Title 15 — BUILDINGS AND CONSTRUCTION
Chapter 15.10 — CALIFORNIA GREEN BUILDING STANDARDS CODE
Orinda Municipal Code · 2026-09 edition · updated 2026-09-29 · Orinda
Editor's note— Ord. No. 25-07, § 4(App. A), adopted Jan. 13, 2026, repealed the former Ch. 15.10, §§ 15.10.010—15.10.040, and enacted a new Ch. 15.10 as set out herein. The former Ch. 15.10 pertained to similar subject matter and derived from: Ord. No. 11-01, § 5(exh. A), adopted April 12, 2011; Ord. No.14-01, § 5(App. A), adopted Feb. 4, 2014; Ord. No. 17-01, § 5(App. A), adopted Jan. 24, 2017; Ord. No. 20-03, § 5(App. A), adopted Feb. 18, 2020; and Ord. No. 23-01, § 4(App. A), adopted Jan. 17, 2023.
15.10.010 - Adoption.¶
A. The 2025 California Green Building Standards Code ("CALGreen" or "CGBSC"), Part 11 of the California Building Standards Code in Title 24, is amended by the changes, additions, and deletions set forth in this chapter and other chapters of this title, is adopted by this reference as though fully set forth. Section numbers used below are those of the 2025 California Green Building Standards Code.
B. At least one copy of this building code is now on file in the office of the City Clerk and the City Building Department; the other requirements of Government Code Section 50022.6 have been and shall be complied with. C. As of the effective date of the ordinance codified in this chapter, the provisions of the CALGreen code are controlling and enforceable within the city. D. The purpose of this chapter is to cause a reduction in greenhouse gas emissions from buildings; promote environmentally responsible, cost-effective, healthier places to live and work; reduce energy and water consumption; and respond to the directives by the Governor. (Ord. No. 25-07, § 4(App. A), 1-13-26)
15.10.020 - Green Building.¶
Section 301.1.1 (Additions and alterations) of CGBSC Chapter 3 (Green Building) is amended by adding the following to the end of that section: Section 301.1.1 Additions and alterations. The mandatory provisions of Section 4.408 shall apply to the following types of construction or demolition projects for existing residential buildings: 1. Projects where the addition or alteration is 1,000 square feet or larger, 2. Projects where the project valuation is $50,000 or greater, 3. Projects where the addition or alteration increases the building's conditioned area, volume, or size, or 4. Demolition projects when a demolition permit is required. Exception: Demolition projects undertaken because the enforcing agency has determined that the demolition is necessary to abate a public nuisance or otherwise protect public health and safety. For the purposes of determining whether a project meets the foregoing thresholds, all phases of a project and all related projects taking place on a single or adjoining parcel(s) may be deemed a single project at the discretion of the enforcing agency, regardless of the number of different permits issued for the project(s). A.
Section 301.3.2 (Waste diversion) of CGBSC Chapter 3 (Green Building) is amended to read: Section 301.3.2 Waste diversion. The requirements of Section 5.408 shall apply to additions, alterations, and demolition whenever a permit is required for work. Exception: Demolition projects undertaken because the enforcing agency has determined that the demolition is necessary to abate a public nuisance or otherwise protect public health and safety. B. Section 4.106.4.2.2 (Multifamily Dwellings) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended by adding subsection (2)(d) to the end of that section to read: d. EV Chargers. Notwithstanding anything in this section to the contrary, at least ten (10) percent of the total number of parking spaces shall be equipped with fully-operational Level 2 EVSE. (Ord. No. 25-07, § 4(App. A), 1-13-26)
15.10.030 - Residential Mandatory Measures.¶
A. Section 4.408.1 (Construction waste management) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read: Section 4.408.1 Construction waste management. Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with Section 4.408.2. Exceptions: 1. Excavated soil and land-clearing debris. 2. The City may identify alternate waste reduction requirements if the City determines that an owner or contractor has adequately demonstrated that diversion facilities necessary for the owner to comply with this section do not exist or are not located within a reasonable distance from the jobsite. B. Section 4.408.2 (Construction waste management plan) is amended to read: Section 4.408.2 Construction waste management plan. Submit a construction waste management plan (WMP) for the project, signed by the owner, on a form approved by the City in conformance with Items 1 through 5 prior to issuance of building permit. The construction waste management plan shall be updated as necessary, subject to approval by the City. The approved plan, and any updates, shall be available during construction for examination by the City. The plan must do all of the following:
Identify the construction and demolition waste materials to be diverted from disposal by recycling, reuse on the project or salvage for future use or sale. 2. Specify if construction and demolition waste materials will be sorted on-site (source-separated) or bulk mixed (single stream). 3. Identify diversion facilities where the construction and demolition waste material will be taken and identify the waste management companies, if any, that will be utilized to haul the construction and demolition waste material. A waste management company utilized to haul construction and demolition waste material must have all applicable County approvals. 4. Identify construction methods employed to reduce the amount of construction and demolition waste generated. 5. Specify that the amount of construction and demolition debris shall be calculated consistent with the City's requirements for the weighing of debris. The owner shall ensure that all construction and demolition debris diverted or disposed are measured and recorded by weight or volume using the most accurate method of measurement available. To the extent practicable, all construction and demolition debris shall be weighed using scales. Scales shall be in compliance with all regulatory requirements for accuracy and maintenance. For construction and demolition debris for which weighing is not possible due to lack of scales, or not practical due to materials being reused on-site or elsewhere, or not practical due to other considerations, and upon approval by the City, a volumetric measurement shall be used. The owner shall convert volumetric measurements to weight using the standardized conversion factors approved by the City for this purpose. C. Section 4.408.3 (Waste management company) of CGBSC Chapter 4 (Residential Mandatory Measures) is deleted. D. Section 4.408.5 (Documentation) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read: Section 4.408.5 (Documentation).A construction waste management final report containing information and supporting documentation shall be provided to the City which demonstrates compliance with Section 4.408.1, Section 4.408.2, Items 1 through 5, and, when applicable, Section 4.408.4 or Section 4.408.4.1, shall be provided to the City before the final inspection. All final reports must be entered into an electronic
reporting system approved by the City. The required documentation shall include, but is not necessarily limited to the following: 1. Documentation of the quantity, by weight, of each material type diverted or disposed, consistent with the requirements of Section 4.408.2, Item 5, and receipts or written certification from all receiving facilities utilized to divert or dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report; or 2. For projects that satisfy the waste stream reduction alternative specified in Section 4.408.4 or Section 4.408.4.1, documentation of the quantity by weight of each material type disposed and the total combined weight of construction and demolition waste disposed in landfills as a result of the project, the corresponding pounds disposed per square foot of the building area, and receipts or written certification from all receiving facilities utilized to dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report. Notes: 3. Sample forms found in "A Guide to the California Green Building Standards Code (Residential)" located at http://hcd.ca.gov/building-standards/calgreen/cal- green-form.shtml may be used to assist in documenting compliance with this section. 4. Mixed construction and demolition debris (C&D) processors can be located at the California Department of Resources Recycling and Recovery (CalRecycle). E. Section 4.408.6 is added to read: To be counted toward the diversion requirement, construction and demolition waste material must be taken to a construction and demolition waste materials recovery facility that appears on the CCCSWA list of approved facilities. (Ord. No. 25-07, § 4(App. A), 1-13-26)
15.10.040 - Nonresidential Mandatory Measures.¶
A. Section 5.106.5.3.1 (EV Capable Spaces and EVCS) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read: TABLE 5.106.5.3.1 - EV CAPABLE SPACES AND EVCS
TOTAL NUMBER OF ACTUAL PARKING SPACES NUMBER OF REQUIRED EV- CAPABLE SPACES OTHER THAN OFFICE AND RETAIL NUMBER OF REQUIRED EVCS2, 3 OFFICE AND RETAIL NUMBER OF REQUIRED EVCS2, 3 1—9 0 0 0 10—25 4 3 3 26—50 8 5 6 51—75 13 8 8 76—100 17 10 13 101—150 25 15 19 151—200 35 20 26 201 and over 20 percent of EV capable spaces 1 50 percent of EV capable spaces 1 75 percent of EV capable spaces 1
1 Calculation for spaces shall be rounded up to the nearest whole number. 2 Each EVCS shall reduce the number of required EV capable spaces by the same number. 3 At least one Level 2 EVSE shall be provided. B. Section 5.408.1 (Construction waste management) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read: Section 5.408.1 Construction waste management. Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with Section 5.408.1.1. Exceptions: 1. Excavated soil and land-clearing debris. 2. The City may identify alternate waste reduction requirements if the City determines that an owner or contractor has adequately demonstrated that diversion facilities necessary for the owner to comply with this section do not exist. C. Section 5.408.1.1 (Construction waste management) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:
Section 5.408.1.1 Construction waste management plan. Submit a construction waste management plan for the project, signed by the owner, on a form approved by the City in conformance with items 1 through 5 prior to issuance of building permit. The construction waste management plan shall be updated as necessary, subject to approval by the City. The approved plan, and any updates, shall be available during construction for examination by the City. The plan must do all of the following: 1. Identify the construction and demolition waste materials to be diverted from disposal by recycling, reuse on the project, or salvage for future use or sale. 2. Specify if construction and demolition waste materials will be sorted on-site (source-separated) or bulk mixed (single stream). 3. Identify diversion and disposal facilities where the construction and demolition waste material will be taken and identify the waste management companies, if any, that will be utilized to haul the construction and demolition waste material. A waste company utilized to haul construction and demolition waste material must have all applicable County approvals. 4. Identify construction methods employed to reduce the amount of construction and demolition waste generated. 5. Specify that the amount of construction and demolition debris shall be calculated consistent with the City's requirements for the weighing of debris. The owner shall ensure that all construction and demolition debris diverted or disposed are measured and recorded by weight or volume using the most accurate method of measurement available. To the extent practicable, all construction and demolition debris shall be weighed using scales. Scales shall be in compliance with all regulatory requirements for accuracy and maintenance. For construction and demolition debris for which weighing is not possible due to lack of scales or not practical due to material being reused on-site or elsewhere, or not practical due to other considerations, and upon approval by the City, a volumetric measurement shall be used. The owner shall convert volumetric measurements to weight using the standardized conversion factors approved by the City for this purpose. D. Section 5.408.1.2 (Waste management company) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is deleted. E. 5.408.1.4 (Documentation) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:
Section 5.408.1.4 Documentation. A construction waste management final report containing information and supporting documentation that demonstrates compliance with Section 5.408.1, Section 5.408.1.1, Items 1 through 5, and, when applicable, Section 5.408.1.3, shall be provided to the enforcing agency before the final inspection. All final reports must be entered into an electronic reporting system approved by the City. The required documentation shall include, but is not necessarily limited to, the following: 1. Documentation of the quantity by weight of each material type diverted or disposed, consistent with the requirements of Section 5.408.1.1, Item 5, and receipts or written certification from all receiving facilities utilized to divert or dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report; or 2. For projects that satisfy the waste stream reduction alternative specified in Section 5.408.1.3, documentation of the quantity by weight of each new construction material type disposed and the total combined weight of new construction waste disposed as a result of the project, the corresponding pounds of new construction disposal per square foot of the building area, and receipts or written certification from all receiving facilities utilized to dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report. Notes: 3. Sample forms found in "A Guide to the California Green Building Standards Code (Nonresidential)" located at http://www.bsc.ca.gov/Home/CAL-Green.aspx may be used to assist in documenting compliance with this section. 4. Mixed construction and demolition debris (C&D) processors can be located at the California Department of Resources Recycling and Recovery (CalRecycle). G. Section 5.408.4 is added to read: To be counted toward the diversion requirement, construction and demolition waste material must be taken to a construction and demolition waste materials recovery facility that appears on the CCCSWA list of approved facilities. (Ord. No. 25-07, § 4(App. A), 1-13-26)
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Ask AI about this code▸Contents — Orinda Municipal Code
- Title 1 — GENERAL PROVISIONS
- Title 2 — ADMINISTRATION AND PERSONNEL
- Title 3 — REVENUE AND FINANCE
- Title 5 — BUSINESS LICENSES AND REGULATIONS
- Title 6 — ANIMALS
- Title 8 — HEALTH AND SAFETY
- Title 9 — PUBLIC PEACE, MORALS AND WELFARE
- Title 10 — VEHICLES AND TRAFFIC
- Title 12 — STREETS, SIDEWALKS AND PUBLIC PLACES
- Title 13 — PUBLIC SERVICES
▸Title 15 — BUILDINGS AND CONSTRUCTION
Overview- Chapter 15.04 — GENERAL PROVISIONS
- Chapter 15.08 — BUILDING CODE
- Chapter 15.09 — CALIFORNIA RESIDENTIAL CODE
- Chapter 15.10 — CALIFORNIA GREEN BUILDING STANDARDS CODE
- Chapter 15.11 — EXISTING BUILDING CODE
- Chapter 15.12 — ELECTRICAL CODE
- Chapter 15.16 — PLUMBING CODE
- Chapter 15.20 — MECHANICAL CODE
- Chapter 15.21 — ENERGY CODE
- Chapter 15.24 — UNIFORM HOUSING CODE
- Chapter 15.28 — HOUSE MOVING
- Chapter 15.32 — BUILDING PERMIT CONDITIONS
- Article 2 — Building Permit Conditions
- Article 3 — Administration
- Article 4 — Permits, Drainage and Streets—County Provisions
- Chapter 15.36 — GRADING
- Chapter 15.40 — SWIMMING POOLS
- Chapter 15.44 — WIND ENERGY COVERSION SYSTEMS
- Chapter 15.48 — RESIDENTIAL DWELLING WEATHERIZATION DISCLOSURE
- Chapter 15.56 — GAS SHUT-OFF DEVICES
- Chapter 15.58 — RESTRICTIONS ON THE INSTALLATION OF WOOD BURNI…
- Article 1 — General
- Article 2 — Restrictions on the Installation of Wood Burning A…
- Chapter 15.60 — SOLAR ENERGY SYSTEMS
- Title 16 — SUBDIVISIONS
- Title 17 — ZONING
- Title 18 — CLEAN WATER, DRAINAGE AND RELATED RIPARIAN HABITAT …
- Title 19 — CODE COMPLIANCE