California Code Updates
2025 Building Codes will become effective January 1, 2026.
On January 1, 2026, the City of Grass Valley will require all new plan review and permit applications to comply with the 2025 California Building Standards Codes, which are based on the International Building Codes. This includes Building, Electrical, Mechanical, Plumbing, Energy and Fire.
Below are the significant 2025 code changes:
- 2025 CA Building Code, Volume 1
- 2025 CA Building Code, Volume 2
- 2025 CA Residential Code
- 2025 CA Mechanical Code
- 2025 CA Electrical Code
- 2025 CA Plumbing Code
- 2025 CA Energy Code
- 2025 CA Fire Code
- 2025 CA Green Building Standards Code
- 2025 CA Historical Code
- 2025 CA Existing Code
Please visit the California Building Standards Commission Website for updates.
2025 California Energy Code Updates - visit the California Energy Commission website for updates.
2025 CalGreen Code Updates - visit the California Building Standards Commission Website for updates.