Off-grid site report
Defiance County, OH
41.2868, -84.3621 · 699 ft elevationRead this before you act on anything below. This is my researched starting point for Defiance County, OH, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.
The local rulesDefiance County, OH
Zoning & raw-land occupancy
Varies locallyDefiance County has no countywide zoning code; each township adopts its own resolution under ORC Chapter 519, and the City of Defiance has a separate municipal zoning code. Always confirm with the specific township or city zoning office. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county-level ordinance on tiny homes or RV occupancy was found; this is governed by whichever township or municipal zoning code covers the parcel, inheriting the state manufactured-home baseline. Confirm permit terms with the local zoning inspector.
Building permits & codes
Varies locallyInside the City of Defiance, the City Services Building issues most construction permits. In unincorporated townships, no dedicated county building department was confirmed, so the state Ohio Board of Building Standards is the likely fallback, especially for commercial work. source
Septic & composting toilets
Generally allowedThe Defiance County General Health District administers an Operation & Maintenance program for septic systems, adopted locally in 2019 under the state's OAC Chapter 3701-29 framework. Composting toilets aren't separately addressed and would likely be reviewed the same way. source
Greywater reuse
Unclear - verifyNo Defiance County-specific greywater ordinance was found. It likely falls under the same OAC 3701-29 sewage framework the county health district administers statewide, but this is not confirmed in a Defiance-specific document.
Rainwater harvesting
Unclear - verifyNo Defiance County page on rainwater harvesting or cisterns was found; this would inherit the state's private water systems framework (OAC 3701-28), typically administered by the local health district, but that is not confirmed for this county.
Private wells & water rights
Unclear - verifyNo Defiance County-specific well-permitting page was found. The county health district appears to handle water sample and water system reports, suggesting some role in well oversight, but a dedicated well ordinance was not confirmed.
Living disconnected from utilities
Unclear - verifyNo Defiance County ordinance requiring connection to electric, water, or sewer utilities was found. Statewide Residential Code of Ohio habitability standards would still apply to any structure built off-grid. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.6 hrs/day
- Worst month (sizes an off-grid array)
- 2.8 hrs/day
- Yearly output per 1 kW of panels
- 1,322 kWh
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Weather1991-2020
- Precipitation
- 37 in/yr
- Heating degree days
- 6,238 (cold)
- Frost-free season
- Apr 21 to Oct 22
How far help isstraight-line
- Hospital
Promedica Defiance Regional Hospital - 1.1 mi
- Fire station
Florida-Flatrock Fire Station - 8.8 mi
- Hardware store
Lowe's - 1.4 mi
- Grocery
La Jaliscience - 0.6 mi
From OpenStreetMap. Road miles will be longer, often much longer in hill country.
Plan this spot
These open with this location's real numbers already filled in (ZIP 43512).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
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Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.