Digital permit application gateway
Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.
Recommended first click
Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.
Typical review lane
Permits requiring construction drawings are required by state law to be reviewed within 30 days; permits not requiring drawings are typically issued within one week.
Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.
Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.
Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.
Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.
Application documents
Before submission, call 937-645-3018 if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Union County Building Department, Division of Building Regulations is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 937-645-3018.
Permits requiring construction drawings are required by state law to be reviewed within 30 days; permits not requiring drawings are typically issued within one week.
Schedule inspections through the OpenGov portal, with a 7:00 a.m. cutoff for same-business-day inspections, or call the inspection line at 937-645-3019 with the permit number, address, and inspection type. Phone scheduling can take two business days. Approved plans must remain onsite and the address must be posted; after-hours requests require 48 hours' notice.
Commercial: 2024 Ohio Building Code, 2024 Ohio Existing Building Code, 2024 Ohio Mechanical Code, 2017 Ohio Fire Code, 2021 IFGC/IECC, 2023 NFPA 70, 2022 NFPA 72 and NFPA 13. Residential: 2019 Residential Code of Ohio, 2023 NEC, 2018 IECC, and 2024 ICC Swimming Pool and Spa Code, as listed in the county's current-code references dated January 28, 2026. The county FAQ states that decks are exempt only when under 30 inches above grade, not connected to the house, under 200 square feet, and not at a required egress door; fences require approval when serving as a pool barrier or over 6 feet high; residential sheds 200 square feet or less and commercial sheds 120 square feet or less are building-code exempt; patios generally do not need building approval but may need zoning; qualifying agricultural buildings are exempt under ORC 3781.061; and simple furnace replacements may not require drawings. Ordinary maintenance and other code-specific exemptions should be confirmed.
What makes an application complete
Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.
Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.
Submission quality check
Site: address, parcel, access, setbacks, and existing conditions are consistent.
Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.
Closeout: inspection contacts and the final approval path are understood before work begins.