HomeMy WebLinkAbout2022-11-14 Ordinance 5570
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Ordinance No. 5570
Ordinance of the Council of the City of Palo Alto Repealing Chapter 16.14 of the
Palo Alto Municipal Code and Adopting a New Chapter 16.14, California Green
Building Code, 2022 Edition, and Local Amendments and Related Findings
The Council of the City of Palo Alto does ORDAIN as follows:
SECTION 1. Chapter 16.14 of the Palo Alto Municipal Code (PAMC) is hereby amended by
repealing in its entirety 16.14 and adopting a new Chapter 16.08 to read as follows:
CHAPTER 16.14
CALIFORNIA GREEN BUILDING STANDARDS CODE,
CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 11
Sections
16.14.010 2022 California Green Building Standards Code, Title 24, Part 11 adopted and
amended.
16.14.020 Cross - References to California Green Building Standards Code.
16.14.030 Local Amendments.
16.16.040 Administration & Enforcement of 2022 California Green Building Standards Code.
16.16.050 Adoption of CHAPTER 1 Administration.
16.16.060 Section 101.4 Appendices.
16.16.070 Section 202 Definitions.
16.14.080 SECTION 301 - voluntary tiers added.
16.14.090 Section 4.106 SITE DEVELOPMENT
16.14.100 Section 4.306 SWIMMING POOL AND SPA COVERS
16.14.110 Section 4.509 Water heater replacement.
16.14.120 Section 702.2 Special inspection.
16.14.130 Residential Projects. Appendix A4 Preface: Green Building Measures for Project
Type and Scope.
16.14.140 Section A4.104 SITE PRESERVATION.
16.14.150 Section A4.105 Deconstruction and Reuse of Existing Materials.
16.14.160 Section A4.106.8 Electric Vehicle (EV) Charging for New Construction.
16.14.170 Section A4.106.9 Bicycle Parking.
16.14.180 Section A4.106.10 Light Pollution Reduction.
16.14.190 Section A4.203.1 Performance Approach for Newly Constructed Buildings.
16.14.200 SectionA4.304.3 Irrigation Metering Device.
16.14.210 Section A4.305 Water Reuse Systems.
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16.14.220 A4.305.4 Additions and alterations.
16.14.230 Section A4.403.1 Frost Protection Foundation Systems.
16.14.240 Section A4.403.2 Reduction in cement use.
16.14.250 Section A4.408.1 Enhanced Construction Waste Reduction.
16.14.260 Section A4.504.1 Compliance with formaldehyde limits.
16.14.270 Section A4.504.3 Thermal insulation.
16.14.280 Non-Residential Projects: Chapter 5 Preface Green Building Requirements for
Project Type and Scope.
16.14.290 Section 5.106.1.1 Local storm water pollution prevention.
16.14.295 Section 5.106.8 Light pollution reduction.
16.14.300 Section 5.106.13 All-Electric Buildings.
16.14.330 Section 5.304.2 Invasive Species Prohibited.
16.14.340 Section 5.306 Non-residential enhanced water budget.
16.14.350 Section 5.307 Cooling Tower Water Use.
16.14.360 Section 5.410.4.6 Energy STAR portfolio manager.
16.14.370 Section 5.410.4.7 Performance reviews energy.
16.14.380 Section 5.410.4.8 Performance reviews water.
16.14.390 Section 5.506 Indoor Air Quality.
16.14.400 Section A5.405.5 Cement and concrete.
16.14.410 Section A5.408 Construction Waste Reduction, Disposal and Recycling.
16.14.420 Section A4.106.8 Electric Vehicle (EV) Charging.
16.14.430 Section A5.106.5.3 Electric Vehicle (EV) Charging for Non-Residential Structures.
16.14.010 2022 California Green Building Standards Code, Title 24, Part 11 adopted and
amended.
The California Green Building Standards Code, 2022 Edition, Title 24, Part 11 of the California Code
of Regulations, together with those omissions, amendments, exceptions and additions thereto, is
adopted and hereby incorporated in this Chapter by reference and made a part hereof the same as
if fully set forth herein.
Unless superseded and expressly repealed, references in City of Palo Alto forms, documents and
regulations to the chapters and sections of the former California Code of Regulations, Title 24, shall
be construed to apply to the corresponding provisions contained within the California Code of
Regulations, Title 24, 2022. Ordinance No. 5481 of the City of Palo Alto and all other ordinances or
parts of ordinances in conflict herewith are hereby suspended and expressly repealed.
Wherever the phrases Green Building Standards or are used in this
code or any ordinance of the City, such phrases shall be deemed and construed to refer and apply
to the California Green Building Standards Code, 2022 Edition, as adopted and amended by this
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chapter.
One copy of the California Green Building Standards Code, 2022 Edition, has been filed for use and
examination of the public in the Office of the Building Official of the City of Palo Alto.
16.04.020 Cross - References to California Green Building Standards Code.
The provisions of this Chapter contain cross-references to the provisions of the California Green
Building Code, 2022 Edition, in order to facilitate reference and comparison to those provisions.
16.16.030 Local Amendments.
The provisions of this Chapter shall constitute local amendments to the cross-referenced provisions
of the California Green Building Standards Code, 2022 Edition, and shall be deemed to replace the
cross-referenced sections of said Code with the respective provisions set forth in this Chapter.
CHAPTER 1 ADMISTRATION
16.16.040 Administration & Enforcement of 2022 California Green Building Standards Code.
Administration and enforcement of this code shall be governed by Chapter 1, Division II of the
2022 California Building Code as amended by Palo Alto Municipal Code Chapter 16.04.
16.16.050 Adoption of CHAPTER 1 Administration.
Chapter 1 Administration of the 2022 California Green Building Code is adopted by the City of
Palo Alto to supplement, to the extent it does not conflict with, Chapter 1, Division II of the 2022
California Building Code, as amended.
16.16.060 Section 101.4 Appendices.
The following Appendix Chapters of the California Green Building Standards Code, 2022 Edition, are
adopted and hereby incorporated in this Chapter by reference and made a part hereof the same as
if fully set forth herein:
A. Appendix A4 - Residential Voluntary Measures (Tier 1 and Tier 2)
B. Appendix A5 - Non-residential Voluntary Measures (Tier 1 and Tier 2)
CHAPTER 2 DEFINITIONS
16.16.070 Section 202 Definitions.
Section 202 of Chapter 2 of the California Green Building Standards Code is amended to include the
following definitions:
ALL-ELECTRIC BUILDING / SITE. A building or parcel of land whose sole source of energy
is electricity and contains no combustion equipment or plumbing for combustion
equipment.
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CPAU.City of Palo Alto Utilities Department.
CALGREEN MANDATORY. Mandatory measures are triggered for projects outlined in
Section 301.1 Scope of this code, as amended.
Projects that only trigger Mandatory measures are not required to fulfill Tier 1 or Tier
2 measures in Appendix A4 and A5.
CALGREEN TIER 1. To achieve Tier 1 status, a project must comply with measures
identified in Appendix A4, Section A4.601.4 for residential projects and Appendix A5,
Section A5.601.2 for non-residential projects.
Projects subject to Tier 1 must fulfill all mandatory measures, all Tier 1 prerequisite
measures and a defined number of Tier 1 elective measures.
CALGREEN TIER 2. To achieve Tier 2 status, a project must comply with requirements
identified in Appendix A4, Section A4.601.5 for residential projects and Appendix A5,
Section A5.601.3 for non-residential projects.
Projects subject to Tier 2 must fulfill all mandatory measures, all Tier 2 prerequisite
measures and a defined number of Tier 2 elective measures.
CALGREEN TIER 1 AND TIER 2 PREREQUISITE MEASURES. Projects subject to Tier 1 or Tier
2 must fulfill all prerequisites as described within Appendix A4, Division A4.6 for
residential projects and Appendix A5, Division A5.6 for non-residential projects.
CALGREEN TIER 1 AND TIER 2 ELECTIVE MEASURES. Projects subject to Tier 1 or Tier 2
must fulfill a defined number of electives as described within Appendix A4, Division A4.6
for residential projects and Appendix A5, Division A5.6 for non-residential projects.
CALGREEN INSPECTOR. An individual certified as a CALGreen Inspector/Plans Examiner
through the International Code Council (ICC), demonstrating knowledge and application
of Green Building concepts during plan review and inspection. For projects that require a
CALGreen Inspector/Plans Examiner verification, the Inspector must be contracted
directly with the owner and may not be a contractor or employee of the design or
construction firm.
CERTIFIED ENERGY ANALYST. A person registered as a Certified Energy Analyst with the
California Association of Building Energy Consultants as of the date of submission of a
Certificate of Compliance as required under Section 10-103 of the Building Energy
Efficiency Standards for Residential and Non-Residential Buildings.
MODEL WATER EFFICIENT LANDSCAPE ORDINANCE. The California Department of Water
Resources Model Water Efficient Landscape Ordinance.
SALVAGE. Salvage means the controlled removal of items and material from a building,
construction, or demolition site for the purpose of on- or off-site reuse, or storage for
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later reuse. Examples include air conditioning and heating systems, columns, balustrades,
fountains, gazebos, molding, mantels, pavers, planters, quoins, stair treads, trim, wall
caps, bath tubs, bricks, cabinetry, carpet, doors, ceiling fans, lighting fixtures, electrical
panel boxes, fencing, fireplaces, flooring materials of wood, marble, stone or tile,
furnaces, plate glass, wall mirrors, door knobs, door brackets, door hinges, marble, iron
work, metal balconies, structural steel, plumbing fixtures, refrigerators, rock, roofing
materials, siding materials, sinks, stairs, stone, stoves, toilets, windows, wood fencing,
lumber and plywood.
SUBSTANTIAL REMODEL (AKA 50-50-50 RULE). Any project or projects that affects the
removal or replacement of 50% or more of the linear length of the existing exterior walls
of the building, and/or 50% or more of the linear length of the existing exterior wall plate
height is raised, and/or 50% or more of the existing roof framing area is removed or
replaced, over a 3-year period.
Any permit(s) applied for will trigger a review of a 3-year history of the project. This
review will result in determining if a substantial remodel has occurred.
The Chief Building Official or designee shall make the final determination regarding
the application if a conflict occurs.
SQUARE FOOTAGE. For application of green building requirements, square footage
refers to all new or altered square footage, including basement areas (7 feet or greater in
height), as calculated based on outer boundary of proposed construction area, including
exterior walls.
CHAPTER 3 GREEN BUILDING
16.14.080 SECTION 301 - voluntary tiers added.
SECTION 301 of Chapter 3 of the California Green Building Standards Code is amended to read:
SECTION 301 GENERAL
301.1 Scope. Buildings shall be designed to include the green building measures specified
as mandatory in the application checklists contained in this code and any applicable local
amendments. In addition, the City requires the use of Voluntary Tiers, as provided in
Appendices A4 and A5, for certain residential and non-residential new construction,
additions, and alterations.
301.1.1 Residential additions and alterations. [HCD] The Mandatory provisions of
Chapter 4 shall be applied to additions and/or alterations of existing residential buildings
where the addition and/or alteration increases the building's conditioned area, volume,
or size. The requirements shall apply only to and/or within the specific area of the addition
or alteration.
Tier 1 adopted (Residential). All residential building additions and/or alterations
exceeding 1000 square feet must meet CALGreen Mandatory plus the Tier 1 measures, as
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amended by this Chapter and as applicable to the scope of work.
For Tier 1 projects, the area of alterations will include any construction or renovation
to an existing structure other than repair or addition. Alterations include raising the plate
height, historic restoration, changes or rearrangements of the structural parts or
elements, and changes or rearrangement of bearing walls and full height partitions.
Normal maintenance, reroofing, painting or wall papering, floor finishes,
replacement-in-kind of mechanical, plumbing and electrical systems, or replacing or
adding new kitchen counter and similar furniture, plumbing fixture to the building are
excluded for the purposes of establishing scope of Tier 1 projects.
The area of alteration should be limited to the footprint of element(s) being altered.
This does not exclude mandatory CALGreen measures. The sum of the footprint of the
elements being altered with respect to Tier 1, shall be calculated using the following
methodology:
1. Raising the plate height: The calculation with respect to raising of the plate
height will be based on the area of the footprint in which the plate height is
being increased. Plate height means the vertical distance measured from the
top of the finished floor to the top of the plates.
2. Historic restoration: The calculation with respect to historic restoration will be
based on the area of work covered in the California Historical Building Code
(Title 24, Part 8).
3. Structural parts or elements: The calculation with respect to changes or
rearrangements of the structural parts or elements will be based on the sum
of the individual footprints of each structural change or rearrangement. The
footprint shall be calculated based on the proposed design and inclusive of any
demolished structural parts or elements.
4. Bearing walls and full height partition: The calculation with respect to changes
or rearrangement of walls and full height partitions will be based on the
footprint of any demolished wall or full height partition and any new wall or
new full height partition.
Exception: Attached and detached Accessory Dwelling Units, ADU conversions of
existing structures shall meet the California Green Building Standards Code
Mandatory measures only.
301.1 Low-rise and high-rise residential buildings. [HCD] The provisions of individual
sections of CALGreen may apply to either low-rise residential buildings, high-rise
residential buildings, or both. Individual sections will be designated by banners to indicate
where the section applies specifically to low-rise only (LR) or high-rise only (HR). When
the section applies to both low-rise and high-rise buildings, no banner will be used.
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301.2.1 Low-Rise residential new construction Tier 2 adopted. All new constructed or
substantial remodel projects must meet CALGreen Mandatory plus Tier 2 measures, as
amended by this ordinance and as applicable to the scope of work.
301.2 Non-residential additions and alterations. [BSC] The provisions of individual
sections of Chapter 5 apply to building non-residential additions of 1,000 square feet or
greater, and/or building alterations with a permit valuation of $200,000 or above (for
occupancies within the authority of California Building Standards Commission). Code
sections relevant to additions and alterations shall only apply to the portions of the
building being added or altered within the scope of the permitted work.
A code section will be designated by a banner to indicate where the code section only
applies to newly constructed buildings [N] or to additions and alterations [A]. When the
code section applies to both, no banner will be used.
Tier 1 adopted. Non-residential alterations (including tenant improvements or
renovations) of 5,000 square feet that include replacement of at least two of the
following: HVAC system, building envelope, hot water system, or lighting system, must
comply with CALGreen Mandatory plus Tier 1 measures, as amended by this Chapter and
as applicable to the scope of work.
Tier 2 adopted. Non-residential additions of 1000 square feet or greater must comply
with CALGreen Mandatory plus Tier 2 measures, as amended by this Chapter and as
applicable to the scope of work.
301.3.1 - 301.3.2 Unmodified.
301.3.3 Non-residential new construction Tier 2 adopted. All new non-residential
construction must meet CALGreen Mandatory plus Tier 2 measures, as amended by this
ordinance and as applicable to the scope of work.
301.6 Special inspector requirements. Residential and non-residential project owners
subject to CALGreen Mandatory, CALGreen Mandatory plus Tier 1, or CALGreen
Mandatory plus Tier 2 measures shall contract a Special Inspector in accordance with
section 702.2 of CALGreen, as amended.
301.7 Low-carbon concrete requirements for Tier 1 and Tier 2 projects. Plain and
reinforced concrete installed as part of any project subject to the application of this code
shall demonstrate compliance with the requirements of PAMC 16.14.240.
CHAPTER 4 RESIDENTIAL MANDATORY MEASURES
Division 4.1 PLANNING AND DESIGN
16.14.090 Section 4.106 SITE DEVELOPMENT
Section 4.106 of Chapter 4 of the California Green Building Standards Code is amended to add
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new subsections, 4.106.5 and 4.106.5.1 as follow:
4.106.5 ALL-ELECTRIC BUILDING / SITE. A building or parcel of land whose sole source of
energy is electricity and contains no combustion equipment or plumbing for combustion
equipment.
4.106.5.1 Full electrification. Full electrification is required for new buildings,
substantial remodels, and new outdoor appliances/equipment such as grill, stove,
barbeque, fireplace, firepit, heater for swimming pool/spa, and similar equipment.
Division 4.3 WATER EFFICIENCY AND CONSERVATION
16.14.100 Section 4.306 SWIMMING POOL AND SPA COVERS
Section 4.306 of Chapter 4 of the California Green Building Standards Code is added to read:
4.306 Swimming Pool and Spa Covers. Swimming pools and spas shall be provided with
a vapor retardant cover.
Division 4.5 ENVIRONMENTAL QUALITY
16.14.110 Section 4.509 Water heater replacement.
Section 4.509 of Chapter 4 of the California Green Building Standards Code is added to read:
4.509 Water heater replacement. For existing residential building remodels or additions
where the gas water heater is replaced or new water heater is added, the new water
heater shall be a heat pump water heater (HPWH).
CHAPTER 7 INSTALLER AND SPECIAL INSPECTOR QUALIFICATIONS
16.14.120 Section 702.2 Special inspection.
Section 702.2 of Chapter 7 of the California Green Building Standards Code is amended to read:
702.2 Green building special inspection. When required by the enforcing agency, the
Green
Building Special Inspectors to provide inspection or other duties necessary to substantiate
compliance with this code. Green Building Special Inspectors shall demonstrate
competence to the satisfaction of the enforcing agency for the particular type of
inspection or task to be performed. In addition to other certifications or qualifications
acceptable to the enforcing agency, the following certifications or education may be
considered by the enforcing agency when evaluating the qualifications of a Special
Inspector. The City shall maintain a list of pre-approved Special Inspectors in accordance
with this section. The owner shall contract a Special Inspector from the pre-approved list
meeting one of the following:
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1. Certification by a national or regional green building program:
ICC Certified CALGreen Inspector/Plans Examiner
2. Other programs acceptable to the enforcing agency.
Note: Special Inspectors shall be independent entities with no financial interest in the
materials or the project they are inspecting for compliance with this code.
APPENDIX A4 RESIDENTIAL VOLUNTARY MEASURES
Division A4.1 PLANNING AND DESIGN
16.14.130 Residential Projects. Appendix A4 Preface: Green Building Measures for Project
Type and Scope.
A preface is added to Chapter A4 of the California Green Building Standards Code to read:
Preface - Green Building Requirements for Project Type and Scope. For design and
construction of residential projects, the City of Palo Alto requires compliance with the
mandatory measures of Chapter 4, in addition to use of Tier 1 and Tier 2 as specified in
Palo Alto Municipal Code Chapter 16.14. See Section 202 for definitions on CALGreen
Mandatory, Tier 1 Prerequisites and Electives, and Tier 2 Prerequisites and Electives. All
elective measures are adopted as written under Appendix A4 unless otherwise indicated
in this Section.
16.14.140 Section A4.104 SITE PRESERVATION.
Section A4.104.1 of Appendix A4 of the California Green Building Standards Code is adopted as a
Tier 1 and Tier 2 elective measure and is amended to read:
A4.104.1 Supervision and Education by a Special Inspector. Individuals with oversight
authority on the project, as defined in section 16.14.090 of this code, who have been
trained in areas related to environmentally friendly development, shall teach green
concepts to other members of
instruction has been provided to all parties associated with the development of the
project. Prior to the beginning of the construction activities, the builder shall receive a
written guideline and instruction specifying the green goals of the project.
Note: Lack of adequate supervision and dissemination of the project goals can result in
negative effects on green building projects. If the theme of green building is not
carried through the project, the overall benefit can be substantially reduced by the
lack of knowledge and information provided to the various entities involved with
the construction of the project.
16.14.150 Section A4.105 Deconstruction and Reuse of Existing Materials.
Section A4.105 of Appendix A4 of the California Green Building Standards Code is not adopted as
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an elective measure and is amended to read:
Section A4.105.1 Chapter 5.24 of Title 5 of the Municipal Code. See Chapter 5.24 of the
Municipal Code for the local deconstruction requirements.
Section A4.105.2 is adopted as a Tier 1 and Tier 2 elective measure.
A4.105.2 Reuse of materials. Nonhazardous materials which can be easily reused
include but are not limited to the following:
1. Light fixtures
2. Plumbing fixtures
3. Doors and trim
4. Masonry
5. Electrical devices
6. Appliances
7. Foundations or portions of foundations
Note: Reused material must be installed to comply the appropriate Title 24 provisions.
16.14.160 Section A4.106.8 Electric Vehicle (EV) Charging for New Construction.
Section A4.106.8 of Appendix A4 of the California Green Building Standards Code is not adopted
as a Tier 1 and Tier 2 elective measure. Projects must comply with the Mandatory measures for
electric vehicle supply equipment (EVSE) as amended in PAMC 16.14.420.
16.14.170 Section A4.106.9 Bicycle Parking.
Section A4.106.9 of Appendix A4 of the California Green Building Standards Code is not adopted
as a Tier 1 and Tier 2 elective measure. Projects must comply with the bicycle parking
requirements in the Palo Alto Municipal Code.
16.14.180 Section A4.106.10 Light Pollution Reduction.
Section A4.106.10 is added and adopted as a Tier 1 and Tier 2 elective measure for all covered
projects and is amended to read:
A4.106.10 Light pollution reduction. Outdoor lighting systems shall be designed and
installed to comply with the following:
1. The minimum requirements in the California Energy Code for Lighting Zones 1-4
as defined in Chapter 10 of the California Administrative Code; and
2. Backlight, Uplight and Glare (BUG) ratings as defined in IES TM-15-11; and
3. Allowable BUG ratings not exceeding those shown in Table A4.106.10; or
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4. Comply with a local ordinance lawfully enacted pursuant to Section 101.7 of this
code, whichever is more stringent.
Projects may use an approved equal reference standard for light fixtures where BUG
ratings are unavailable.
Exceptions:
1. Luminaires that qualify as exceptions to the California Energy Code.
2. Emergency lighting.
3. One- and two-family dwellings.
Note: The International Dark-Sky Association (IDA) and the Illuminating Engineering
Society of North America (IESNA) have developed a Model Lighting Ordinance (MLO).
The MLO was designed to help municipalities develop outdoor lighting standards that
reduce glare, light trespass, and skyglow. The model ordinance and user guides for
the ordinance may be accessed at the International Dark-Sky Association web site.
Division A4.2 ENERGY EFFICIENCY
16.14.190 Section A4.203.1 Performance Approach for Newly Constructed Buildings.
Section A4.203.1 of Appendix A4 of the California Green Building Standards Code is not adopted
as a Tier 1 and Tier 2 elective measure. Projects shall comply with Chapter 16.17 of the Palo Alto
Municipal Code (Energy Code).
Division A4.3 WATER EFFICIENCY AND CONSERVATION
16.14.200 SectionA4.304.3 Irrigation Metering Device.
Section A4.304.3 of Appendix A4 of the California Green Building Standards Code is adopted as a
Tier 1 and Tier 2 elective measure and is amended to read:
A4.304.3 Irrigation Metering Device. Dedicated irrigation meters from CPAU are to be
installed in all new construction and rehabilitated landscapes when the landscape is
greater than 1,000 square feet.
16.14.210 Section A4.305 Water Reuse Systems.
Sections A4.305.1, A4.305.2, and A4.305.3 of Appendix A4 of the California Green Building
Standards Code are adopted as Tier 1 and Tier 2 elective measures and are amended to read:
A4.305.1 Graywater. Alternative plumbing piping is installed to permit the discharge from
the clothes washer and other fixtures (except toilets and kitchen sinks) to be used for an
irrigation system in compliance with the California Plumbing Code. In the event that the
whole house graywater system is installed in compliance with the California Plumbing
Code, then this measure shall count as 3 electives.
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A4.305.2 Recycled Water Piping. Based on projected availability, dual water piping is
installed for future use of recycled water at the following locations:
1. Interior piping for the use of recycled water is installed to serve all water closets,
urinals, and floor drains.
2. Exterior piping is installed to transport recycled water from the point of
connection to the structure. Recycled water systems shall be designed and
installed in accordance with the California Plumbing Code.
A4.305.3 Recycled water for landscape irrigation. Recycled water piping is used for
landscape irrigation.
16.14.220 A4.305.4 Additions and alterations.
Section A4.305.4 is added as Tier 1 and Tier 2 prerequisite and amended to read:
A4.305.4 Additions and alterations. All multifamily residential additions and alterations
must install recycled water infrastructure for irrigation when the landscape area exceeds
1,000 square feet.
Division A4.4 MATERIAL CONSERVATION AND RESOUCE EFFICIENCY
16.14.230 Section A4.403.1 Frost Protection Foundation Systems.
Sections A4.403.1 is not adopted as a Tier 1 and Tier 2 elective measure.
16.14.240 Section A4.403.2 Reduction in cement use.
Section A4.403.2 of Appendix A4 of the California Green Building Standards Code is adopted as a
Mandatory measure for all Tier 1 and Tier 2 projects and is amended to read:
A4.403.2 Low Carbon Concrete Requirements.
A4.403.2.1 Purpose. The purpose of this chapter is to provide practical standards and
requirements for the composition of concrete, as defined herein, that maintains
adequate strength and durability for the intended application and at the same time
reduces greenhouse gas emissions associated with concrete composition. This code
includes pathways for compliance with either reduced cement levels or lower-emission
supplementary cementitious materials.
A4.403.2.2 Definitions. For the application of this section the following definitions shall
apply:
Concrete. Concrete is any approved combination of mineral aggregates bound together
into a hardened conglomerate in accordance with the requirements of this code.
Environmental product declaration (EPD). EPDs present quantified environmental
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information on the life cycle of a product to enable comparisons between products
fulfilling the same function. EPDs must conform to ISO 14025, and EN 15804 or ISO 21930,
and have at least a "cradle to gate" scope (which covers product life cycle from resource
extraction to the factory).
Upfront embodied carbon (embodied carbon). The greenhouse gasses emitted in
material extraction, transportation and manufacturing of a material corresponding to life
cycle stages A1 (extraction and upstream production), A2 (transportation), and A3
(manufacturing). Definition is as noted in ISO 21930 and as defined in the Product
Category Rule for Concrete by NSF dated February 22nd, 2019.
https://www.nsf.org/newsroom_pdf/concrete_pcr_2019.pdf
A4.403.2.3. Compliance. Compliance with the requirements of this chapter shall be
demonstrated through any of the compliance options in Sections 4.403.2.3.2 through
4.403.2.3.5:
Table A4.403.2.3 Cement and Embodied Carbon Limit Pathways
A4.403.2.3.1 Allowable Increases.
(1) Cement and Embodied Carbon Limit Allowances. Cement or Embodied Carbon limits
shown in Table A4.403.2.3 can be increased by 30% for concretes demonstrated to the
Building Official as requiring high early strength. Such concretes could include, but are not
limited to, precast, prestressed concrete; beams and slabs above grade; and shotcrete
(2) Approved Cements. The maximum cement content may be increased proportionately
above the tabulated value when using an approved cement, or blended cement,
demonstrated by approved EPD to have a plant-specific EPD lower than 1040 kg
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CO2e/metric ton. The increase in allowable cement content would be (1040 /
plant=specific EPD) %.
A4.403.2.3.2 Cement Limit Method Mix. Cement content of a concrete mix using this
method shall not exceed the value shown in the Table A4.403.2.3. Use of this method is
limited to concrete with specified compressive strength not exceeding 5,000 psi.
A4.403.2.3.3 Cement Limit Method Project. Total cement content shall be based on
total cement usage of all concrete mix designs within the same project. Total cement
content for a project shall not exceed the value calculated according to Equation
A4.403.2.3.3.
Equation A4.403.2.3.3:
Cem proj < Cem allowed
where
Cem proj n v n and Cem allowed lim v n
and
n = the total number of concrete mixtures for the project
Cem n = the cement content for mixture n , kg/m 3 or lb/yd 3
Cem lim = the maximum cement content for mixture n per Table A4.403.2.3, kg/m 3 or
lb/yd 3
v n = the volume of mixture n concrete to be placed, yd 3 or m 3
Applicant can use yd 3 or m 3 for calculation, but must keep same units throughout
A4.403.2.3.4. Embodied Carbon Method Mix. Embodied carbon of a concrete mix,
based on an approved environmental product declaration (EPD), shall not exceed the value
given in Table A4.403.2.3.
A4.403.2.3.5. Embodied Carbon Method Project. Total embodied carbon (EC proj ) of all
concrete mix designs within the same project shall not exceed the project limit (EC allowed )
determined using Table A4.403.2.3 and Equation A4.403.2.3.5.
Equation A4.403.2.3.5:
EC proj < EC allowed
where
EC proj n v n and EC allowed lim v n
and
n = the total number of concrete mixtures for the project
EC n = the embodied carbon potential for mixture n per mixture EPD, kg/m 3
EC lim = the embodied carbon potential limit for mixture n per Table A4.403.2.3, kg/m3
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v n = the volume of mixture n concrete to be placed, yd 3 or m 3
Applicant can use yd 3 or m 3 for calculation, but must keep same units throughout.
A4.403.2.3.6. Enforcement.
As a condition prior to the issuance of every building permit involving placement of
concrete, the permit applicant shall be required to submit a completed low-carbon
concrete compliance form that shall be provided by and reviewed for compliance by the
building department prior to issuing the permit.
As a condition of such building permits, and prior to approving construction inspections
following placement of concrete, the permit applicant shall be required to submit batch
certificates and/or EPDs provided by the concrete provider that demonstrate compliance
with the low-carbon concrete compliance form on file with the building permit. The batch
certificates and/or EPDs shall be reviewed for compliance by the building department prior
to approving any further inspections.
When deviations from compliance with this section occur, the chief building official or his
designee is authorized to require evidence of equivalent carbon reductions from the
portions of remaining construction of the project to demonstrate alternative compliance
with the intent of this chapter.
For projects involving placement of concrete by, or on behalf of, a public works, parks, or
similar department the director of such department, or his/her assignee, shall maintain
accurate records of the total volume (in cubic yards) of all concrete placed, as well as the
total compliant volume (in cubic yards) of all concrete placed, and shall report this data
annually to the governing body in a form expressing an annual compliance percentage
derived from the quotient of total compliant concrete volume placed divided by total
concrete volume placed.
A4.403.2.3.7. Exemptions.
(a) Hardship or infeasibility exemption. If an applicant for a project subject to this chapter
believes that circumstances exist that make it a hardship or infeasible to meet the
requirements of this chapter, the applicant may request an exemption as set forth below.
In applying for an exemption, the burden is on the applicant to show hardship or
infeasibility. The applicant shall identify in writing the specific requirements of the
standards for compliance that the project is unable to achieve and the circumstances that
make it a hardship or infeasible for the project to comply with this chapter. Circumstances
that constitute hardship or infeasibility may include, but are not limited to the following:
(1) There is a lack of commercially available material necessary to comply with this chapter;
(2) The cost of achieving compliance is disproportionate to the overall cost of the project;
(3) Compliance with certain requirements would impair the historic integrity of buildings
listed on a local, state or federal list or register of historic structures as regulated by the
California Historic Building Code (Title 24, Part 8).
(b) Granting of exemption. If the chief building official determines that it is a hardship or
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infeasible for the applicant to fully meet the requirements of this chapter and that granting
the requested exemption will not cause the building to fail to comply with the California
Building Standards Code, the chief building official shall determine the maximum feasible
threshold of compliance reasonably achievable for the project. In making this
determination, the chief building official shall consider whether alternate, practical means
of achieving the objectives of this chapter can be satisfied. If an exemption is granted, the
applicant shall be required to comply with this chapter in all other respects and shall be
required to achieve the threshold of compliance determined to be achievable by the chief
building official.
(c) Denial of exception. If the chief building official determines that it is reasonably
possible for the applicant to fully meet the requirements of this chapter, the request shall
be denied and the applicant shall be notified of the decision in writing. The project and
compliance documentation shall be modified to comply with the standards for compliance.
16.14.250 Section A4.408.1 Enhanced Construction Waste Reduction.
Section A4.408.1 of Appendix A4 of the California Green Building Standards Code is adopted as a
mandatory measure and is amended to read:
A4.408.1 Enhanced Construction Waste Reduction. Nonhazardous construction and
demolition debris generated at the site is diverted to recycle or salvage in compliance with
the following:
Projects with a given valuation of $25,000 or more must have at least an 80-percent
reduction. Any mixed recyclables that are sent to mixed-waste recycling facilities shall
include a qualified third party verified facility average diversion rate. Verification of
diversion rates shall meet minimum certification eligibility guidelines, acceptable to the
local enforcing agency.
Exceptions:
1. Residential stand-alone mechanical, electrical or plumbing permits.
2. Commercial stand-alone mechanical, electrical or plumbing permits.
A4.408.1.1 Documentation. Documentation shall be provided to the enforcing agency
which demonstrates compliance with all construction and demolition waste reduction
requirements.
Division A4.5 ENVIRONMENTAL QUALITY
16.14.260 Section A4.504.1 Compliance with formaldehyde limits.
Section A4.504.1 of Appendix A5 of the California Green Building Standards Code is adopted as a
Tier 1 and Tier 2 elective measure.
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16.14.270 Section A4.504.3 Thermal insulation.
Section A4.504.3 of Appendix A5 of the California Green Building Standards Code is not adopted
as a Tier 1 and Tier 2 prerequisite. Section A4.504.3 is adopted as a Tier 1 and Tier 2 elective
measure.
CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES
Division 5.1 PLANNING AND DESIGN
16.14.280 Non-Residential Projects: Chapter 5 Preface Green Building Requirements for
Project Type and Scope.
A Preface is added to Chapter 5 of the California Green Building Standards Code to read:
Preface Green Building Requirements for Project Type and Scope. For design and
construction of non-residential projects, the City requires compliance with the mandatory
measures of Chapter 5, in addition to use of Tier 1 and Tier 2 as specified in Palo Alto
Municipal Code Chapter 16.14. See Section 202 for definitions on CALGreen
MANDATORY, Tier 1 prerequisites and electives, and Tier 2 prerequisites and electives.
All elective measures are adopted as written under Appendix A5 unless otherwise
indicated in this Section.
16.14.290 Section 5.106.1.1 Local storm water pollution prevention.
Section 5.106.1.1 of Chapter 5 of the California Green Building Standards Code is amended to
read:
5.106.1.1 Local ordinance. Newly constructed projects and additions shall comply with
additional storm water pollution prevention measures as applicable. (See Chapter 16.11,
Storm Water Pollution Prevention, of the Palo Alto Municipal Code.)
16.14.295 Section 5.106.8 Light pollution reduction.
Section 5.106.8 of Chapter 5 of the California Green Building Standards Code is amended to read:
5.106.8 Light pollution reduction. Outdoor lighting systems shall be designed and
installed to comply with the following:
1. The minimum requirements in the California Energy Code for Lighting Zones 0-4 as
defined in Chapter 10, Section 10-114 of the California Administrative Code; and
2. Backlight (B) ratings as defined in IES TM-15-11 (shown in Table A-1 in Chapter 8);
3. Uplight and Glare ratings as defined in California Energy Code (shown in Tables
130.2-A and 130.2-B in Chapter 8); and
4. Allowable BUG ratings not exceeding those shown in Table 5.106.8 [N]; or
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5. Comply with a local ordinance lawfully enacted pursuant to Section 101.7,
whichever is more stringent.
Projects may use an approved equal reference standard for light fixtures where BUG
ratings are unavailable.
Exceptions:
1. Luminaires that qualify as exceptions in Section 103.2(b) and 140.7 of the
California Energy Code.
2. Emergency lighting.
3. Building facade meeting the requirements in Table 140.7-B of the California
Energy Code, Part 6.
4. Custom lighting features as allowed by the local enforcing agency, as permitted
by Section 101.8 Alternate materials, designs and methods of construction.
16.14.300 Section 5.106.13 All-Electric Buildings.
Section 5.106.13 5 of Chapter 5 of the California Green Building Standards Code is as a mandatory
measure added to read:
5.106.13 ALL-ELECTRIC BUILDING / SITE. A building or parcel of land whose sole source
of energy is electricity and contains no combustion equipment or plumbing for
combustion equipment.
5.106.13.1 Full electrification. Full electrification is required for new buildings
substantial remodels, and new outdoor appliances/equipment such as grill, stove,
barbeque, fireplace, firepit, heater for swimming pool/spa, and similar equipment.
Division 5.3 WATER EFFICIENCY AND CONSERVATION
16.14.330 Section 5.304.2 Invasive Species Prohibited.
Section 5.304.2 of Chapter 5 of the California Green Building Standards Code is added as
mandatory measure to read:
5.304.2 Invasive species prohibited. All non-residential new construction, additions, and
alterations shall not install invasive species in a landscape area of any size.
16.14.340 Section 5.306 Non-residential enhanced water budget.
Section 5.306 of Chapter 5 of the California Green Building Standards Code is added as mandatory
measure to read:
5.306 Non-residential enhanced water budget. Non-residential buildings anticipated to
use more than 1,000 gallons of water a day shall complete an Enhanced Water Budget
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Calculator as established by the Chief Building Official or designee.
16.14.350 Section 5.307 Cooling Tower Water Use.
Section 5.307 Cooling Tower Water Use is added as mandatory to read:
5.307 COOLING TOWER WATER USE
5.307.1. Cooling Tower Water Use in Highrise Residential or Non-Residential Buildings.
Cooling tower water use must meet the conditions as follows and as outlined in Palo Alto
Municipal Code Section 16.08.100. Projects are required to perform a potable water
analysis at the site to meet the maximum concentration of parameters noted in Table
5.307.1
Table 5.307.1
Ca (as CaCO3) 600 ppm
Total alkalinity 500 ppm
SiO2 150 ppm
Cr 300 ppm
Conductivity 3300 Us/cm
Calculate maximum number of cycles that can be achieved with these
levels of concentration shall be included in the plumbing design plans.
Division 5.4 MATERIAL CONSERVATION AND RESOUCE EFFICIENCY
16.14.360 Section 5.410.4.6 Energy STAR portfolio manager.
Section 5.410.4.6 of Chapter 5 of the California Green Building Standards is added as mandatory
measure to read:
5.410.4.6 Energy STAR portfolio manager. All non-residential projects exceeding
$100,000 valuation must provide evidence of an Energy STAR Portfolio Manager project
profile for both water and energy use prior to Permit Issuance, acquire an Energy STAR
Portfolio Manager Rating, and submit the rating to the City of Palo Alto once the project
has been occupied after 12 months.
16.14.370 Section 5.410.4.7 Performance reviews energy.
Section 5.410.4.7 of Chapter 5 of the California Green Building Standards is added to read:
5.410.4.7 Performance reviews energy. All projects over 10,000 square feet. The City
reserves the right to conduct a performance review, no more frequently than once every
five years unless a project fails review, to evaluate the building's energy use to ensure
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that resources used at the building and/or site do not exceed the maximum allowance set
forth in the rehabilitation or new construction design. Following the findings and
recommendations of the review, the City may require adjustments to the energy usage
or energy-using equipment or systems if the building is no longer compliant with the
original design. Renovation or rehabilitation resulting from such audit activity shall be
considered a project and shall be subject to applicable documentation submittal
requirements of the City. This section is effective only for those projects for which a
building permit was issued after January 1, 2009.
16.14.380 Section 5.410.4.8 Performance reviews water.
Section 5.410.4.8 of Chapter 5 of the California Green Building Standards is added to read:
5.410.4.8 Performance reviews water. All sites greater than one acre: The City reserves
the right to conduct performance reviews, no more frequently than once every five years
unless a project fails review, to evaluate water use to ensure that resources used at the
building and/or site do not exceed a maximum allowance set forth in the rehabilitation or
new construction design. Water use reviews may be initiated by CPAU, or as a
coordinated effort between the CPAU and the Santa Clara Valley Water District (SCVWD),
or as part of SCVWD's established water conservation programs. Following the findings
and recommendations of the review, the City may require adjustments to irrigation
usage, irrigation hardware, and/or landscape materials to reduce consumption and
improve efficiency. Renovation or rehabilitation resulting from such audit activity shall be
considered a project and shall be subject to applicable documentation submittal
requirements of the City.
16.14.390 Section 5.506 Indoor Air Quality.
Section 5.506.4 of Chapter 5 of the California Green Building Standards is added as mandatory
measure to read:
Section 5.506.4 Indoor Air Quality Management Plan. All commercial and multi- family
projects must submit an Indoor Air Quality Management Plan (IAQ) with building permit
application in accordance with the Sheet Metal and Air Conditioning Contractors National
Association (SMACNA IAQ) Guidelines for Occupied Buildings Under Construction, 2nd
edition ANSI/SMACNA 008-2008.
APPENDIX A5 NONRESIDENTIAL VOLUNTARY MEASURES
Division A5.4 MATERIAL CONSERVATION AND RESOUCE EFFICIENCY
16.14.400 Section A5.405.5 Cement and concrete.
Section A5.405.5 of Appendix A5 of the California Green Building Standards Code is adopted as
a Mandatory measure for Tier 1 and Tier 2 projects and is amended to read:
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A5.405.5 Cement and Concrete. Use cement and concrete made with recycled products
and complying with the following sections and requirements per PAMC Chapter
16.14.240.
16.14.410 Section A5.408 Construction Waste Reduction, Disposal and Recycling.
Section A5.408 of Appendix A5 of the California Green Building Standards Code is adopted as a
Mandatory measure for Tier 2 projects and is amended to read:
A5.408.3.1 Waste enhanced construction waste reduction. (80% construction waste
reduction) as a mandatory requirement for all non-residential construction, including new
construction, additions, and alterations, as long as the construction has a valuation of
$25,000 or more. Non-residential projects with a lower valuation shall remain subject to
California Green Building Standards Code Chapter 5 mandatory measures.
Exceptions:
1. Residential stand-alone mechanical, electrical or plumbing permits.
2. Commercial stand-alone mechanical, electrical or plumbing permits.
A5408.3.1.1 - Deleted
A4.408.1.2 Documentation. Documentation shall be provided to the enforcing agency
which demonstrates compliance with all construction and demolition waste reduction
requirements.
APPENDIX A4 RESIDENTIAL VOLUNTARY MEASURES - EVSE
Division A4.1 PLANNING AND DESIGN
16.14.420 Section A4.106.8 Electric Vehicle (EV) Charging.
Section A4.106.8 of the California Green Building Standards Code is deleted in its entirety and
adopted as a mandatory measure to read:
A4.106.8 Electric Vehicle (EV) Charging for Residential Structures. Newly constructed
single family and multifamily residential structures, including residential structures
constructed as part of a mixed-use development, shall comply with the following
requirements for electric vehicle supply equipment (EVSE). All parking space calculations
under this section shall be rounded up to the next full space. The requirements stated in
this section are in addition to those contained in Section 4.106.4 of the California Green
Building Standards Code. In the event of a conflict between this section and Section
4.106.4 of the California Green Building Standards Code, the more robust EV Charging
requirements shall prevail.
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A4.106.8.1 New one-family, two-family and townhouse dwellings. The following
standards apply to newly constructed detached and attached single family, two-family
and townhouse residences.
(a) In general. The property owner shall provide One (1) Level 2 electrical vehicle
supply equipment (EVSE) or one (1) EV ready space (Low Power Level 2 EV
Charging Receptacle is acceptable provided that the infrastructure comply with
section 4.106.4.1) for each residence (except for accessory dwelling unit (ADU)).
(b) Location. The proposed location of a charging station may be internal or external
to the dwelling and shall be in close proximity to an on-site parking space
consistent with city regulations.
A4.106.8.2 New Multi-Family Dwellings. The following standards apply to newly
constructed residences in a multi-family residential structure.
(a) Resident parking. The property owner shall provide at least one (1) Level 2
electrical vehicle supply equipment (EVSE) or one (1) Level 2 EV Ready space for
each residential unit in the structure (Low Power Level 2 EV Charging Receptacle
is acceptable for 60% of the total EV parking spaces) .
(b) Guest parking. The property owner shall provide EV Capable Space, EV-Ready
Space, or EVSE Installed, for at least 25% of guest parking spaces, among which at
least 5% (and no fewer than one) shall be EVSE Installed.
(c) Accessible spaces. Projects shall comply with the 2022 California Building Code
requirements for accessible electric vehicle parking.
(d) Minimum total circuit capacity. The property owner shall ensure sufficient circuit
capacity, as determined by the Chief Building Official or designee, to support the
EV requirements specified in (a) and (b) above.
(e) Location. The EVSE, receptacles, and/or raceway required by this section shall be
placed in locations allowing convenient installation of and access to EVSE. In
addition, if parking is deed-restricted to individual residential units, the EVSE or
receptacles required by subsection (a) shall be located such that each unit has
access to its own EVSE or receptacle. Location of EVSE or receptacles shall be
consistent with all city regulations.
A4.106.8.3 New Hotels and Motels. The following standards apply to newly constructed
hotels.
(a) In general. The property owner shall provide at least 30% EV Ready Space and at
least 10% Level 2 EVSE installed for of the total parking spaces.
(b) Accessible spaces. Projects shall comply with the 2022 California Building Code
requirements for accessible electric vehicle parking.
(c) Minimum total circuit capacity. The property owner shall ensure sufficient circuit
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capacity, as determined by the Chief Building Official or designee , to support a
Level 2 EVSE in every location where EV-Ready space or EVSE Installed is required.
(d) Location. The EVSE and/or receptacles, required by this section shall be placed in
locations allowing convenient installation of and access to EVSE. Location of EVSE
or receptacles shall be consistent with all City guidelines, rules, and regulations.
APPENDIX A5 NONRESIDENTIAL VOLUNTARY MEASURES
Division A5.1 PLANNING AND DESIGN
16.14.430 Section A5.106.5.3 Electric Vehicle (EV) Charging for Non-Residential Structures.
Section A5.106.5.3 of the California Green Building Standards Code is adopted as a mandatory
measure and amended to read:
A5.106.5.3 Electric Vehicle (EV) Charging for Non-Residential Structures. New non-
residential structures shall comply with the following requirements for electric vehicle
supply equipment (EVSE). All parking space calculations under this section shall be
rounded up to the next full space. The requirements stated in this section are in addition
to those contained in Section 5.106.5.3 of the California Green Building Standards Code.
In the event of a conflict between this section and Section 5.106.5.3, the more robust EV
Charging requirements shall prevail.
A5.106.5.3.5 Non-Residential Structures Other than Hotels. The following standards
apply to newly constructed non-residential structures other than hotels.
In general. For building with 10 to 20 parking spaces, the property owner shall provide
at least 20% EV Capable or EVSE-Ready space, and at least 20% Level 2 EVSE installed of
the total parking spaces.
For building with over 20 parking spaces, the property owner shall provide at least 15%
EV Capable or EVSE-Ready space, and at least 15% EVSE installed for of the total parking
spaces
Accessible spaces. Projects shall comply with the 2022 California Building Code
requirements for accessible electric vehicle parking.
Minimum total circuit capacity. The property owner shall ensure sufficient circuit
capacity, as determined by the Chief Building Official or designee , to support a Level 2
EVSE in every location where EVSE Capable space, EVSE-Ready space or EVSE Installed is
required.
Location. The EVSE, receptacles, and/or raceway required by this section shall be placed
in locations allowing convenient installation of and access to EVSE. Location of EVSE or
receptacles shall be consistent with all city regulations.
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SECTION 2. The Council adopts the findings for local amendments to the California Green Building
Standards Code, 2022 Edition, attached hereto
reference.
SECTION 3. If any section, subsection, clause or phrase of this Ordinance is for any reason held
to be invalid, such decision shall not affect the validity of the remaining portion or sections of the
Ordinance. The Council hereby declares that it should have adopted the Ordinance and each
section, subsection, sentence, clause or phrase thereof irrespective of the fact that any one or
more sections, subsections, sentences, clauses or phrases be declared invalid.
SECTION 4. The Council finds that this project is exempt from the provisions of the California
it can be seen with certainty that there is no possibility that the amendments herein adopted will
have a significant effect on the environment.
INTRODUCED: October 17, 2022
PASSED: November 14, 2022
AYES: BURT, CORMACK, DUBOIS, FILSETH, KOU, STONE, TANAKA
NOES:
ABSENT:
ABSTENTIONS:
ATTEST:
____________________________ ____________________________
City Clerk Mayor
APPROVED AS TO FORM: APPROVED:
____________________________ ____________________________
Assistant City Attorney City Manager
____________________________
Director of Planning and
Development Services
____________________________
Director of Administrative Services
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Exhibit A
FINDINGS FOR LOCAL AMENDMENTS TO CALIFORNIA GREEN BUILDING STANDARD CODE
TITLE 24, PART 11
Section 17958 of the California Health and Safety Code provides that the City may make changes
to the provisions of the California Building Standards Code. Sections 17958.5 and 17958.7 of the
Health and Safety Code require that for each proposed local change to those provisions of the
California Building Standards Code which regulate buildings used for human habitation, the City
Council must make findings supporting its determination that each such local change is reasonably
necessary because of local climatic, geological, or topographical conditions.
Local building regulations having the effect of amending the uniform codes, which were adopted
by the City prior to November 23, 1970, were unaffected by the regulations of Sections 17958,
17958.5 and 17958.7 of the Health and Safety Code. Therefore, amendments to the uniform
codes which were adopted by the City Council prior to November 23, 1970 and have been carried
through from year to year without significant change, need no required findings. Also,
amendments to provisions not regulating buildings used for human habitation do not require
findings.
Code: California Green Building Standard Code, Title 24, Part 11
Chapter(s),
Sections(s),
Appendices
Title Add Deleted Amended Justification
(See below of keys)
Ch. 1 ADMINSTRATION A
101.4 Appendices A
Administration and Enforcement A
202 Definition A
301 Voluntary tiers added C, E
301.1 Scope C, E
301.1.1 Residential additions and alterations C, E
301.2 Low-rise and high-rise residential buildings C, E
301.2.1 Low-Rise residential new construction
Tier 2 adopted
C, E
301.3 Non-residential additions and alterations C, E
301.3.3 Non-residential new construction Tier 2 C, E
301.6 Special inspector requirements C, E
301.7 Low-carbon concrete requirements for all
projects
C, E
4.106 Site Development C, E
4.306 Swimming pool and spa covers C, E
4.509 Heat pump water heater C, E
702.2 Special Inspection C, E
A4.104 Site preservation C, E
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A4.105 Deconstruction and reuse of existing
materials
C, E
A4.106.8 Electric Vehicle (EV) Charging for New
Construction
C, E
A4.106.9 Bicycle parking C, E
A4.106.10 Light pollution reduction C, E
A4.203.1 Performance Approach for Newly
Constructed Buildings
C , E
A4.304.3 Irrigation Metering Device C , E
A4.305 Water reuse systems C, E
A4.403.1 Frost protection foundation systems C, E
A4.403.2 Reduction in cement use C, E
A4.408.1 Enhanced Construction Waste Reduction C, E
A4.504.1 Compliance with formaldehyde limits C, E
A4.504.3 Thermal insulation C, E
5.106.1.1 Local stormwater pollution prevention C, E
5.106.8 Light pollution reduction C
5.106.13 All-electric buildings E
5.304.2 Invasive Species C, E
5.306 Non-residential enhanced water
budget
E
5.307 Cooling tower water use C
A5.405.5 Cement and Concrete C, E
A5.408 Construction Waste Reduction, Disposal
and Recycling
C, E
5.410.4.6 Energy STAR portfolio manager C, E
5.410.4.7 Performance reviews energy C, E
5.410.4.8 Performance reviews water C, E
5.506.4 Indoor Air Quality Management Plan C, E
A4.106.8 Electrical Vehicle (EV) Charging for
Residential Structures
C, E
A4.106.8.1 New One-family, two-family and
townhouse dwellings
C, E
A4.106.8.2 New Multi-family Dwellings C, E
A4.106.8.3 New hotels C, E
A5.106.5.3 Electric Vehicle (EV) Charging for non-
residential structures
C, E
A5.106.5.3.5 Non-Residential Structures other than
hotels
C, E
Appendix
A4
Residential Voluntary Measures
C, E
Appendix
A5
Non-Residential Voluntary Measures
C, E
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Key to Justification for Amendments to Title 24 of the California Code of Regulations
A This is an administrative amendment to clarify and establish civil and administrative
procedures, regulations, or rules to enforce and administer the activities by the Palo Alto
Building Inspection Department. These administrative amendments do not need to meet
HSC 18941.5/17958/13869 per HSC 18909(c).
C This amendment is justified on the basis of a local climatic condition. The seasonal climatic
conditions during the late summer and fall create severe fire hazards to the public health
and welfare in the City. The hot, dry weather frequently results in wild land fires on the
brush covered slopes west of Interstate 280. The aforementioned conditions combined
with the geological characteristics of the hills within the City create hazardous conditions
for which departure from California Building Standards Code is required. Natural gas
combustion and gas appliances emit a wide range of air pollutants, such as carbon
monoxide (CO), nitrogen oxides (NOx, including nitrogen dioxide (NO2)), particulate
matter (PM), and formaldehyde, which according to a UCLA Study, have been linked to
various acute and chronic health effects, and additionally exceed levels set by national
and California-based ambient air quality standards. The burning of fossil fuels used in the
generation of electric power and heating of buildings contributes to climate change,
which could result in rises in sea level, including in San Francisco Bay, that could put at
risk Palo Alto homes and businesses, public facilities, and Highway 101 (Bayshore
Freeway), particularly the mapped Flood Hazard areas of the City. Energy efficiency is a
key component in reducing GHG emissions, and construction of more energy efficient
buildings can help Palo Alto reduce its share of the GHG emissions that contribute to
climate change. All-electric new buildings benefit the health, safety, and welfare, of Palo
Alto and its residents. Requiring all-electric construction, without gas infrastructure will
reduce the amount of greenhouse gas produced in Palo Alto and will contribute to
reducing the impact of climate change and the associated risks. Due to decrease in annual
rain fall, Palo Alto experiences the effect of drought and water saving more than some
other communities in California. Embodied carbon of concrete is a significant contributor
to greenhouse gas emissions and climate change, and this amendment includes a
requirement to use low-carbon concrete. Providing additional capacity for electric vehicle
use reduces use of gasoline which is a major contributor to climate change.
E Green building enhances the public health and welfare by promoting the environmental
and economic health of the City through the design, construction, maintenance,
operation and deconstruction of buildings and sites by incorporating green practices into
all development. The green provisions in this Chapter are designed to achieve the
following goals:
(a) Increase energy efficiency in buildings;
(b) Reduce the use of natural gas in buildings which improves indoor environmental
quality and health;
(c) Reduce the use of natural gas which will reduce the natural gas infrastructure and
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fire risk over time;
(d) Reduce the embodied carbon of concrete which reduces greenhouse gas
emissions;
(e) Increase water and resource conservation;
(f) Reduce waste generated by construction and demolition projects;
(g) Provide durable buildings that are efficient and economical to own and operate;
(h) Promote the health and productivity of residents, workers, and visitors to the city;
(i) Recognize and conserve the energy embodied in existing buildings;
(j) Increase capacity for use of electric vehicles which reduces greenhouse gas
emissions and improves air quality;
(k) Encourage alternative transportation; and
(l) Reduce disturbance of natural ecosystems.
G This amendment is justified on the basis of a local geological condition. The City of Palo
Alto is subject to earthquake hazard caused by its proximity to San Andreas fault. This
fault runs from Hollister, through the Santa Cruz Mountains, epicenter of the 1989 Loma
Prieta earthquake, then on up the San Francisco Peninsula, then offshore at Daly City near
Mussel Rock. This is the approximate location of the epicenter of the 1906 San Francisco
earthquake. The other fault is Hayward Fault. This fault is about 74 mi long, situated
mainly along the western base of the hills on the east side of San Francisco Bay. Both of
these faults are considered major Northern California earthquake faults which may
experience rupture at any time. Thus, because the City is within a seismic area which
includes these earthquake faults, the modifications and changes cited herein are designed
to better limit property damage as a result of seismic activity and to establish criteria for
repair of damaged properties following a local emergency. Reduction or eliminating of
natural gas infrastructure over time will reduce maintenance costs and fire risk in difficult
geological conditions.
T The City of Palo Alto topography includes hillsides with narrow and winding access, which
makes timely response by fire suppression vehicles difficult. Palo Alto is contiguous with
the San Francisco Bay, resulting in a natural receptor for storm and waste water run-off.
Also, the City of Palo Alto is located in an area that is potentially susceptible to liquefaction
during a major earthquake. The surface condition consists mostly of stiff to dense sandy
clay, which is highly plastic and expansive in nature. The aforementioned conditions
within the City create hazardous conditions for which departure from California Building
Standards Code is warranted. In addition, the reduction or elimination of natural gas
infrastructure reduces the likelihood of fire or environmental damage should they
become disrupted due to challenging topographic conditions during construction or
repair.
Certificate Of Completion
Envelope Id: D7A3D7A742E54B7B93989ECE93D9649F Status: Completed
Subject: DocuSign: Adoption of 9 Ordinances Related to the 2022 CA Building Codes
Source Envelope:
Document Pages: 173 Signatures: 55 Envelope Originator:
Certificate Pages: 3 Initials: 0 Vinhloc Nguyen
AutoNav: Enabled
EnvelopeId Stamping: Enabled
Time Zone: (UTC-08:00) Pacific Time (US & Canada)
250 Hamilton Ave
Palo Alto , CA 94301
Vinhloc.Nguyen@CityofPaloAlto.org
IP Address: 199.33.32.254
Record Tracking
Status: Original
11/21/2022 11:02:42 AM
Holder: Vinhloc Nguyen
Vinhloc.Nguyen@CityofPaloAlto.org
Location: DocuSign
Security Appliance Status: Connected Pool: StateLocal
Storage Appliance Status: Connected Pool: City of Palo Alto Location: DocuSign
Signer Events Signature Timestamp
Albert Yang
Albert.Yang@CityofPaloAlto.org
Assistant City Attorney
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 97.126.59.62
Sent: 11/21/2022 11:11:03 AM
Viewed: 11/21/2022 2:49:57 PM
Signed: 11/21/2022 2:51:09 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Geoffrey Blackshire
Geoffrey.Blackshire@CityofPaloAlto.org
Fire Chief
Fire Services
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 11/21/2022 2:51:19 PM
Resent: 11/29/2022 3:43:47 PM
Viewed: 11/29/2022 3:54:58 PM
Signed: 11/29/2022 3:56:24 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Brad Eggleston
Brad.Eggleston@CityofPaloAlto.org
Director of Public Works
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 11/29/2022 3:56:35 PM
Viewed: 11/29/2022 5:45:39 PM
Signed: 11/29/2022 5:46:20 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Kiely Nose
Kiely.Nose@CityofPaloAlto.org
Director, Administrative Services/CFO
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Uploaded Signature Image
Using IP Address: 73.162.77.140
Sent: 11/29/2022 5:46:29 PM
Viewed: 12/1/2022 7:25:34 AM
Signed: 12/1/2022 7:26:13 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Signer Events Signature Timestamp
Jonathan Lait
Jonathan.Lait@CityofPaloAlto.org
Interim Director Planning and Community
Environment
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Uploaded Signature Image
Using IP Address: 99.88.42.180
Sent: 12/1/2022 7:26:27 AM
Viewed: 12/1/2022 11:12:56 AM
Signed: 12/1/2022 11:16:47 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Ed Shikada
Ed.Shikada@CityofPaloAlto.org
Ed Shikada, City Manager
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 12/1/2022 11:16:58 AM
Viewed: 12/1/2022 1:50:09 PM
Signed: 12/1/2022 1:50:45 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Patrick Burt
pat@patburt.org
Mr
Security Level: Email, Account Authentication
(None)Signature Adoption: Pre-selected Style
Using IP Address: 98.37.159.0
Sent: 12/1/2022 1:50:55 PM
Resent: 12/2/2022 10:23:28 AM
Viewed: 12/2/2022 11:49:03 AM
Signed: 12/2/2022 11:49:57 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Lesley Milton
Lesley.Milton@CityofPaloAlto.org
City Clerk
City Clerk
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 12/2/2022 11:50:10 AM
Viewed: 12/2/2022 11:55:06 AM
Signed: 12/2/2022 11:55:38 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
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
Witness Events Signature Timestamp
Notary Events Signature Timestamp
Envelope Summary Events Status Timestamps
Envelope Sent Hashed/Encrypted 11/21/2022 11:11:03 AM
Certified Delivered Security Checked 12/2/2022 11:55:06 AM
Envelope Summary Events Status Timestamps
Signing Complete Security Checked 12/2/2022 11:55:38 AM
Completed Security Checked 12/2/2022 11:55:38 AM
Payment Events Status Timestamps