§ CA California
County permits
Alameda County
Alameda County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Alameda County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Alameda County Public Works Agency, Building Inspection Department
- Online portal
- Alameda Public Portal / Virtual Permit Center ↗
- Phone
- (510) 670-5440
- permitbid@acpwa.org
- Address
- 399 Elmhurst Street, Room 141, Hayward, CA 94544
§ 02 Jurisdictions
Cities in Alameda County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Alameda County, California. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.