except zoning and the Building Code. The solution to the
extended Professorville problem would be a formal evaluation of the extended District which would
definitely require a professional reconfiguration of the extended District boundaries so as to include
a significant majority of contributors."
We have a pretty good idea of what needs to be done to put the definition of the District on a sound
foundation. The Dames and Moore study laid out the key requirements more than 15 years ago.
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The Craftsman Style Is Bad Taste and Waste
A lesson in how there will never be universal agreement about design, using one of the defining styles
in Professorville.
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Comments on the Proposed Guidelines
Applicant's Needs
When most people consider a building project, they begin with a functional need, and then ask what
they're allowed to do. For instance, “I want another bedroom so my parents can stay with us. Can I
expand my second floor?” Or “I suffer from seasonal affective disorder. Can I add skylights to bring in
more natural light?”
The proposed Guidelines are essentially about art; they have a lot to say about aesthetics without
considering the applicant's needs for function. They're disingenuous about their authority, as well;
aside from some half-hearted disclaimers they express their recommendations as if they were
requirements. Applicants should be forgiven for not understanding what is permitted and what isn't!
Under current law, a project is acceptable if it's consistent with the Secretary of the Interior's Standards
for Rehabilitation. Those Standards are more permissive than the proposed Guidelines. Interpreting the
Standards for each particular case, and including the needs of the applicant, is the essential purpose of a
review. The best way to meet an applicant's needs, therefore, is to make a professional-quality review
by architects easier, faster, and more conclusive, not to elaborate the existing process with more than a
hundred pages of non-binding advice.
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Real-World Basis
To avoid overwhelming you with details, I'll cite just a few examples where the Guidelines get into
specifics that fail to respect the ground truth. I sent others to Planning a few months ago.
•On page 9 it's mentioned that Professorville is “distinguished by...its consistent streetscape
patterns...”. In fact, measurements show that Professorville is less consistent than the nearby
neighborhoods of Crescent Park and Community Center. This would be expected from the way
properties were subdivided. Good places to appreciate this are the 300 blocks of Lincoln,
Kingsley, and Melville (where the lots are large and irregularly-sized) and the 1000 and 1100
blocks of Bryant and Ramona nearby (where the lots are small and regularly-sized). Enforcing a
new consistency where it didn't exist historically would be a change to the character of the
District.
•Page 34 states “Early residences are set back from the street between 25’-40’...” A scale map of
Professorville plotted by the City's GIS suggests that very few of the small properties have
setbacks this large, and perhaps a little more than half of the large properties do. So this may be
incorrect. In practice, it's likely irrelevant and doesn't need to be in the Guidelines. Zoning
requirements (particularly the contextual setback) are going to override it, so it can't serve as
guidance to accept or reject a project.
•On page 123, “early homes in the neighborhood were typically constructed with detached
garages at the backs of lots.” Originally this read “all early homes in the neighborhood were
constructed with detached garages” [emphasis added], which was corrected after I pointed out
exceptions. But how common are other garage designs? Would you reject an application for a
new attached garage if only 5% of Professorville houses had them? How about 20%? What if
the percentages differed for houses on alleys as opposed to houses elsewhere? An historical
architecture consultant once told me that assertions about house features in historic districts
always need to be quantified, or you can't be sure how true they really are.
The last item above is one example of the ways the proposed Guidelines misrepresent the district by
oversimplifying and overgeneralizing it. Professorville includes traditional styles and Eichlers, cottages
and mansions. This variety is undeniably one of the defining characteristics of the District. As a result
the Guidelines' sweeping statements about particular features can be wrong for a good percentage of
the houses in the District. As was the case with the first set of Guidelines many years ago, this tends to
make the new Guidelines unhelpful for design reviews and for resolving CEQA questions, because you
can always find counterexamples to support a particular position.
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Here's one of the four Category 1 (most significant) houses in the District:
It violates the new Guidelines in at least four areas: window design, main entrance placement,
streetscape patterns, and landscaping. And it's not alone. Other individually-significant houses in the
District violate one or more of the Guidelines, as do many non-significant houses.
If the proposed Guidelines don't accurately capture what's already in the District, how can you use
them to decide whether a new project is compatible with the District?
Keep in mind that the Secretary's Standards are already so restrictive that had they been in force from
the beginning, Professorville as we know it today could not have been built. This house is a good
example. Today we recognize it as one of the most significant in the City, but when it was built it was
incompatible with the core Professorville houses in massing and materials. That would have violated
the Standards.
It might be ideal to have definitive requirements, but for a District that doesn't have consistent
architecture or history, laundry-lists of guidelines are not the best substitute. The Committee's
recommendations depended on the review process to balance compatibility and change.
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Another way the proposed Guidelines overgeneralize is by misleading readers about the amount of
similarity in the District. There's a good illustration of this on page 38: A map of the District where
areas are colored by architectural style.
I think that most people, seeing this, would get the impression that large areas of Professorville are very
similar architecturally. But is this true in reality?
Here are two houses that are both colored dark green on the map:
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Here are two more, this time from the light-green areas:
If you built an addition to one house of each pair using the style of the other, would it be compatible? Is
it misleading to imply that they're the same style by portraying them the same way in the map?
The Guidelines supposedly describe the defining features of Professorville. Are they complete enough
to explain why a given house is appropriate for the District, and a neighbor across the District boundary
isn't? Here are two houses, adjacent to one another in the middle of their block. One is inside the
District and the other isn't:
Architecturally, neither one seems very different from other houses in the District, so it's not obvious
why they aren't both in the District. Perhaps one is “historic,” and the other isn't? But just down the
street, you'll find this house, which is also next to the District boundary but wasn't included in the
District:
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In fact, most houses in the District aren't significant individually, and plenty of nearby houses that are
significant individually are not in the District. Many houses in the District are not obviously different
from houses outside it. Again, if the Guidelines aren't strong enough to show why existing houses
belong or don't belong in the District, how are they valid for showing why a new house or an addition
belongs or doesn't belong in the District?
Legal Defensibility
The new Guidelines have no legal force, so I doubt they have to be defensible per se. However, they
do nothing to help resolve the essential CEQA question of whether a project in Professorville presents
significant unmitigatable impacts on the historic resource that comprises the District. If the City cites
them among its reasons to block a project, it might be challenged on the basis of issues like those
described in this letter.
Age alone is not enough to confer significance; anything that simply survives eventually becomes old,
whether or not it's individually valuable or a meaningful part of a larger whole. That's why the
Department of the Interior requires historic districts to have unifying principles in addition to age. The
decision of the new Guidelines not to differentiate between contributing and non-contributing houses in
the District, and to use age alone, is a fundamental error. I wouldn't be surprised to learn that it offers
another path to a legal challenge, perhaps to the District itself.
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Fairness
The new Guidelines fail to address a major loophole: Today you can freely demolish an historic house
and build a one-story replacement of your choice. HRB recommendations are non-binding. Individual
Review doesn't apply to one-story houses, so there's no discretionary action involved, and CEQA
doesn't apply. Therefore the constraints are significantly more severe for two-story houses than one-
story houses. This loophole has been used; 225 Lincoln (a one-story spec house constructed in 2013;
ironically, pictured as a positive example in the new Guidelines) exists because a Category 3 historic
house was demolished in order to build it. The Committee's recommendations, on the other hand,
would have modified Individual Review to apply it to single-story houses in Professorville and thus
treated one- and two-story houses fairly.
Dennis Backlund documented that many of the properties added in the 1993 expansion don't contribute
to the District. The Guidelines before you impose the same constraints on those properties that they do
on the contributors. This is clearly unfair (and perhaps challengeable).
Efficiency
The new Guidelines offer no improvement in this respect. All the conflicts between City reviewers that
I dealt with in my project are still possible, and likely to happen again for someone else. The
Committee's approach would have consolidated multiple reviews, reducing the potential for
inconsistency, and streamlined the process.
An HRB member once told me that Guidelines should be brief and general. The more non-binding
specifics that are added, the greater the chance they will be misunderstood or misused. The proposed
new Guidelines definitely fail that test. Sometimes less is more.
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