Off-Grid Living in Preble County, Ohio

If you're eyeing raw land in Preble County, Ohio for an off-grid setup, here's what I've found digging through the official sources, with the honest caveat that some of this comes down to which township or village you're in.

Zoning. Preble County runs a countywide rural zoning resolution through its Office of Land Use Management, but here's the catch: each individual township had to formally adopt that resolution, and most of them have (Harrison, Jackson, Washington, Twin, Dixon, Gasper, Lanier, Israel, Monroe, Somers, Jefferson, and others). So unincorporated areas are fairly uniform, but incorporated villages and cities like Eaton, West Alexandria, and New Paris can run their own separate zoning under municipal code. Before you buy, I'd call the Office of Land Use Management to confirm which zoning district applies to a specific parcel.

Dwellings, tiny homes, RVs. Ohio state law (ORC 519.212) requires a permanently sited manufactured home to meet the same zoning standards as a regular single-family home in that district. But townships have the authority to ban travel trailers, park models, mobile homes, and manufactured homes that aren't "permanently sited" from residential districts. If you bring a manufactured home in, the County Auditor's office requires registration, and moving one on a public road requires a Relocation Notice attached to the home. I saw a mention that New Paris might have its own tiny-house or RV ordinance, but I couldn't confirm that from an official source, so treat that as unverified and check with New Paris village hall directly.

Building permits. The county's Office of Land Use Management enforces the Residential Code of Ohio and issues building permits. I don't have confirmed fee amounts or exact timelines, so ask the office directly for current numbers.

Septic and composting toilets. Preble County Public Health's Environmental Health division handles sewage and plumbing permits under the state's OAC 3701-29 framework. Plumbing permits need to be pulled before work starts, and contractors need to register with the county. Composting toilets aren't separately addressed on the county's page that I could find, so I'd ask Environmental Health how they treat those.

Greywater. Not something the county spells out separately, near as I can tell. It likely falls under the same state framework and the same Environmental Health office that handles septic, but confirm before you design a system.

Rainwater harvesting. I found no county-specific rainwater or cistern policy. This appears to fall back to Ohio's general private water system rules (OAC 3701-28), but I'd call Preble County Public Health to be sure there isn't a local wrinkle.

Wells. Private water systems need a permit from Preble County Public Health before installation or alteration, covering any system serving fewer than 25 people a day (which covers virtually every home well). They also publish siting guidance, like keeping proper separation from waste systems and buildings, and keeping the wellhead at least a foot above grade.

Off-grid utilities. I found no Preble County rule requiring hookup to electric, water, or sewer utilities. That said, if you're building a habitable structure, it still has to clear building code and, if occupied, the plumbing and sewage permitting through Public Health.

Bottom line: the county framework is real and fairly organized, but township- and village-level differences matter a lot here, so verify at both levels before you commit to a plan.