Franklin County

Franklin County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.

§ 01 Unincorporated

Unincorporated Franklin County.

If your property isn't inside an incorporated city, the county permit office handles your application directly.

Permit authority: Franklin County Building Inspector
Website: Permit authority website ↗
Phone: (208) 220-2120
Address: Franklin County, Preston, ID

Full unincorporated Franklin County permit guide →

§ 02 Jurisdictions

Cities in Franklin County

Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.

§ 03 County navigation

Information last verified for Franklin County, Idaho. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.