Administrative overview · FIPS 39113
Montgomery County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Montgomery County Building Regulations Division
For a project in or near Montgomery County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
937-225-4622
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Montgomery County Administration Building, 451 West Third Street, 10th Floor, Dayton, OH 45422-1070
Operating hours
Monday-Friday 8:00 AM-4:30 PM
Review expectation
Most residential permits are processed within 3–5 working days; most commercial permits within 7–10 working days after sufficient plan-review information is received. Typical partial permits take 3–5 working days.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
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
Frequently asked questions for Montgomery County
Who handles permitting for this jurisdiction?
Montgomery County Building Regulations Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 937-225-4622.
How long might review take?
Most residential permits are processed within 3–5 working days; most commercial permits within 7–10 working days after sufficient plan-review information is received. Typical partial permits take 3–5 working days.
How are inspections scheduled?
Use the Accela portal for applications and permit payments; payment does not automatically schedule an inspection. Call Montgomery County Building Regulations at 937-225-4622 to schedule inspections. Rough inspections must occur before work is covered and finals after completion; approved plans must be onsite. Beginning July 1, 2026, canceled inspections after 2:00 PM the day before are subject to a $125 fee.
Which codes and exemptions should I review?
2024 Ohio Building Code and current Ohio Mechanical Code for commercial, industrial, and multifamily work; current Residential Code of Ohio for one-, two-, and three-family dwellings; applicable electrical/NFPA, fire, flood-damage prevention, and Wright-Patterson Air Force Base airport-zoning requirements. Maintenance and repairs may be performed without a building permit only when they include no structural, mechanical, electrical, or non-structural wall/partition work. Painting and carpeting are cosmetic exemptions. State/federal projects on state/federal land and agricultural buildings may be exempt from local code enforcement. Single-story detached sheds of 200 square feet or less are generally permit-exempt but must still meet residential-code standards. Minor damage may be repair-permit-exempt only after department assessment.