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Home My WebLink AboutRESO 9637161024 jb 0131545 1 Resolution No. 9637 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. SECTION 1. Upon consideration of said recommendation after duly noticed public hearing on September 12 and October 24, 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 L12: Preserve the character of residential neighborhoods by encouraging new or remodeled structures to be compatible with the neighborhood and adjacent structures. POLICY L48: Promote high quality, creative design and site planning that is compatible with surrounding development and public spaces. PROGRAM L49: In areas of the City having a historic or consistent design character, design new development to maintain and support the existing character. POLICY L51: Encourage public and private upkeep and preservation of resources that have historic merit, including residences listed in the Historic Inventory. PROGRAM L58: 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 L58: 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, enhance and perpetuate those historic structures, districts and neighborhoods which contribute to the DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB 161024 jb 0131545 2 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 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 and shall be compatible with the massing, size, scale, and architectural features to protect the historic integrity of the property and its environment. DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB 161024 jb 0131545 3 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 with the changes noted in Exhibit B, as well as a reference to other available historical preservation incentives. Staff is authorized to reprint the Guidelines to incorporate these changes in accordance with Council action on October 24, 2016. // // // // // // // // // // // // // // // // // // // DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB 161024 jb 0131545 4 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: October 24, 2016 AYES: BERMAN, BURT, FILSETH, HOLMAN, KNISS, SCHARFF, SCHMID NOES: WOLBACH ABSENT: DUBOIS ABSTENTIONS: ATTEST: City Clerk Mayor APPROVED AS TO FORM: APPROVED: Senior Assistant City Attorney City Manager Director of Planning and Community Environment Director of Administrative Services DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Pr ofessorville Hist oric District Design Guidelines Pal o Alto, California October 2016 Prepared by: PAGE & TURNBULL DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Pr ofessorville Hist oric District Design Guidelines Palo Alt o, Calif ornia October 2016 Prepared by: PAG E & TURNBULL DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB The activity which is the subject of this design guidelines document has been financed in part with Federal funds from the National Park Service, Department of the Interior, through the California Office of Historic Preservation. However, the contents and opinions do not necessarily reflect the views or policies of the Department of the Interior or the California Office of Historic Preservation, nor does mention of trade names or commercial products constitute endorsement or recommendation by the Department of the Interior or the California Office of Historic Preservation . This program receives Federal financial assistance for identification and protection of historic properties. Under Title VI of the Civil Rights Act of 1964, Section 504 of the Rehabilitation Act of 1973, and the Age Discrimination Act of 1975, as amended, the U.S. Department of the Interior prohibits discrimination on the basis of race, color, national origin, disability, or age in its federally assisted programs. If you believe you have been discriminated against in any program, activity, or facility as described above, or if you desire further information, please write to: Office of Equal Opportunity National Park Service 1849 C Street, N.W. Washington, D.C. 20240 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Acknowledgments City Co uncil Patrick Burt, Mayor Gregory Scharff, Vice Mayor M arc Berman Tom DuBois Eric Filseth Karen Holman Liz Kniss Greg Schmid Cory Wolbach Historic Reso urces Board M artin Bernstein David Bower Beth Bunnenberg Patricia Di Cicco Roger Kohler Michael Makinen M argaret Wimmer City Staff 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 Staff Hillary Gitelman, Director of Planning and Community Environment Amy French, Chief Planning Official Matthew Weintraub, Planner Dave Dockter, Planning Arborist Special Acknowledgments t o: Professorville Homeowners and Residents Dennis Backlund, City of Palo Alto Planner (retired) Prepared by Page & Turnbull, Inc. 417 Montgomery Street, 8t" Floor San Francisco, California 94101 www.page-turnbull .com DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Contents 1. INTRODUCTION 11 Project Background 11 The Professorville Historic District 12 Purpose of the Design Guidelines 15 Secretary of the Interior's Standards for Rehabilitation 16 How to Use the Guidelines 20 Incentives for Historic Preservation in Professorville 23 Methodology for Developing the Guidelines 26 Frequently Asked Questions (FAQ) 28 2. PROFESSORVILLE HISTORY AND CHARACTER 35 Brief History of Professorville 35 General Description of Current Conditions 39 3. GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 59 4. GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT (C. 1890-1930s) 77 5. GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT (1940s -PRESENT) 93 6. GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 103 7. GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, ACCESSORY BUILDINGS, LANDSCAPE, AND STREETSCAPE 119 APPENDIX A: GLOSSARY OF TERMS 137 APPENDIX B: PROFESSORVILLE PROPERTY DATA 141 INDEX 163 DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Introduction DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 11 1. Introduction 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 re main comfortable and in good condition. In addition, alterations may be desired in order to adapt the neighborhood's early homes to contemporary lifestyles. In some ca ses, 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Professorville contains a mixture of house size s, styles, and forms. This variety is one of the neighborhood's defining characteristics. 12 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 the Treatment of Historic Properties (described later in this chapter) . The City selected the firm of Page & Turnbull as the consultant to develop and produce the final guidelines . The 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 13 O 0 Fe et 125 250 375 500 LE GEND Professorville B oundaries Q Local Hist ori c District ;::; National Register Historic District The locally designated Professorville Historic District expanded the boundaries of the earlier Nation al Register district. See Appendix B for a map that includes individual property addresses. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 14 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 form al 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," 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, to encompass 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 15 Purpo se 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 ad vice 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 preventchange 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 16 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Secret ary of the I nterior's Sta nd ards for Reh abilitatio n The Professorville Historic District Design Guidelines provide recommendations that are closely based on, and are consistent with, established preservation standards. Specifically, they build upon the National Park Service's Secretary of the Interior's Standards for the Treatment of Hist oric Properties (the Standards). The body of guidance contained within the Standards forms the primary analytic tool that federal agencies and local government bodies across the United States use to evaluate the potential impacts of proposed projects on the integrity of historic properties. The design guidelines in this document specifically build upon the Standards that have been developed for rehabilitation projects . As defined by the National Park Service, 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 applicable Standards, listed on the following page, have been developed to help property owners, architects, municipalities, and others to understand the fundamental considerations and approaches that would accommodate changes and new uses of buildings, districts, and landscapes while retaining the distinctive features and forms that define the historic character of a property . These standards acknowledge that some repair or alteration of historic properties may be needed to accommodate new updates and contemporary uses. 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 17 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. Rehabilitatio n 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. Rehabilitatio n 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. Rehabilitatio n Standard 4: Changes to a property that have acquired significance in their own right will be retained and preserved. Rehabilitatio n Standard 5: Distinctive materials, features, finishes and construction techniques or examples of craftsmanship that characterize a property will be preserved. Rehabilitatio n 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. Rehabilitatio n Standard 8: Archaeological resources will be protected and preserved in place. If such resources must be disturbed, mitigation measure will be undertaken. Rehabilitatio n Standard 9: New additions, exterior alterations, or related new construction will not destr oy 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. Rehabilitatio n 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB The Professorville Historic District Design Guidelines address indiv idual homes, as well as the neighborhood's overall landscape character. 18 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES The guidelines take into account the f oll owing imp ortant characteristics of Pr ofessorville: • L ot lay out and pattern; • Massi ng a nd f orm of buildi ngs a nd structures; • Material palette; • Architectural styl es 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 Standards — 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 19 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 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 loca tion, 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 pr ovided for h omes d ating to Professorville's early and later periods of development . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 20 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, Restoring, and Replacing Historic Materials • Chapter 4: Altering or Adding to Residences From Early Periods of Development (c . 1890-193Os) • Chapter 5: Altering or Adding to Residences From Later Periods of Development (194Os-present) • Chapter 6: Designing and Building New Residences • Chapter 7: Site Improvements: Detached Second Units, Accessory Buildings, Landscape, and Streetscape 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. 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 Standards, 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 21 Components of a Design Guideline 1. 1 Repairs and Alter ations • 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 o riginal windo ws • wherever possible. the original window type, including shape, siz e, a nd 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 STATE MENT 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 info rmatio n: Preservation Brief 9: "The Repair of Historic Wooden Windows," (NPS), https://www. nps.gov/tps/how-to-preserve/ briefs/9-wooden-windows. htm DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 22 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 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. Selecting an Architect and Contract or 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 California 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.orq. This list is not exhaustive, and many additional architects in the Palo Alto area likely have backgrounds working with historic buildings. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 23 Incentives for Hist oric Preservati on in Pr ofessorville The Professorville Historic District Design Guidelines promote preservation of the district's distinctive historic character and sense of place. When rehabilitation projects in Professorville adhere to the Standards, property owners also gain access to a number of financial and planning incentives that reward their efforts to preserve their residences in a sensitive manner. As the Professorville Historic District Design Guidelines are closely based on the Standards, the following incentives are well suited to be used in tandem with the design guidelines in providing the greatest benefits possible to property owners and the larger historic district. Additional details on these incentives can be obtained from the City of Palo Alto Planning and Community Environment Department . Ca lifornia Histo rical Building Code The California Historical Building Code (CHBC) is a powerful mechanism that pro vides an alternative set of building regulations for historic properties undergoing rehabilitation. The CHBC recognizes that efforts to preserve the historic materials, features, and overall character of a historic property at times may be in conflict with the requirements of regular building codes. The CHBC proposes reasonable, equivalent alternatives so that a property's fire protection, means of egress, accessibility, structural requirements, and methods of construction would not need to be modernized in a manner that compromises historic integrity. Under the CHBC, elements such as historic doors, exterior cladding, structural systems, and stairs may be retained in many instances where they existed historically —even though these elements may not meet the prescriptive requirements of regular building code. The CHBC is intended to allow continued, safe occupancy while DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 24 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES protecting the historic fabric and character -defining features that give a property historic signific ance —thus promoting adherence to the Standards . The City of Palo Alto's Comprehensive Plan supports the use of the CHBC (Program L-65), and the Palo Alto Building Code has adopted the CHBC (PABC 16.04.350) for historic properties. Professorville residents are strongly encouraged to rehabilitate properties using the CHBC as a strategy to help follow the Professorville Historic District Design Guidelines. More information on the CHBC is available from the Division of the State Architect's website: http://www .dgs .ca.gov/dsa/AboutUs/shbsb.aspx. Palo Alto Municipal Code The Palo Alto Municipal Code Title 18 includes preservation incentives that provide benefits to property owners while also promoting sensitive m ainten ance and rehabilitation of historic buildings. To qualify for the following incentives, a property owner must record a covenant to run with their property that requires future maintenance to adhere to the Standards. • Residential subdivision exceptions: Properties in Professorville (R-1 zoning district) containing at least one historic building can, in some instances, be subdiv ided into two ownerships if the historic building(s) is/are maintained in adherence to the Standards, and if no additional residences are to be constructed on either property. The minimum allowed size of the resulting lots is 4,000 square feet if only one historic building is present, and 2,000 square feet if both residences are historic. (PAMC 18.10.130, 18.12.140, 18.13.040) DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 25 • Home Improvement Exceptions (HIE): Home improvements and minor additions to qualifying historic buildings in Professorville can exceed the allowed maximum floor area by up to 250 square feet, so long as HIE eligibility criteria and approval findings (set forth in PAMC 18 .12 .120) are met and the project adheres to the Standards. Mills Act The Mills Act is a state -sponsored initiative that local governments may administer to incentivize historic preservation efforts. Adopted by the State of California in 1976, the Mills Act provides owners of both owner -occupied and income -producing properties the opportunity to receive property tax relief in return for rehabilitating and maintaining historic properties. Under the Mills Act, the owner of a qualified historic property may enter into a 10 -year contract with the City of Palo Alto that specifies the owner will rehabilitate or maintain the property in accordance with the Standards . In return for this commitment, the property owner receives reduced property taxes. Federal Rehabilitation Tax Credit The National Park Service, in cooperation with the California Office of Historic Preservation, administers a financial incentive program that provides a federal tax credit equal to 20% of qualifying expenses of a Standards -compliant rehabilitation project to a historic property. The program is available for buildings that are National Historic Landmarks, or listed in the National Register, or that contribute to National Register historic districts. Note that the tax credit program applies only to properties that are, or will become, income producing —and, as a result, many properties in Professorville would not qualify. The tax credit, however, is available for properties used as rental units. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 26 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES U.Inp to. GWrlslin os Activ0y: T arsi Sao -mules • r, ,.,{d aco wadi b... Wn e,... we... . 6.10 114K -M1 ,ircue i lwriJ goe r di on*, deb R n. 13Yly SE.ev.. • n.,.n.till d og, . crotwo. g. pro loom o on In a vita • co..... iar srn , t wen rxv a rwae n m.r • A te• Pin nbnYb a. .RA we, group nv. o• MO b Cg. Nex t Prepara tion of the design guidelines involved field survey to document neighborhood character, as well as community workshops to solicit input fro m neighborhood residents. In order to qualify for the tax credit, the property must be rehabilitated according to the Standards . The proposed project must be reviewed by California OHP and National Park Service staff to certify the historic status of the property and the scope of the rehabilitation . Interested property owners are encouraged to learn more at the website of the National Park Service: https://www .nps .gov/tps/tax-incentives .htm . Meth odology f or Devel oping 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 27 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. 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 applica ble 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 September 12, 2016 and October 24, 2016. All photographs in this document were taken by Page & Turnbull except where otherwise noted. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 28 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Frequently Asked Questi ons (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 a nd 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 189Os-193Os, 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 193Os. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INTRODUCTION 29 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 will 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 Interio r's Standards for Rehabilitation. When proposed exterior work requiring building permits is subject to HRB review and recommendation under the current code, the HRB will use the guidelines as a reference document when making 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Professorville History and Character DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 35 2. Professorville History and Character Brief Histo ry 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. M any new residences showed the influence of the Shingle, Arts and Crafts, and Colonial Revival styles, reflecting a San Francisco Bay Area When Professorville was constructed, it conveyed a rustic feeling that is still experienced today. Cowper Street is seen above . Sour ce: Stanford University Historical Ph otograph Collection DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 36 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Many large trees were o rigina lly left standing within Professorville's roadways. Sou rce: Stanford University Historical Photograph Collectio n regional interpretation known as the First Bay Tradition. These residences frequently were clad in wood shingles and had asymmetric fagades, 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 c anopy, 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. DocuSign Envelope ID: B41A0A8C-0ED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 37 O 0 Fee t 125 250 375 500 0 5 \-0°2' sod LE GEND 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 th an a century. Many of the oldest homes are located in the district's west half. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 38 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES M=MILE LIMMIN I 10. 1 I A.4),5 k_"? .///,-716 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 The narrative in this section is informed by the following sourc es: Historic Environment Consultants, H istorical and Architectural Resou rces 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). DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 39 General Descripti on of Current Conditi ons 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 voca bulary, 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 Profess orville face the street, creating a handsome visual impression. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 40 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Site Devel opment P atterns 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. 17-dez.wM � r cwn An, Vic e, DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 41 Streetsca pe 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 tow ard 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 a nd 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) ha ve extensive concrete or gravel paving throughout the front yard. 111ll1111I11III1i11111i1111111111!1��iiiillll 11111111111111111161 ttUllr1gl31lffi[UTd1Iflmoawm ulaugmaiiliMailliMal 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 42 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 houses 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 Devel opments in Residential Landscapes Virginia and Lee McAlester's reference book A Field Guide to America's Historic N eighborhoods 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 43 Historic Architectural Styles in Pr ofess orville 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 44 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES This map displays the general distribution of different architectural styles, as explained in the following pages. Many homes exhibit the characteristic features of more tha n one style, so the groupings above are kept broad. 0 Professorville Historic District Style / Influence: Shingle Style; Colonial Revival; Queen Anne; Craftsman; Prairie Spanish Colonial Revival; Mission Revival; Tudor Revival; French Eclectic ▪ Bunga lows; Mo dern; Ranch ▪ Neoeclectic; Neotraditional; Contemporary DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 45 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 • Wood -sash windows, typically with divided lites diamond muntin patterns • Front porches or recessed entries • Shed -roofed or hipped -roof dormers • Asymmetrical arrangement of features at facades • Cantilevered overhangs above the first story, in some outward • Angled or boxed bay windows eaves and occasionally with instances flared 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Co lonia l Revival residences are chara cterized by their symmetrically arranged facades and Classical architectural details. Gambrel roofs are seen on homes throughout Professorville, reflecting the mixture of Colonial Revival and other influences. 46 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES C olonial 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 ye ars 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 47 Queen Anne Perhaps the quintessential Victorian -era architectural style, Queen Anne was extremely popular across the United States in the late nineteenth century. Hom es 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) Queen Anne residences take different forms in Professorville. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB The Mediterranean Revival style is characterized by symmetricality, whereas other related styles o ften have asymmetrical facades. 48 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Stucco cladding, tile roofs, and arched openings are characteristic of homes influenced by Spanish Colonial architecture. 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 49 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 Prominent front gables are characteristic of the Craftsman style. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 50 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Tudor Revival The Tudor Revival is seen occasionally in Professorville. Another of the Revival styles popular in the e arly 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 �. I _ �,, ,a 7 ,rid ,A' 'a. f it MK 1111.1014.0.14,1' I ii fYwier Half timbering is a recognizable marker of the Tudor Revival style. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 51 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 facade • Rectangular plan • Shallowly pitched hipped roofs with widely overh anging eaves • Wood belt course located between the first and second stories • Wood -sash windows Strong horizontal massing and low-pitched roofs indicate the influence of the Prairie School . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Buildings constructed in Professorville during the postwar period are visibly distinct from the neighborhood's earliest homes. 52 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 193Os, 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 fapade planes with a variety of cladding materials: brick, wood, and/or stucco • Asymmetrical front fapades • Gabled roofs • Attached garages incorporated into house volume • Large fixed windows, possibly metal -sash, pl aced on fapades for compositional effect DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB PROFESSORVILLE HISTORY AND CHARACTER 53 N eoeclectic 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 Neoeclectic residences reflect modern interpretations of older architectural styles. F or more inf ormation: "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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Guidelines for Maintaining, Repairing, Restoring, and Replacing Hist oric Materials DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 59 3. Guidelines f or Maintaining, Repairing, Rest oring, 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 rehabilitating 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB The interplay between cladding materials is important to the character of many homes within Prof essorville. 60 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 3 .1 Historic exterior materials should be maint ained 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 w orking conditi on. Deteri orated historic cladding should be replaced in kind to match the existing as closely as p ossible. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 61 • 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 h omes designed in Spanish Colonial and Mediterranean Revival styles and should be preserved where it already exists. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 62 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES For additional information: "Preservation Brief 1: Cleaning and Water -Repellent Treatments for Historic Masonry Buildings" (NPS), https://www .nps.aov/tps/how-to-preser ve/briefs/1- cleaning-water-repellent .htm "Preservation Brief 6: Dangers of Abrasive Cleaning to Historic Buildings" (NPS), https://www.nps.gov/tps/how-to-preservelbriefs/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 "Preser vation 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 63 3.1.2 Historic roofing materials should be maintained and repaired in place . Failing roo fing materials sh ould be replaced with the goal of matching the material and a ppearance of the origin al 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 m aterials are imp ort ant components of a residence's architectural style. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 64 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES For additi onal inf ormation: "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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 65 3.2 R epair Historic Windows and Do ors 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 -defining features and should be retained and repaired when fea sible. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 66 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 cl osely 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 The appearance and l ocation of historic do ors 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 67 Fo r additional informati on: "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://ohp. parks.ca. gov/pages/1054/files/nthp%20saving%20windows .pdf The Window Sash Bible: A Guide to Maintaining and Restoring Old Wood Windows, Steve Jordan, http://painintheglass.info/pages/window-restoration-bible .php DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 68 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Historic homes throughout Professorville have distinctive decorative features that convey their character. They should be treated sensitively whenever possible. 3 .3 Additi onal Ch aract er -D efining Features That 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 -defining 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 69 • 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 materi als . • 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 no t intro duce new architectural elements to a residence where they did n ot ex ist 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 70 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 3.3.4 When planning to paint exterior walls and features, explore color schemes th at are compatible with a h ome's historic conte xt . • 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 in vestigative testing that could reveal a home's historic paint colors. • Muted colors are encour aged 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 inform ation: "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. oov/tos/how-to-preserve/briefs/45-wooden-porches.htm DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING, AND REPLACING HISTORIC MATERIALS 71 3. 4 The Historic Character of H omes Should Be an Important Co nsideration When Exploring Green Techn ology. 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 pa nels and other energy savings devices sh ould 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 exteri or 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. Solar roof panels should be placed so that they have as minimal a visu al imp act as possible on the publicly visible areas of a home. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 72 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES For additi onal inf ormation: "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 DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Guidelines for Altering or Adding to Residences from Early Peri ods of Development (c. 1890-1930s) DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 77 4. Guidelines for Altering or Adding to Residences fr om 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, restoring, 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 c ases to enhance the neighborhood's character and visual qualities. The guidelines in this chapter are intended to give homeowners a nd 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 193Os. 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 78 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES This side addition to an ea rly home in Professorville is visible from the street but is clearly set back from the original front facade. For additional informatio n: "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 4 .1 New Additi ons 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 facade 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 Additi ons should be placed where they will not distract fr om 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 proposed, design the addition so that it is set back clearly from the primary volume of the residence. Such an approach retains the prima cy 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 79 • 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 additio ns should be sized appr opriately to the s cale of the histori c 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 squa re 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 proposed, 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 80 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 h ome already has a non -historic additi on, consider placing a new addition at the same l ocation 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). DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 81 4. 2 The Architectural Character of a New Addition Sh ould 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 ornament ation, 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 The 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 a nd can extend an original roof slope without a distracting visual impact. These side additions were designed to share materials and decorative features with the original home. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 82 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 4.2.2 The characteristic m aterials of a residence sh ould 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 The fenestration pattern of an additi on 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 83 4.2.4 An effort sh ould be made to differentiate 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 a rchitectural 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 84 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 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. 4 .3 New Dormers and Second -St ory Additi ons 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 neighb orh ood . • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 85 4.3. 2 The architectural character of a residence sh ould 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 No t Be Lifted or Moved on Its Lot Such that Its Histo ric Spatial Relatio nships 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 Professo rville sho uld remain at their historic elevati ons 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. LTh 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 86 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 l ocati ons unless practical considerati ons necessitate relocation within their lots. If m oved, a home's character -defining orientati on and setting sh ould 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 ch aracteristic landscape features or other buildings. • Avoid turning a residence on its lot so that its front f agade 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM EARLY PERIODS OF DEVELOPMENT 87 4.5 Do Not Remove Significant Historic Fe atures and Volumes on an Early Residence in Order to Facilitate New Constructi on. New work should be planned carefully to avoid significant impacts to the building's historic integrity. Whenever possible, make alterations and additions in areas where change has already occurred (see 4 .1 .3) . 4.5.1 Selectively demolishing character -defi ning features and volumes diminishes the overa ll histo ric 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 a dditions and a lterations that occurred during Professorville's early period of development (thro ugh the 1930s) may contribute to a residence's historic chara cter. • 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Guidelines for Altering or Adding to Residences from Later Periods of Development (1940s -Present) DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT 93 5. Guidelines for Altering or Adding to Residences fr om Later Periods of Development (1940s -Present) The first wave of development in Professorville came to a close during the 193Os, 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 on the overall character of the district . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 94 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Some newer residences are clad in wood shingles, reflecting Professorville's historic materia l palette. Retaining these shingles would help to relate homes from different eras within the district. 5 .1 Alter ations 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 fe atures should be compatible with, yet differentiated 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT 95 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 Additio ns to Later Buildings Should Have As Minimal a Visual Impa ct As Possible and Should Respect Neighboring Residences. While not historically significant within the context of Professorvil le, 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 a dditions should be placed on their lots and scaled to be as un obtrusive as po ssible. • Design and site a new addition that supports the surrounding streetscape pattern; placement at the rear of the building ra ther 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 facade to strengthen Professorville's overall streetscape pattern . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 96 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES • New garages for later homes should be detached and placed at the rear of the lot whenever possible, in keeping with Professorville's historic pattern of detached garages located at the backs of lots. If a new attached garage is proposed for a later home, it should be side -facing and set behind the primary volume of the house so that it is not visible at the front of the residence (see 7 .3.2). 5.2.2 An addition should be designed with an architectural vocabulary that is both appr opri ate to the m ain residence and relates to surrounding older h omes. • The roof form of an addition should resemble and/or continue the roof form of the original residen ce. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR ALTERING OR ADDING TO RESIDENCES FROM LATER PERIODS OF DEVELOPMENT 97 5. 2.3 A second -story addition will likely be visible from the street and c ould change the appearance of a residence. Su ch an addition should be carefully designed to enhance the historic qualities of the neighborh ood. • Design a second -story addition with the goal of minimizing its visual bulk . Utilize sloping roofs and overhanging ea ves 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 facade planes. 5. 3 Lifting or Mo ving a Later Building on Its Lot Should Not Interrupt the Overa ll Streetsca pe Pattern of th e Surrounding Ar ea. 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 residenc e should not be raised a bove its existing height if this action would change the height and perceptible scale of the building to be larger than its neighbo rs. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 98 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES The modest cottages making up Kingsley Court were constructed after the first wave of develo pment of Professorville, but they were designed by Birge Clark, an important Palo Alto architect. Keep in mind that later buildings in the ne ighborhood ma y have their own grounds for historic significance. 5.3.2 A later residence maybe m oved 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: P otential for Individu al Hist oric and Architectural Significance 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 ha ve individual historic significance should explore project options that would preserve architectural forms and features that conv ey significance. These guidelines do not address design compatibility for later properties that are architecturally or historically significant . DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Guidelines for Designing and Building New Residences DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 103 6. Guidelines f or Designing and Building New Residences While most lots within Professorville are currently built out, construction of new residences in Prof essorville 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 104 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 6.1 New C onstruction 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 189Os 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 . DocuSign Envelope ID: B41A0A8C-DED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 105 6.1.2 Avoid dem olishing later residences that are c omplementary 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 . (See 6.2-6.5 for design compatibility recommendations.) • 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 co nstruct new residences witho ut removing existing residences. • Subdivision of large lots is an acceptable way to preserve existing homes and to create a new developable lot(s) provided the resulting new construction can be accomplished without significantly disrupting important characteristics of the setting and environment of the district and existing residences. • If constructing a detached secondary dwelling unit on an existing lot, avoid disrupting the setting and environment of existing buildings. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 106 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 6.2 New Residences and Accessory Buildings Should Be Sited Within Their L ots to Reflect Professorville's Hist oric Development and Streetsc ape P atterns . 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 sh ould be placed on its l ot with a similar l ocati on, setback, and orientation as nearby residences in Profess orville, 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 setb ack from the street should be within the range used on surrounding residences. • Always orient a new residence with its primary facade facing towards the street. When siting a new residence, pay attention to the setbacks of surrounding homes. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 107 6.3 Proposed Residences Should Be Designed to Match the Scale, Massing, and General F orm of Older Residences . The earliest homes in Professorville are distinguished by their relatively simple forms, controlled scale, and strong front facade 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 The size and height of a new residence should r eflect Professorville's e arly ho mes in order no t to loo k o ut 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 108 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 6.3.2 The massing and f orm of a new residence should be carefully planned to avoid perceived bulk that is inc ompatible 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 fagade 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, compa tibility will be be st achieved when cues are taken from neighboring residences. Visual bulk could be managed by placing an upper sto ry within the roof form, whe re neighboring residences use a similar strategy. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 109 6.3. 3 A new residence should have a relatively simple ro of form that references the fo rms found elsewhere in the neighborhood. The roof should be si zed to complement the building's prop orti ons, n ot 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. Simple roof forms that have precedence within Professorville are better suited to the neighborhood than roofs with many intersecting slopes. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 110 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 6 .4 The Architectur al 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 architectur al influences that are already f ound in the neighborh ood. • 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 Professorv ille 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 111 • 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 p atterns th at are not compatible with the historic character of Professorville's early homes. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 112 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 6.4.2 Choose strategies that differenti ate new c onstruction fr om the neighb orh ood'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 sh ould generally be compatible with historic homes in Profess orville. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR DESIGNING AND BUILDING NEW RESIDENCES 113 6.5 The Entrances and Fenestrati on P atterns of New Residences Should Be Designed to Connect a New Residence to the Established Visual Character of the Neighborho od. 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 sho uld relate directly to the public realm and support the historic character of the streetscape. • Always place the primary entrance on the front facade, 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 facade plane, if appro priate to the new house design. • Include a dditional 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB New residences should not be de signed with surface -to -void ratios that contrast strongly with their historic neighbors within Professorville. 114 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES • 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 Wind ow types and arrangements on new constructi on should reflect traditi onal patterns within Professor ville . • 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 b ase of the house to the top . Avoid window types, sizes, and loc ations that appear randomly assigned . • Avoid oversized windows that are out of character with the house and the neighborhood. DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Guidelines for Site Improvements: Detached Second Units, Accessory Buildings, Landscape, and Streetscape DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 119 7. Guidelines f or Site Improvements: Detached Sec ond Units, Accessory Buildings, Landscape, and Streetscape The guidelines in this chapter address the historic qualities of the Professorville Historic District's landsca pe, 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, DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 120 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 ch aracter 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 121 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 c onsistent 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. The open, planted quality of many front yards in Pr ofessorville is an appropriate mod el for new landscaping. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Low fences and hedges are both good strategies to delineate front yards while allowing a visua l relationship to public areas. 122 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 7.1.2 Fences, hedges, and other b oundary features sh ould be appropriately designed and sc aled to convey a visual progression from public to private space and to preserve Pr ofess orville'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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 123 • 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 sho uld be maintained to convey the neighborho od'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. Professorville's historic leafy character should be preserved through sensitive treatment of trees. Sour ce: Stanford U niversity Histori cal Ph otograph Collection F or 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/ DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 124 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Side yards are typically visible from public area s and contribute to the character of Professorville. The visual impact of mechanical equipment and other distracting elements in these locations should be minimized. 7.1.4 Planting beds al ong h ouse 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 affect 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 facade, place excavated features and mechanical equipment at the rear half of the residence, away from the front of the property. Investigate pl anting schemes that screen these elements from public view. 7.1.6 Residents of older properties in Profess orville are encouraged to research historic landscaping patterns that are period appropriate to their h omes. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 125 7.2 Driveways, Walkways, and Other Paved Elements Should Have As Little Visu al Imp act on the Over all L andsc ape 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 The locatio n, size, and materials of a driveway sh ould be carefully selected in o rder to preserve the broader visual patterns of the neighborho od. • 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. Ribbon driveways offer an effective way to provide automobile circulation within a property while minimizing visual impact . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Narrow brick walkways provide visual interest to front yards without creating a monotonous paved surface. 126 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 particul arly 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 l oc ated at the center of front yards to all ow 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 h ave 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 fapade of a residence to provide access between the front entrance and the driveway, garage, or other parking area. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 127 7.2.3 Ramps or lifts, where requi red, should be designed to be compatible with the histo ric 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 disc ouraged, as they often involve paving and o ther features that interrupt the historic character that is desired for fr ont yards in Pro fesso rville. • 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Historic garages and carriage houses are important elements of their properties and should remain in use where possible. 128 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 7 .3 The Rehabilitati on 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.) DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 129 • 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 Pr ofessorville 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Ne w deta ched garage s can be designed with materials and doors that relate to historic residences in Professorville. 130 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 7.3.3 New g arages and other access ory 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB GUIDELINES FOR SITE IMPROVEMENTS: DETACHED SECOND UNITS, LANDSCAPE, AND STREETSCAPE 131 7.4 Take Into Acc ount Professorville's Hist oric Character When Making Changes to the Neighb orho od'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 sh ould be maint ained 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 ov erall 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 n ative trees have been accomm odated throughout Professorville's historic development. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB This curb cut with a tight radius reflects an ea rlier era of Professorville and could serve as a template for future improvements. Identification signage has been used in many historic districts to enhance a sense of arrival and neighborhood ide ntity. 132 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 7.4.2 Upgrades to Profess orville's utilities and roadway infrastructure should be devel oped with the neighborh ood's historic character in mind. • Investigate sensitively moving utilities infrastructure, such as power lin es, 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 educati on strategies should be considered to enhance the ne ighborho od'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. DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Appendices DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX A - GLOSSARY OF TERMS 137 Appendix A: Glossary of Terms Asphalt co mpo sition shingles: Shingles Cart ouche: A decorative relief located Dentils: Small tooth -like blocks set in rows made from roofing felt coated with asphalt on a facade, often of molded stucco and (dentil courses) used in Classical cornices . and mineral granules. representing a shield or crest. Dormer: A minor projection on a pitched Baluster: Small turned or cut out posts Casement window: A window with the roof, usually bearing a window on its front that form a railing. sash hinged on the jamb (vertical side face . Dormers can h ave a variety of roof member). forms. Bay window: The common term for a minor projection containing a window that Clapboard siding: A siding material Eave: The lower edge of a roof slope that extends beyond the surrounding facade consisting of n arrow wood boards intersects with the exterior wall . plane. applied horizontally, with the lower edge overlapping the board below . Facade: An exterior building face . Belt course: A projecting horizontal member across a facade or around a Clipped gable: A gable that features a Facade plane: The predominant plane at building. partial roof slope (hip) that meets the ridge; which the physical features of a facade are also known as a jerkinhead. arranged. Bracket: A feature that supports, or appears to support, a projecting element Cornice: The common name for the Fanlight: A semi -circular or round arched such as cornice, eave, or window hood. decorative projecting element at the top window located above a door, often with of a facade; commonly bracketed and radiating muntin patterns . located above a frieze. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 138 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Fenestration: The physical arrangement Hung sash window: A window in which Parapet: The area of a building's exterior of windows on a building's exterior walls . one or more sashes move vertically. walls where they extend above a roof; it can be flat or stepped/shaped. Fix ed windo w: A window sash that does Hyphen: A minor volume that connects not move or open. two larger volumes. Parki ng strip: The narrow area containing grass, plantings, or paving that is located Gable: The upper area of an exterior wall Infill: New construction located within an between a roadway and its parallel that is located between the roof slopes. existing, historic setting . sidewalk . Gambrel roo f: A roof form characterized by two roof slopes: one shallower near the Landscape: The physical and aesthetic P orch: A component of a building that ridge, the other steeper near the eaves. setting of a place, typically defined by shelters a building entrance and contains natural features but also incorporating occupiable space . Half-timbering: Exposed wood framing spatial relationships, views, furnishings, infilled with contrasting materials, such as and circulation routes. Portic o: An exterior structure that shelters plaster or masonry. In the Tudor Revival a building entrance; it is differentiated style, false half-timbering is used for Lite: A piece of glass located within a by a porch bec ause it covers only the aesthetic rather than structural purposes. window. entrance and stoop and does not contain Massing: The distribution of a building's occupiable space . Hipped roo f: A roof form where all sides volume through space. slope between the roof ridge and eaves. Rafter tail: The exterior expression of M untin: A narrow member that separates a roof structure below the eaves. Rafter Histo ricist architecture: Architecture that the lites within a window sash. tails are sometimes applied decorative is heavily influenced by past movements, elements and commonly have shaped or sometimes freely interpreted. Palladian windo w: A window in the form scrolled ends. of a round arch flanked on either side by narrower rectangular windows. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX A - GLOSSARY OF TERMS 139 Setback: The distance between a property Window sash: The overall frame that line and a building, especially at the front contains the glazing and possibly muntins of a lot. of a window. Shed roo f: 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 area s and window/door openings. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 141 Appendix B: Profess orville Property Data A PN 120-28-062 ADDRESS 271 Addison Avenue YEAR BUILT 1896 STYLE / INFLUENCE Vernacular TY INVENTORY 111 LISTIN G Professorville - Category 4 TIONAL REGI LISTING 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 - C ategory 3 Professorville - Contributing 120-18-002 1 310 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 142 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 120-18-005 354-362 Addison Avenue EAR BUILT 1896 I STYLE / INFLUENCE Queen Anne CITY INVENTORY i LISTING N ATIONAL REGISTER 1 LISTING 1l Not applicable - Local listing only NOTES Professorville 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 Revi val Professorville Professor ville - 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 Murr ay 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 143 120-29-004 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 Revi val Professorville - Category 3 Professor ville - Contributing 120-29-006 1036 Bryant Street 1920 Colonial Revival Professorville Professorville - Contributing 120-29-007 1044 Bryant Street 1902 Craftsman Professorville - Categ ory 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 Reviv al 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 144 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES YEAR BUILT STYLE / _ INFLU ' CITY INVENTORY ISTIN N ATIONAL REGISTER l >TI• L 120-18-062 1121 Bryant Street 1892 Colonial Revival/ Classical Revival Professorville - Category 3 Professorville - Contributing J 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 Brya nt Street 1908 Colonial Revival Professorville - Categ ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 145 ---InirWilifFr '1111§PiP CITY INVENTOR TI TION AL REGISTE' ST 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 - Loc al listing only 120-07-043 1225 Cowper Street 1948 Ranch Professor ville 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 Re vival 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 146 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES A PN EAR I BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING NOTES M 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 - C ategory 3 Not applic able - Loc al 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 Frenc h Eclectic Professorville - Categ ory 4 Not applic able - 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 147 CITY INVENTOR TI TIONAL REGISTE' ST, 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 Ro ad 1907 Craftsman Professorville - C ategory 2 Not applic able - Loc al 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 Re vival Professorville Professorville - Contributing 120-29-043 1111 Emerso n Street 1903 Colonial Revival Professorville - Categ ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 148 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES A PN 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 Emerso n Street 1903 Prairie School/ Craftsman Professorville - C ategory 4 Professorville - Contributing Elmore Residence 120-29-054 1135 Emerson Street 1975 Contemporary Shingle Professorville Professor ville - 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 149 A PN 120-18-059 ADDRESS 303 Kingsley Avenue YEAR BUILT 1963 STYLE / INFLUENCE Ranch CITY INVENTORY LISTIN G mu N ATIONAL REGISTER LISTING Professorville - Non- contributing NOTES A MI Professorville 120-18-058 319 Kingsley Avenue 1908 Colonial Revival/ Craftsman Professorville Not applicable - Local listing only 120-69-006" 325-365 Kingsley Avenue 1940 Bungal ows Professorville Not applic able - Loc al listing only 120-20-006 334 Kingsley Av enue 1904 Classical Revival Professorville - Category 2 Professor ville - 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 - C ateg ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 150 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES A PN 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 - C ategory 3 Professorville - Contributing Blake Wilbur Residence 120-07-001 500 Kingsley Av enue 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 - Categ ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 151 CITY INVENTOR TI TIONAL REGISTE' ST, 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 1356 Lincoln Avenue 1896 Craftsman Professorville - C ateg ory 1 Professorville - Contributing 120-18-032 365 Lincoln Avenue 1896 Craftsman/ Shingle Professor ville - 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 Re vival 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 152 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES YEAR BUILT STYLE / INFLUENCE CITY INVENTORY 1 LISTING NATIONAL REGISTER LISTING NOTES I. 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 - C ategory 3 Not applicable - Local listing only Als o 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 M elville 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 Embarcader o Road 120-20-028 335 Melville Avenue 1958 Ranch Professorville Not applicable - Local listing only 120-20-026 340 M elville Avenue 1987 Neotraditional Professor ville 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 153 ---Inir°' ilitr '1111§PiP CITY INVENTOR TI TION AL REGISTE' ST 120-19-028 1 409 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 154 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES A PN EAR I BUILT STYLE / INFLUENCE CITY INVENTORY LISTING NATIONAL REGISTER LISTING In NOTES M 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 Ra mona Street 1908 Vernacular ( altered) Professorville Professorville - Non- contributing 120-29-029 1020 Ramona Street 1907 Craftsman Professorville Professor ville - Contributing 120-29-026 1021 Ramona Street 1907 Colonial Revival Professorville - Category 4 Professorville - Contributing 120-29-030 1024 Ra mona Street 1914 Craftsman Professorville - Categ ory 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 Ra mona Stree t 1907 Classica l Revival Professorville - Categ ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 155 A PN 120-29-022 ADDRESS 1057 Ramona Street YEAR BUILT 1906 STYLE / INFLUENCE Craftsman/ Colonial Revival CITY INVENTORY LISTIN G Professorville - Category 4 N ATIONAL REGISTER LISTING NOTES 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 Coloni al Revival Professorville - Category 2 Professorville - Contributing 120-29-038 1116 Ramona Street 1902 Craftsman/ Colonial Revival Professorville Professorville - Contributing 120-29-019 1125 Ra mona Street 1902 Colonial Revival Professorville Professorville - Contributing 120-29-057 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 156 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES YEAR BUILT STYLE / _ INFLU ' CITY INVENTORY ISTIN N ATIONAL REGISTER >TL: 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 - C ategory 4 Professorville - Non - contributing 120-18-046 1101 Waverley Street 1922 Colonial Revi val/ 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 Bungalo w Professorville Professorville - Non - contributing 120-18-053 1135 Waverley Street 1926 Colonial Revival Professorville - C ateg ory 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 - Categ ory 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 157 ---Inir"''1111F '1111§PiP CITY INVENTOR TI TION AL REGISTE' ST 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 - C ategory 4 Professorville - Contributing 120-19-034 1221 Waverley Street 1993 Neoeclectic Professorville Professor ville - Non - contributing 120-20-023 1240 Waverley Street 1905 Classical Revi val Professorville Professorville - Contributing 120-19-029 1245 Waverley Street 1902 Craftsman Professorville Not applicable - Local listing only 120-20-024 1248 Waverley Stree t 1904 Colonial Revival Professorville Professorville - Contributing 120-19-020 1303 Waverley Street 1912 Mission Revival Professorville - C ateg ory 4 Not applicable - Loc al 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. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 158 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 120-19-017 1331 Waverley Street EAR BUILT 1950 1 STYLE / INFLUENCE Ranch CITY INVENTORY i LISTING N ATIONAL REGISTER 1 LISTING Not applicable - Local listing only NOTES I. Professorville 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 . DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 159 The adjace nt map shows the addresses associated with properties located within the bounda ries of the Professorville Historic District. DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 160 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES 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. 100 80 60 40 20 0 w I I 1890-1899 1900-1909 1910-1919 1920-1929 1930-1939 1940 -19791980 -Present DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB APPENDIX B - PROFESSORVILLE PROPERTY DATA 161 This graph displays the distribution of architectural styles and influences in Professorville, organized according to broad groupings of related styles . 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) DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INDEX 163 Index Accessory buildings (new) Design, form, and scale Placement Additions (historic) Additions (new) to early residences Differentiation from original residences In place of existing non -historic additions Lot placement Massing Materials (cladding, roofing) Roof form Size and scale Windows Additions (new) to later residences Lot placement Materials (cladding, roofing) Roof form Size and scale Windows 7.3 .3 7.3 .2 4.5 .2 4.2.4 4.1 .3 4.1 .1 4.2.1 4.2.2 4.2. 1 4.1. 2 4.2. 3 5.2. 1 5. 2. 2 5.2. 2 5.2. 1 5.2. 2 Air conditioning units and generators Brick masonry Repairing/replacing on early residences Cladding materials Repairing/replacing on early residences Repairing/replacing on later residences Decorative features New features on early residences Reconstructing where missing Repairing/replacing on early residences Demolition Historic buildings Historic additions and features Later residences Disability access ramps Doors Repairing/replacing on early residences Repairing/replacing on later residences Location on early residences 7 .1.5 3 .3.1 3 .1.1 5 .1.1 3 .3.3 3 .3.2 3.3.1 6 .1.1 4 .5.1 6 .1.2 7.2.3 3.2.2 5.1.1 3.2.2 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB 164 PROFESSORVILLE HISTORIC DISTRICT DESIGN GUIDELINES Dormers (new) on early residences Location Materials Size and scale Driveways Garages (historic) Garages (new) Attached to historic residences Attached to later residences Lot placement for new detached Fences Hedges Lifting residences Early residences Later residences Modern -style homes, alterations to Moving and turning residences Early residences Later residences New residential construction Architectural style Differentiation from early residences Doors and porches Lot placement and orientation Massing Materials 4.3 .1 Roof form 4.3 .2 Size/scale 4.3 .1 Windows 7.2 .1 Painting 7.3 .1 Color schemes for historic homes 4.1 .1 5.2 .1 7.3 .2 7.1.2 7.1.2 Color schemes for new residences Color schemes for additions to later residences Historic cladding Patios Planting beds Porches 4.4. 1 Historic 5.3.1 New, on later residences 5.1. 2 Post -consumer products Roof materials 4.4. 2 Repairing/replacing on e arly residences 5.3. 2 Repairing/replacing on later residences 6.4. 1 6.4. 2 6.5. 1 6.2. 1 6.3. 2 Sandblasting Sidewalks (public) Skylights Solar panels Stucco 6.4.1 6.3.3 6.3.1 6.5.2 3.3.4 6.4.3 5.2.2 3.1.1 7.2.4 7.1 .4 3.3.1 5 .2.2 3.4.2 3.1.2 5.1.1 3.1.1 7.4.1 3.4.1 3.4.1 3.1.1 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB INDEX 165 Synthetic siding On early residences On later residences Trees 3.1 .1 5.1 .1 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 DocuSign Envelope ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB THIS PAGE INTENTIONALLY BLANK DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB DocuSi.n Envelo.e ID: B41AOA8C-OED5-41 D5-A542-B6B06A8C75FB Professorville Historic District Design Guidelines Proposed Revisions The following is a list of corrections and clarifications recommended for incorporation into the final Guidelines. Deletions are shown struck through, and additions are underlined. Where changes are proposed to the organization of the guidelines or maps, these are briefly described. Page 5 Insert language required by the Office of Equal Opportunity under the terms of the CLG grant agreement for publications that result from activities that are financed in part with Federal funds. Table of Contents & Chapter 3 “GUIDELINES FOR MAINTAINING, REPAIRING, RESTORING AND REPLACING HISTORIC MATERIALS” Table of Contents & Chapter 5 “Later Periods of Development (1930s1940sPresent)” Introduction, p. 9 “In addition, alterations may be desired in order to adapt the neighborhood’s early homes to contemporary tastes and lifestyles.” Introduction, p. 15 “…new construction should strive to retain the existing property's characterdefining features.” Secretary of the Interior’s Standards for Rehabilitation, p. 23 No change to text. Move forward to the first section in the document. Add introductory paragraph explaining the background of the Standards and relationship to the Guidelines. FAQ, p. 24 “…the guidelines may will be used by the HRB…” “…the HRB may will use the guidelines as a reference document when making nonbinding recommendations to homeowners.” Maps, pp. 31 & 38 No change to text. Update the maps for parcel at APN 12018048 457, which currently shows a single construction period and style/influence, to show two separate construction periods and styles/influences for 457 Kingsley Ave. (19101919; Tudor Revival) and 1140 Cowper St (19401979; Modern). Use colors with greater differentiation in map on p. 31. 4.1.1, 2nd bullet “If a side addition is desiredproposed, design the addition so that it is set back clearly from the primary volume of the residence.” 4.1.2, 2nd bullet “If a taller addition is necessary to meet the needs of current occupantsproposed, such as in the case of an existing onestory cottage, explore strategies to minimize the visual and physical impacts of the addition.” 10/13/16 Page 1 of 2 DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB Professorville Historic District Design Guidelines Proposed Revisions 4.5 “Demolition ofDo Not Remove Significant Historic Features and Volumes on an Early Residence Should Be AvoidedIn Order to Facilitate New Construction. “Selective demolition in order to accommodate new additionsNew Work should be planned carefully to avoid significant impacts to the building’s historic integrity. Whenever possible, elect instead to make alterations and additions in areas where change has already occurred (see 4.1.3).” Drawing, upper, p. 89 No change to text. Revise the drawing to shorten the new side addition to better demonstrate massing compatibility with the historic structure. 5.2.1, 3rd bullet “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 residenceNew garages for later homes should be detached and placed at the rear of the lot whenever possible, which would not be in keeping with Professorville's historic pattern of detached garages located at the backs of lots. An If a new attached garage is proposed for a later home, would preferablyit should be sidefacing and set behind the primary volume of the house so that it is not visible at the front of the residence (see 7.3.2).” 6.1.2, 2nd bullet “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. (See 6.2 6.5 for design compatibility recommendations.)” 6.1.3, 1st and 2nd bullets “Seek out opportunities to subdivide existing large lots into new developable lotsSubdivision of large lots is an acceptable way to preserve existing homes and to create a new developable lot(s) provided the resulting new construction can be accomplished without significantly disrupting important characteristics of the setting and environment of the district and existing residences .” “Take advantage of opportunities toIf constructing a detached secondary dwelling units on an existing lots, avoid disrupting the setting and environment of existing buildings .” Appendix B: Professorville Property Data Add listing for 1156 Ramona Street (currently omitted). 10/13/16 Page 2 of 2 DocuSign Envelope ID: B41A0A8C-0ED5-41D5-A542-B6B06A8C75FB Certificate Of Completion Envelope Id: B41A0A8C0ED541D5A542B6B06A8C75FB Status: Completed Subject: Please DocuSign this document: RESO 9637 adopting professorville design guidelines.pdf Source Envelope: Document Pages: 174 Signatures: 6 Envelope Originator: Certificate Pages: 5 Initials: 0 Kim Lunt AutoNav: Enabled EnvelopeId Stamping: Enabled Time Zone: (UTC-08:00) Pacific Time (US & Canada) 250 Hamilton Ave Palo Alto , CA 94301 kimberly.lunt@cityofpaloalto.org IP Address: 199.33.32.254 Record Tracking Status: Original 11/7/2016 9:39:40 AM Holder: Kim Lunt kimberly.lunt@cityofpaloalto.org Location: DocuSign Signer Events Signature Timestamp Cara Silver cara.silver@cityofpaloalto.org Senior Assistant City Attorney City of Palo Alto Security Level: Email, Account Authentication (None) Using IP Address: 199.33.32.254 Sent: 11/7/2016 9:45:49 AM Viewed: 11/7/2016 11:51:57 AM Signed: 11/7/2016 10:11:51 PM Electronic Record and Signature Disclosure: Accepted: 7/15/2015 5:07:16 PM ID: 11910ed1-61d1-4ff3-9cf9-f4eb5a0768e2 Lalo Perez Lalo.Perez@CityofPaloAlto.org Chief Financial Officer City of Palo Alto Security Level: Email, Account Authentication (None) Using IP Address: 199.33.32.254 Sent: 11/7/2016 10:11:54 PM Viewed: 11/10/2016 9:08:11 AM Signed: 11/10/2016 9:09:17 AM Electronic Record and Signature Disclosure: Not Offered via DocuSign ID: Hillary Gitelman Hillary.Gitelman@CityofPaloAlto.org Security Level: Email, Account Authentication (None) Using IP Address: 199.33.32.254 Sent: 11/10/2016 9:09:19 AM Viewed: 11/10/2016 9:21:45 AM Signed: 11/10/2016 9:22:01 AM Electronic Record and Signature Disclosure: Not Offered via DocuSign ID: James Keene james.keene@cityofpaloalto.org City Manager City of Palo Alto Security Level: Email, Account Authentication (None) Using IP Address: 50.174.200.162 Sent: 11/10/2016 9:22:05 AM Viewed: 11/16/2016 9:36:25 AM Signed: 11/16/2016 9:36:41 AM Electronic Record and Signature Disclosure: Accepted: 4/14/2015 5:40:07 PM ID: 44fe333a-6a81-4cb7-b7d4-925473ac82e3 Signer Events Signature Timestamp Patrick Burt patrick.burt@cityofpaloalto.org Mayor City of Palo Alto Security Level: Email, Account Authentication (None) Using IP Address: 183.131.100.4 Sent: 11/16/2016 9:36:44 AM Viewed: 11/16/2016 3:17:59 PM Signed: 11/16/2016 3:18:09 PM Electronic Record and Signature Disclosure: Not Offered via DocuSign ID: Beth Minor Beth.Minor@CityofPaloAlto.org City Clerk City of Palo Alto Security Level: Email, Account Authentication (None) Using IP Address: 199.33.32.254 Sent: 11/16/2016 3:18:13 PM Viewed: 11/17/2016 5:08:53 PM Signed: 11/17/2016 5:09:10 PM Electronic Record and Signature Disclosure: Not Offered via DocuSign ID: In Person Signer Events Signature Timestamp Editor Delivery Events Status Timestamp Agent Delivery Events Status Timestamp Intermediary Delivery Events Status Timestamp Certified Delivery Events Status Timestamp Carbon Copy Events Status Timestamp Notary Events Timestamp Envelope Summary Events Status Timestamps Envelope Sent Hashed/Encrypted 11/16/2016 3:18:13 PM Certified Delivered Security Checked 11/17/2016 5:08:53 PM Signing Complete Security Checked 11/17/2016 5:09:10 PM 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