CaliforniaBuildingStandards
December 16, 2025
Planning and Economic Development
Jimmy Bliss
Chief Building Official
Introductionof Ordinances
2025 CaliforniaCodeof RegulationsTitle24
California Code of Regulations,
Title 24 Parts 1-12
• “California Building Standards” are the statewide standards for all public and private building construction in California.
• Includes Building, Fire, Plumbing, Mechanical, Electrical, Energy,Disabled Access, Green Building and other standards
December 16, 2025
2 Background
California’s building standards are published in their entirety every three (3) years. The California Building Codes are included in this series of standards.
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3 Background
• The 2025 California Building Standards (California Code of Regulations, Title 24) was published July 1, 2025.
• Effective date of the 2025 Code will be January 1, 2026 upon successful adoption.
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4 Background
California Code of Regulations, Title 24 Parts
1-12
• Updated and adopted every three years for statewide application by the California Building Standards Commission, with mandatory enforcement by all jurisdictions throughout the state.
• Local jurisdictions may adopt additional amendments based upon local or regional topographical, climatic, or geologic conditions germane to each local entity.
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5 Background
California Code of Regulations,
Title 24 Parts 1-12
• Recent state legislation has pre-empted local jurisdictions from making new local amendments pertaining to residential construction until June 1, 2031 (with a few exceptions). (Health and Safety Code Section 17958.5) • This update is meant to carry forward previously adopted amendments while keeping alignment with updated state code numbering.
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6 Background
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7 Other Related Code Updates
The all-electric ordinance update will be addressed under separate ordinance.
The Fire Code adoption was addressed by the Fire
Department under separate ordinance.
Recommendation
The Planning and Economic Development Department recommends that the Council:
1) introduce an ordinance adopting by reference, with local amendments, the 2025 • California Administrative Code
• California Building Code
• California Residential Code
• California Electrical Code
• California Mechanical Code
• California Plumbing Code
• California Energy Code
• California Wildland-Urban Interface Code
• California Historical Building Code
• California Existing Building Code
• California Referenced Standards Code
• California Green Building Standards Code
2) adopt a resolution setting a public hearing on January 13, 2026, for adoption of the ordinances.
December 16, 2025
8 Questions?