§ OH Ohio
County permits
Montgomery County
Montgomery County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Montgomery County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Montgomery County Building Regulations
- Website
- Accela Citizen Access ↗
- Online portal
- Accela Citizen Access ↗
- Phone
- 937-225-4622
- build@mcohio.org
- Address
- 451 W. Third St., 10th Floor, Dayton, OH 45422-1070
§ 02 Jurisdictions
Cities in Montgomery County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Montgomery 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.