Effective Jan. 1, 2026, the 2025 state building codes have replaced the 2022 codes.

The California Building Standards Commission updates the state building codes (California Code of Regulations, CCR, Title 24) every three years.

Plans submitted after Jan 1, 2026 will be reviewed under the 2025 codes (including Building, Electrical, Plumbing, Mechanical, Residential, Fire, CALGreen, and Energy).

2025 California Building Codes

The 2025 codes were published on July 1, 2025 and became applicable to all building permit applications made on or after January 1, 2026.

The updated 2025 codes adopted by the City of San José are:

• 2025 California Building Code - CCR Title 24 Part 2
• 2025 California Residential Code - CCR Title 24 Part 2.5
• 2025 California Electrical Code - CCR Title 24 Part 3
• 2025 California Mechanical Code - CCR Title 24 Part 4
• 2025 California Plumbing Code - CCR Title 24 Part 5
• 2025 California Energy Code – CCR Title 24 Part 6
• 2025 California Wildland-Urban Interface Code – CCR Title 24 Part 7
• 2025 California Historical Building Code - CCR Title 24 Part 8
• 2025 California Fire Code – CCR Title 24 Part 9
• 2025 California Existing Building Code - CCR Title 24 Part 10
• 2025 California Green Building Standards Code – CCR Title 24 Part 11

View the 2022 and 2025 building codes at the Building Standards Commission web page.

• History of Building Code Adoption in the City of San José

Adopted Ordinances

• History of Building Code Adoption in the City of San José
• 2019 California Building Code 11A & 11B