3 county-level rules, plus city-specific rules for 1 city in Hamilton County, Ohio.
Verified from official government sources
Front, side, and rear setbacks in Hamilton County are set by each city, village, or township zoning code, not by the county. Townships set them under ORC 519.02; accessory buildings in Colerain must sit at least 5 feet from all lot lines.
Maximum building height is set by your city, village, or township zoning district, not by Hamilton County. Colerain Township caps residential accessory buildings at 15 feet and forbids them exceeding the height of the main house.
Maximum lot coverage is a local zoning standard, not a county one. Townships set it under ORC 519.02, which authorizes regulating the "percentages of lot areas that may be occupied." Colerain caps accessory buildings at 30% of the rear yard.
1 cities in Hamilton County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
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Hamilton County Ordinance Hub →