Harrison County

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

§ 01 Unincorporated

Unincorporated Harrison County.

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

Permit authority: Department of Building Inspection, Harrison County Commissioners
Website: Permit authority website ↗
Phone: 740-942-4623 (Commissioners); 740-942-3086 (County Engineer); 740-391-5966 (Inspector)
Email: commissioners@harrisoncountyohio.org; engineer@harrisoncountyohio.gov
Address: 100 West Market Street, Cadiz, OH 43907; County Engineer Office: 1 Service Garage Rd, Cadiz, OH 43907

Full unincorporated Harrison County permit guide →

§ 02 Jurisdictions

Cities in Harrison County

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

§ 03 County navigation

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