Ohio permit requirements
Each county and city in Ohio runs its own permit office with its own thresholds, fees, and portals. Use the links below to find the office and requirements for your project.
Building code in Ohio
Residential Code of Ohio (RCO). Based on the International Residential Code (IRC), with Ohio amendments, for one, two, and three family dwellings.
Administered by Ohio Board of Building Standards (Department of Commerce). Official source
Local jurisdictions administer the RCO.
Most local permit thresholds derive from this code. See our sources and standards.