County Building Permits
Defiance County, OH - 2026 Building Permit Guide
Building permit information for unincorporated Defiance County and all incorporated cities. Find your jurisdiction's permit authority, application process, fees, and requirements.
Important: Defiance County issues building permits only for properties in unincorporated areas of the county. If your property is inside an incorporated city, select your city below — that city's building department handles your permits, not the county.
Unincorporated Defiance County
- Permit authority
- Defiance County Engineer
- Website
- Permit authority website
- Phone
- (419) 782-4751
- Address
- 510 Court Street, Suite 201, Defiance, OH 43512
Jurisdictions in Defiance County
Select your jurisdiction for local permit authority, portal links, application steps, fees, and inspection requirements.
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 Ohio Resources
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