*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
Ordinance No. XXXX
Ordinance of the Council of the City of Palo Alto Amending Chapter 16.14 (California Green Building Standards, California Code of Regulations, Title 24, Part 11) of the Palo Alto Municipal Code to Adopt the 2022 Green Building Standards Code, Along With Local Amendments Thereto, Related to Electrical Vehicle Charging Infrastructure Requirements and Building Electrification Requirements
The Council of the City of Palo Alto does ORDAIN as follows:
SECTION 1. Findings and Declarations.
(a) The City of Palo Alto adopted a Sustainability and Climate Action Plan, or S/CAP, to meet the City's stated goal of "80 x 30": reducing greenhouse gas emissions 80% below 1990 levels by 2030.
(b) The S/CAP outlines goals and key actions in eight areas, one of which is energy and more specifically, energy efficiency and electrification. The goals for the energy area of the S/CAP are to reduce GHG emissions from the direct use of natural gas in Palo Alto’s building sector by at least 60% below 1990 levels (116,400 MT CO2e reduction) and to modernize the electric grid to support increased electric demand to accommodate state‐ of‐the‐art technology.
(c) One key action the City is taking to accomplish those goals is use codes and ordinances ‐ such as the energy reach code, green building ordinance, zoning code, or other mandates ‐ to facilitate electrification in both existing buildings and new construction projects where feasible.
(d) The purpose of this ordinance is to formally adopt California Code of Regulations, Title 24, Part 11, 2022 California Green Building Standards Code, with local amendments in furtherance of the City of Palo Alto’s S/CAP goals.
(e) California Health and Safety Code sections 17958.5 and 17958.7 requires that the City, in order to make changes or modifications in the requirements contained in the California Green Building Standards on the basis of local conditions, make express finding that such modifications or changes are reasonably necessary because of local climatic, geological or topographical conditions.
(f) The required findings are attached to this ordinance as Exhibit A.
SECTION 2. Chapter 16.14 (California Green Building Standards, California Code of Regulations, Title 24, Part 11) of the Palo Alto Municipal Code is hereby amended by repealing in its entirety existing 16.14 and adopting a new Chapter 16.14 to read as follows:
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
CHAPTER 16.14
CALIFORNIA GREEN BUILDING STANDARDS CODE,
CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 11
Sections
Part 1 – General
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.
Part 2 – Local Modifications to CHAPTER 1 – ADMINISTRATION
16.14.040 Administration & Enforcement of 2022 California Green Building Standards Code.
16.14.050 Adoption of Chapter 1 Administration.
16.14.060 Section 101.4 Appendices.
Part 3 – Local Modifications to CHAPTER 2 – DEFINITIONS
16.14.070 Section 202 Definitions.
Part 4 – Local Modifications to CHAPTER 3 – GREEN BUILDING
16.14.080 Section 301 – Voluntary Tiers Added.
Part 5 – Local Modifications to CHAPTER 4 – RESIDENTIAL MANDATORY
MEASURES
16.14.090 Section 4.106.5 Full Electrification
16.14.100 Section 4.306 Swimming Pool and Spa Covers.
16.14.110 Reserved
Part 6 – Local Modifications to CHAPTER 7 – INSTALLER AND SPECIAL INSPECTOR QUALIFICATIONS
16.14.120 Section 702.2 Special Inspection.
Part 7– Local Modifications to APPENDIX A4 – RESIDENTIAL VOLUNTARY
MEASURES
16.14.130 Residential Projects. Appendix A4 Preface: Green Building Measures for Project Type and Scope.
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 Section A4.304.3 Irrigation Metering Device.
16.14.210 Section A4.305 Water Reuse Systems.
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.
Part 8 – Local Modifications to CHAPTER 5 – NONRESIDENTIAL MANDATORY
MEASURES
16.14.280 Nonresidential 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 Full Electrification.
16.14.310 Reserved
16.14.320 Reserved
16.14.330 Section 5.304.2 Invasive Species Prohibited.
16.14.340 Section 5.306 Nonresidential 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.
Part 9 – Local Modifications to APPENDIX A5 – NONRESIDENTIAL VOLUNTARY *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
MEASURES
16.14.400 Section A5.106.5.3 Electric Vehicle (EV) Charging for New Construction.
16.14.410 Section A5.203.1 Performance Approach for Newly Constructed Buildings.
16.14.420 Section A5.405.5 Cement and Concrete.
16.14.430 Section A5.408 Construction Waste Reduction, Disposal and Recycling.
Part 1 – General
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. 5570 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 “California Green Building Standards Code” or “CALGreen” 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 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 Chief Building Official of the City of Palo Alto.
16.14.020 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.
16.14.030 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.
Part 2 – Local Modifications to CHAPTER 1 – ADMINISTRATION
16.14.040 Administration & Enforcement of 2022 California Green Building Standards Code. *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
16.14.050 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.
16.14.060 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 ‐ Nonresidential Voluntary Measures (Tier 1 and Tier 2)
Part 3 – Local Modifications to CHAPTER 2 – DEFINITIONS
16.14.070 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.
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 nonresidential 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 nonresidential projects.
Projects subject to Tier 2 must fulfill all mandatory measures, all Tier 2 prerequisite *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 nonresidential 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 nonresidential projects.
CALGREEN INSPECTOR is a person 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 is 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 Building Energy Efficiency Standards for residential and nonresidential 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 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 (or “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.
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
Part 4 – Local Modifications to 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 nonresidential 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 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.
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
301.2 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.
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.
301.3 Nonresidential additions and alterations. [BSC‐CG] The provisions of individual sections of Chapter 5 apply to building nonresidential 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. Nonresidential 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. Nonresidential additions of 1000 square feet or greater must comply *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 Nonresidential new construction – Tier 2 adopted. All new nonresidential 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 nonresidential 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.
Part 5 – Local Modifications to CHAPTER 4 – RESIDENTIAL MANDATORY MEASURES
Division 4.1 – PLANNING AND
DESIGN
16.14.090 Section 4.106.5 Full Electrification
Section 4.106 of Chapter 4 of the California Green Building Standards Code is amended to add new subsection, 4.106.5 as follows:
4.106.5 Full electrification. Full electrification is recommended for new buildings, substantial remodels, and new outdoor appliances/equipment such as fireplaces, firepits, heaters for swimming
pool/spa, and similar equipment. Full electrification is required for outdoor grills, stoves, and barbecues. This subsection does not prohibit freestanding and/or portable grills, stoves, or barbecues whose sole source of energy is self‐contained fuel canisters.
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.
Part 6 – Local Modifications to CHAPTER 7 – INSTALLER AND SPECIAL INSPECTOR
QUALIFICATIONS
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 owner or responsible entity acting as the owner’s agent shall employ one or more 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:
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.
Part 7– Local Modifications to 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 16.14.120 of this code, who have been *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
trained in areas related to environmentally friendly development, shall teach green concepts to other members of the builder’s staff and ensure training and written 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 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.
Sections A4.106.8 – A4.106.8.2.1 of the California Green Building Standards Code are deleted in its entirety, adopted as mandatory measures and is amended to read:
A4.106.8 Electric vehicle (EV) charging for residential structures. Newly constructed single‐family and multi‐family residential structures, including residential structures constructed as part of a mixed‐use development, shall comply with the following *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
A4.106.8.1 New single‐family, duplex and townhouse dwellings. The following standards apply to newly constructed detached and attached single‐family, duplex 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 10% (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.
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
(a) In general. The property owner shall provide at least 40% 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 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.
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, Up light and Glare (BUG) ratings as defined in IES TM‐15‐11; and
3. Allowable BUG ratings not exceeding those shown in TABLE 5.106.8 [N]; or 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 *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 (California Energy Code).
Division A4.3 – WATER EFFICIENCY AND CONSERVATION
16.14.200 Section A4.304.3 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.
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.
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
Section A4.305.4 is added as Tier 1 and Tier 2 prerequisite and amended to read:
A4.305.4 Additions and alterations. All multi‐family 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 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 V2.3 Product Category Rule for Concrete by NSF dated November 2023.
https://d2evkimvhatqav.cloudfront.net/documents/PCR‐Product‐Category‐Rules/PCR‐Concrete‐2023‐deviation.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:
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 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
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
where
Cem proj = ΣCem n v n and Cem allowed = ΣCem 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 = ΣEC n v n and EC allowed = ΣEC 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 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 *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 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. *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
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.
Part 8 – Local Modifications to CHAPTER 5 – NONRESIDENTIAL MANDATORY MEASURES
Division 5.1 – PLANNING AND DESIGN
16.14.280 Nonresidential 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 *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
construction of nonresidential 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 Stormwater 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 City of Palo Alto stormwater runoff management and pollution prevention measures as applicable, and as may be amended from time to time.
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 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. *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
5. Luminaires with less than 6,200 initial luminaire lumens.
16.14.300 Section 5.106.13 Full Electrification.
Section 5.106 of Chapter 4 of the California Green Building Standards Code is amended to add new subsection, 5.106.13 as follows:
5.106.13 Full electrification. Full electrification is recommended for new buildings, substantial remodels, and new outdoor appliances/equipment such as fireplaces, firepits, heaters for swimming pool/spa, and similar equipment. Full electrification is required for outdoor grills, stoves, and barbecues. This subsection does not prohibit freestanding and/or portable grills, stoves, and barbecues whose source of energy is self‐contained fuel canisters.
16.14.310 Reserved
16.14.320 Reserved
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 nonresidential new construction, additions, and alterations shall not install invasive species in a landscape area of any size.
16.14.340 Section 5.306 Nonresidential 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 Nonresidential enhanced water budget. Nonresidential buildings anticipated to use more than 1,000 gallons of water a day shall complete an Enhanced Water Budget 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 high rise residential or nonresidential buildings.
Cooling tower water use must meet the conditions as follows and as outlined in Palo Alto *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 nonresidential 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 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. *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
Part 9 – Local Modifications to APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES
Division A5.1
– PLANNING AND DESIGN
16.14.400 Section A5.106.5.3 Electric Vehicle (EV) Charging for New Construction.
Section A5.106.5.3 – A5.106.5.3.4 of the California Green Building Standards Code are deleted in its entirety, adopted as mandatory measures and is amended to read:
A5.106.5.3 Electric vehicle (EV) charging for nonresidential 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 Nonresidential structures other than hotels. The following standards apply to newly constructed nonresidential structures other than hotels. *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
Division A5.4 – ENERGY EFFICIENCY
16.14.410 Section A5.203.1 Performance Approach for Newly Constructed Buildings.
Section A5.203.1 of Appendix A5 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 (California Energy Code).
Division A5.4 – MATERIAL CONSERVATION AND RESOUCE EFFICIENCY
16.14.420 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:
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.
16.14.430 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 nonresidential construction, including new construction, additions, and alterations, as long as the construction has a valuation of $25,000 or more. Nonresidential projects with a lower valuation shall remain subject to *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.
A5.408.3.1.1 ‐ Deleted
A5.408.3.1.2 Documentation. Documentation shall be provided to the enforcing agency which demonstrates compliance with all construction and demolition waste reduction requirements.
SECTION 3. The Council adopts the findings for local amendments to the California Green Building Standards Code, 2022 Edition, attached hereto as Exhibit “A” and incorporated herein by reference.
SECTION 4. 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 5. The Council finds that this project is exempt from the provisions of the California Environmental Quality Act (“CEQA”), pursuant to Section 15061 of the CEQA Guidelines, because it can be seen with certainty that there is no possibility that the amendments herein adopted will have a significant effect on the environment and Section 15308, because the amendments herein adopted is an action taken by the City to assure the maintenance, restoration, enhancement, or protection of the environment.
///
//
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
SECTION 6. This Ordinance shall be effective on the thirty‐first day after the date of its adoption.
INTRODUCED:
PASSED:
AYES:
NOES:
ABSENT:
ABSTENTIONS:
ATTEST:
____________________________ ____________________________ City Clerk Mayor
APPROVED AS TO FORM: APPROVED:
____________________________ ____________________________ Chief Assistant City Attorney City Manager
____________________________
Director of Planning and
Development Services
____________________________
Director of Administrative Services
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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)
101.4 Appendices A
202 Definitions 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 Nonresidential additions and alterations C, E 301.3.3 No‐residential new construction – Tier 2 C, E 301.6 Special inspector requirements C, E
301.7 Low‐carbon concrete requirements for Tier
1 and Tier 2 projects
C, E
4.306 Swimming pool and spa covers C, E
4.509 Heat pump water heater
702.2 Green building special inspection
C, E
A4.104.1 Supervision and education by a special
inspector
C, E
A4.105.1 Chapter 5.24 of Title 5 of the Municipal
Code
C, E
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
A4.105.2 Reuse of materials C, E
A4.106.8 Electric vehicle (EV) charging for residential structures
C, E
A4.106.8.1 New single‐family, duplex and townhouse
dwellings
C, E
A4.106.8.2 New multi‐family dwellings. C, E
A4.106.8.3 New hotels and motels 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
A4.305.1 Graywater C, E
A4.305.2 Recycled water piping C, E
A4.305.3 Recycled water for landscape irrigation C, E A4.305.4 Additions and alterations C, E
A4.403.1 Frost Protection Foundation Systems
C
A4.403.2 Reduction in cement use C, E
A4.403.2.1 Purpose C, E
A4.403.2.2 Definitions C, E
A4.403.2.3 Compliance C, E
Table
A4.403.2.3
Cement and Embodied Carbon Limit
Pathways
C, E
A4.403.2.3.1 Allowable increases C, E
A4.403.2.3.2 Cement limit method ‐ mix C, E
A4.403.2.3.3 Cement limit method ‐ project C, E A4.403.2.3.4 Embodied carbon method ‐ mix C, E
A4.403.2.3.5 Embodied carbon method ‐ project C, E A4.403.2.3.6 Enforcement A
A4.403.2.3.7 Exemptions A
A4.408.1 Enhanced construction waste reduction
C, E
A4.408.1.1 Documentation A
A4.504.1 Compliance with Formaldehyde Limits C, E A4.504.3 Thermal Insulation C, E
5.106.1.1 Local Storm Water Pollution Prevention C, E
5.106.1.1 Local ordinance C, E
5.106.8 Light pollution reduction C, E
5.304.2 Invasive species prohibited C
5.306 Nonresidential enhanced water
budget
C, E
5.307.1 Cooling tower water use in high‐rise
residential or nonresidential buildings
C, E
*NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 E
A5.106.5.3 Electric vehicle (EV) charging for
nonresidential structures
C, E
A5.106.5.3.5 Nonresidential structures other than hotels
C, E
A5.203.1 Performance Approach for Newly
Constructed Buildings
C, E
A5.405.5 Cement and concrete C, E
A5.408.3.1 Waste enhanced construction waste
reduction
C, E
A5.408.3.1.1 Enhanced construction waste reduction –
Tier 2
A
A5.408.3.1.2 Documentation A
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 *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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 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 *NOT YET APPROVED*
ATTACHMENT A
0280100_KB2_20240523_CA
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.