Regulatory framework
The code baseline for Marion County.
2024 Ohio Building Code and the current Ohio Board of Building Standards rules; the current Residential Code of Ohio applies to one-, two-, and three-family residential work where a certified residential department has jurisdiction. The City of Marion's February 2026 guide states its code references are from the 2024 OBC.
Inspection lane
For projects within the City of Marion, use the permit inspection instructions and call the inspection hotline at 740-810-3483 or 614-323-9905, providing the permit number, address or parcel ID, inspection type, instructions, and callback number. For unincorporated commercial work under state jurisdiction, contact Ohio Division of Industrial Compliance; no county scheduler was identified.