State directory · CA · West
California building departments
This California directory covers 58 Census county equivalents and local building-department guides. California projects are shaped by the California Building Standards Code, including Title 24, plus local amendments and the city or county permit office.
How permitting works in California
Statewide code baseline with local enforcement. A county name is a geographic index, not a promise that the county government issues every building permit. Many projects are handled by a city, town, township, borough, parish, regional office, or independent city.
Source-backed state research
California Department of Housing and Community Development
California publishes building standards in Title 24 of the California Code of Regulations. The 2025 California Building Standards Code became effective January 1, 2026; local agencies may still have local implementation and amendment information.
Read the official state source ↗Researched local guides
Available department pages
Fresno · Fresno County
Fresno Building and Safety Services
Permits, inspections, zoning, and official contact information.
Los Angeles · Los Angeles County
Los Angeles Department of Building and Safety
Permits, inspections, zoning, and official contact information.
Oakland · Alameda County
Oakland Planning and Building Department
Permits, inspections, zoning, and official contact information.
Orange County · Orange County
Orange County Development Services Building and Safety
Permits, inspections, zoning, and official contact information.
Sacramento · Sacramento County
Sacramento Community Development Department Building Division
Permits, inspections, zoning, and official contact information.
San Diego · San Diego County
San Diego Development Services Department
Permits, inspections, zoning, and official contact information.
San Francisco · San Francisco County
San Francisco Department of Building Inspection
Permits, inspections, zoning, and official contact information.
San Jose · Santa Clara County
San Jose Development Services Permit Center
Permits, inspections, zoning, and official contact information.
Geographic coverage