Tiny home rules in Butler County, OH — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Whether you can live in a tiny home in Butler County depends on your township or city, not the county. ORC Ch. 519 lets townships zone the unincorporated area, and Ohio's building/residential code sets minimum standards for permanent dwellings.
Butler County has no zoning authority over housing type or minimum dwelling size. Under ORC 519.02, township trustees may regulate 'the location, height, bulk, number of stories, and size of buildings' and land uses in the unincorporated area, which lets them set minimum floor areas or bar a tiny home on a lot. A tiny house on a permanent foundation is treated as a dwelling and must meet the Ohio Residential Code; a tiny house on wheels is often treated as a recreational vehicle and may not be allowed as a permanent residence. Cities (Hamilton, Middletown, Fairfield, Oxford) apply their own zoning. Confirm with your local zoning office.
Placing or occupying a tiny home where zoning or the residential code does not allow it can bring zoning and building violations, occupancy denial, and orders to remove it, plus fines.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Butler County's tiny homes rules stack up against other locations.
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