Bolthole Index county-legal census · checked 2026-11-13
19 of Ohio's 88 counties — 22% — set no minimum dwelling size. That is the 7th-largest count of any state. The strongest of them on the Bolthole Index is Morgan County (71/100). Every entry below cites the county’s own official source.
Rules change, and cities inside these counties set their own — treat this as a verified starting point, not legal advice. All 626 counties nationwide → Ohio: no building codes → Ohio: no zoning → Ohio: no codes, no zoning → Ohio: owner-builder → Full Ohio profile →
19 of 88 Ohio counties · sorted by Index score
Minimum dwelling-size rules arising from Morgan County zoning in unincorporated areas that are not part of a subdivision with its own zoning plan. The county statement does not …
Development – Morgan County Engineer ↗Minimum dwelling-size requirements as a county zoning matter in the balances of unincorporated Noble County, excluding Wayne Township and Buffalo Township. This absence finding …
Sewage Treatment Systems – Noble County Health Department ↗County zoning minimum dwelling-size standard in unincorporated Coshocton County. This is a conclusion about county zoning only; non-zoning construction requirements may still ap…
Coshocton County Homebuyer’s Guide ↗Minimum dwelling-size controls under county zoning in unincorporated Jackson County. This is the absence of a county zoning dimensional control, not an exemption from floodplain…
Jackson County Natural Hazards Mitigation Plan, January 2023 ↗County zoning-based minimum dwelling size in most unincorporated areas. This absence is limited to county zoning requirements; building-code and health requirements are not reso…
meigsengineer.org ↗County zoning-based minimum dwelling size in the remaining unincorporated areas of Highland County. This absence applies only to the remaining unincorporated areas; Madison Town…
Highland County- Countywide All Natural Hazards Mitigation Plan 2024-2028 ↗Minimum dwelling-size standard imposed through county zoning in unincorporated Carroll County. This is an absence of a county zoning-based dwelling-size standard, not an exempti…
Carroll County Board of Commissioners Journal 51, February 2, 2026 ↗County zoning-based minimum dwelling size in unincorporated Athens County. Athens County subdivision regulations and applicable state, health, floodplain, and other non-zoning r…
co.athensoh.org ↗Minimum dwelling-size controls imposed by county zoning in unincorporated Jefferson County. No county zoning law supplies a county zoning dwelling-size minimum. This does not es…
Assessment of Fair Housing for Jefferson County, Steubenville and Toronto FY 2020–FY 2024 ↗County zoning minimum-dwelling-size rules in unincorporated areas. No county zoning rule was identified because the county states it does not have zoning. Building, health, sept…
Zoning ↗County-level minimum dwelling-size requirements in Lawrence County; local municipal or township rules are outside this claim. The County states it does not have zoning or land-u…
Commissioners’ Meeting Minutes 1-12-26 ↗County-level zoning minimum-dwelling-size requirements in unincorporated Ashland County. There is no county-wide zoning rule establishing a county-level minimum dwelling size. T…
Building and Zoning ↗County zoning minimum-dwelling-size controls in unincorporated Trumbull County. The absence is limited to countywide zoning; local zoning and building-code rules may impose requ…
Trumbull County Planning Commission — Subdivision Plats & Zoning ↗County zoning minimum dwelling-size standard in unincorporated Champaign County. The county directs all zoning questions or comments to the current township zoning inspector; a …
Zoning ↗County zoning minimum dwelling-size rule in unincorporated Fairfield County. No countywide zoning ordinance applies. Local township zoning, if applicable, may impose dwelling-si…
Township Zoning ↗Minimum dwelling-size zoning requirements in unincorporated Auglaize Township. The official county source states that Auglaize Township is not zoned. Other applicable constructi…
General Information - County Auditor, Paulding County, Ohio ↗County zoning dimensional controls outside Chippewa Township. This is an absence of county zoning; building, health, septic, floodplain, and subdivision rules still apply. Chipp…
Planning Department | Wayne County Ohio ↗Minimum dwelling-size standard imposed by Medina County land-use zoning. This conclusion is limited to county land-use zoning; a township, village, or city may establish a dwell…
Medina County Planning Commission Minutes, January 2, 2019 ↗County zoning minimum-dwelling-size rule in unincorporated Greene County. Township zoning, building-code, and other applicable rules may impose requirements.
Greene County FAQ ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Ohio state page for all 88 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Ohio counties? The kit we'd start with:
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General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.
