County Building Permits

Marin County, CA - 2026 Building Permit Guide

Building permit information for unincorporated Marin County and all incorporated cities. Find your jurisdiction's permit authority, application process, fees, and requirements.

California Updated March 2026

Important: Marin County issues building permits only for properties in unincorporated areas of the county. If your property is inside an incorporated city, select your city below — that city's building department handles your permits, not the county.

Unincorporated Marin County

Permit authority
Marin County Community Development Agency, Building and Safety Division
Online portal
Marin Building Permits
Phone
415-473-6550
Address
3501 Civic Center Drive, Suite 308, San Rafael, CA 94903

Jurisdictions in Marin County

Select your jurisdiction for local permit authority, portal links, application steps, fees, and inspection requirements.

Unincorporated Marin County Permit guide → Belvedere Permit guide → Corte Madera Permit guide → Fairfax Permit guide → Larkspur Permit guide → Mill Valley Permit guide → Novato Permit guide → Ross Permit guide → San Anselmo Permit guide → San Rafael Permit guide → Sausalito Permit guide → Tiburon Permit guide →

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the relevant city or county department before applying.

Related California Resources

License Requirements Verify your contractor's California license → Contract Template Free homeowner-contractor agreement →

Need help with your project?

Navigating permits in Marin County can be complicated.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authorities listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.