County Building Permits
Darke County, OH - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Darke County, Ohio. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
All unincorporated areas of Darke County for residential construction, electrical, and heating/cooling work.
- Department
- Darke County Building Regulations
- Address
- 520 S. Broadway, Greenville, OH 45331
- Phone
- 937-547-7379
Online Permit Portal
Platform: iWorQ • Account required: No • Submission: In-person only
Application Process
- Confirm whether the work is under Darke County building regulation and whether zoning or health department approvals also apply.
- For residential work, apply at the Darke County Building Regulations office in Greenville.
- Submit construction drawings for building permits with foundation plan, floor plan, exterior and interior bearing wall cross sections, roof detail, and exterior elevations.
- For electrical or heating and cooling permits, provide specific work details.
- Submit commercial plans through the Miami County iWorQ permit portal.
- County review occurs, then permit issuance and inspections are handled by county inspectors.
General Requirements
County page states residential construction, electrical, and heating and cooling work in its service area requires permits (including commercial permits); unincorporated residential permits are handled through the county office.
Required Documents
- Drawings for building permits
- Specific work details for electrical and heating/cooling permits
- Building code
- Residential Building Code of Ohio and National Electric Code of Ohio are referenced by county-related materials; applied under Ohio code framework.
- Contractor requirements
- Permits are required for contractors, property owners, or any persons doing covered work.
Work That Does NOT Require a Permit
Contact the Darke County Building Regulations to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- Inspection hours
- Monday to Friday, 8:00 a.m. to 3:30 p.m.; lunch closure 11:30 a.m. to 12:00 p.m.
Typical inspection sequence: County review and permit issuance occur first; inspections are then performed by Darke County inspectors.
Additional Resources
- Building code: Residential Building Code of Ohio and National Electric Code of Ohio are referenced by county-related materials; applied under Ohio code framework.
- Darke County Contact
- Darke County Home
- License lookup guide: Ohio Contractor License Requirements
- Contract template: Ohio Homeowner-Contractor Agreement
- Ohio hub: Ohio Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Darke County Building Regulations before applying.
Frequently Asked Questions
Darke County Building Permit FAQ
- Do I need a building permit in unincorporated Darke County, OH?
- County page states residential construction, electrical, and heating and cooling work in its service area requires permits (including commercial permits); unincorporated residential permits are handled through the county office.
- How do I apply for a building permit in unincorporated Darke County, OH?
- 1. Confirm whether the work is under Darke County building regulation and whether zoning or health department approvals also apply. 2. For residential work, apply at the Darke County Building Regulations office in Greenville. 3. Submit construction drawings for building permits with foundation plan, floor plan, exterior and interior bearing wall cross sections, roof detail, and exterior elevations. 4. For electrical or heating and cooling permits, provide specific work details. 5. Submit commercial plans through the Miami County iWorQ permit portal. 6. County review occurs, then permit issuance and inspections are handled by county inspectors.
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