County permits

Carroll County

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

§ 01 Unincorporated

Unincorporated Carroll County.

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

Permit authority: Carroll County Zoning / Building Permit administration
Website: Permit authority website ↗
Phone: 815-244-0223
Address: 301 N Main St, Mt Carroll, IL 61053

Full unincorporated Carroll County permit guide →

§ 02 Jurisdictions

Cities in Carroll County

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

§ 03 County navigation

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