Off-grid site report

Butler County, OH

39.3206, -84.5108 · 807 ft elevation
Read this before you act on anything below. This is my researched starting point for Butler 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 rulesButler County, OH

Zoning & raw-land occupancy
Varies locallyButler County has no countywide zoning; some townships (Fairfield, Liberty, Morgan, St. Clair, Wayne, West Chester) run independent zoning, while the county's Rural Zoning Resolution (under Ohio Revised Code Chapter 303) covers the rest. Confirm which applies to your parcel via the county zoning map/administrator. source
Dwellings, tiny homes & RVs
Unclear - verifyNo Butler County-specific page addresses tiny homes or long-term RV occupancy; this is governed by whichever township or zoning jurisdiction applies, with the state HUD manufactured-home rule as a baseline. Ask the applicable township or county zoning administrator. source
Building permits & codes
Generally allowedThe Butler County Building & Zoning office issues permits in unincorporated areas/served townships and enforces the Residential Code of Ohio; cities/villages with certified departments issue their own. Zoning approval from the applicable township is required before a building permit. source
Septic & composting toilets
Generally allowedThe Butler County General Health District issues septic/HSTS permits and plumbing permits under the state sewage code; a permit is required before construction or major repair, and final inspection is required before occupancy. Composting toilets aren't separately addressed and likely fall under the same review. source
Greywater reuse
Unclear - verifyNo Butler County-specific greywater page was found; the state OAC 3701-29 framework likely applies, administered by the Butler County General Health District, but this is not confirmed in writing for the county. source
Rainwater harvesting
Unclear - verifyNo Butler County page specifically addresses rainwater harvesting or cisterns; if used as a potable private water system, the state OAC 3701-28 rules would apply through the local health district. Not confirmed for non-potable garden-only use.
Private wells & water rights
Generally allowedA permit from the Butler County General Health District is required to construct, alter, or seal a private water system or test well, per state rule OAC 3701-28-03(A); non-potable wells, ponds, springs, cisterns, and hauled water tanks not built as a private water system don't need this permit.
Living disconnected from utilities
Unclear - verifyNo Butler County ordinance was found mandating utility hookups, but where public water/sewer is available, tap fees must be paid before a building permit is issued; a dwelling still needs plumbing/water/sewage inspections cleared before occupancy under state and health district rules. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
4.7 hrs/day
Worst month (sizes an off-grid array)
2.9 hrs/day
Yearly output per 1 kW of panels
1,340 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
43 in/yr
Heating degree days
5,196 (moderate)
Frost-free season
Apr 19 to Oct 21

How far help isstraight-line

Hospital
Beckett Springs
3.3 mi
Fire station
Forest Park Fire Department Station 42
2.4 mi
Hardware store
Harbor Freight Tools
3.1 mi
Grocery
Kroger
2.2 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 45014).

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.