County Building Permits

Mason County Building Permit Guide

Building permit information for unincorporated Mason County and the City of Shelton. Find your jurisdiction's permit authority, application process, fees, and requirements.

Washington Updated March 2026

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

Unincorporated Mason County

Permit authority
Community Development Department, Building Division
Apply for permit
Apply online
Governing body
Mason County Board of Commissioners

Jurisdictions in Mason County

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

City of Shelton Permit guide → Unincorporated Mason County 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 Washington Resources

License Requirements Verify your contractor's L&I registration → Contract Template Free homeowner-contractor agreement →

Need help with your project?

Navigating permits in Mason 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.