Off-grid site report

Fairfield County, OH

39.7441, -82.6468 · 837 ft elevation

Read this before you act on anything below. This is my researched starting point for Fairfield 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 rulesFairfield County, OH

Zoning & raw-land occupancy

Varies locallyFairfield County has no countywide zoning; it's adopted individually by townships, cities, and villages, per the Fairfield County Regional Planning Commission. Clear Creek and Madison Townships currently have no zoning at all. source

Dwellings, tiny homes & RVs

Unclear - verifyNo countywide standard on tiny homes or RV occupancy was found; this is set at the township/municipal level along with zoning. Check the applicable township zoning resolution directly. source

Building permits & codes

Varies locallyThe Fairfield County Building Department only handles commercial permits in unincorporated areas (except Violet Township). Residential 1-3 family homes are permitted at the township/municipal level under the state Residential Code of Ohio. source

Septic & composting toilets

Generally allowedThe Fairfield County Health Department administers septic (Household Sewage Treatment Systems and Small Flow Onsite Systems) under state rules at OAC 3701-29, issuing permits for new installs, replacements, and alterations. source

Greywater reuse

Generally allowedGray Water Recycling Systems are explicitly covered and permitted by the Fairfield County Health Department under the same state sewage framework as septic. source

Rainwater harvesting

Generally allowedNo county-specific rainwater ordinance was found; harvesting for potable use appears to fall under the state private water systems framework administered by the county Health Department. source

Private wells & water rights

Generally allowedPrivate wells, springs, cisterns, and ponds used as drinking water supply are permitted through the state-mandated Private Water Systems program, administered locally by the Fairfield County Health Department, including water testing and required isolation distances from new structures. source

Living disconnected from utilities

Unclear - verifyNo county ordinance was found requiring or forbidding full utility disconnection; since zoning enforcement is local, this would be a township-level question. Not confirmed, verify with the township zoning inspector for the specific parcel.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.5 hrs/day
Worst month (sizes an off-grid array): 2.6 hrs/day
Yearly output per 1 kW of panels: 1,257 kWh

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Weather1991-2020

Precipitation: 39 in/yr
Heating degree days: 5,298 (moderate)
Frost-free season: Apr 19 to Oct 19

How far help isstraight-line

Hospital Diley Ridge Medical Center: 10.3 mi
Fire station Fire Station Number 1: 3.4 mi
Hardware store Menards: 0.4 mi
Grocery Walmart Supercenter: 0.3 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 43130).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

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.