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Off-grid site report

Washington County, KY

37.6964, -85.1902 · 853 ft elevation
Read this before you act on anything below. This is my researched starting point for Washington County, KY, 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 rulesWashington County, KY

Zoning & raw-land occupancy
Unclear - verifyWashington County has a Planning Commission and Subdivision Regulations that reference a separate Zoning Ordinance, but that ordinance's actual content wasn't confirmed online. Springfield city limits use a separate city zoning code. source
Dwellings, tiny homes & RVs
Unclear - verifyNo Washington County-specific rule on tiny homes, manufactured homes, or RV occupancy was confirmed; subdivision regs only address multi-unit mobile home parks. Treated as inheriting the state baseline until the county zoning ordinance is clarified.
Building permits & codes
Unclear - verifyNo Washington County building department page confirms whether unincorporated areas enforce building permits and inspections; Kentucky's KRS 198B.060 leaves that decision to localities. Springfield city limits follow the city's own code. source
Septic & composting toilets
Generally allowedThe Lincoln Trail District Health Department's Environmental office issues permits and inspects septic and on-site sewage systems for Washington County, under statewide 902 KAR Chapter 10 rules. source
Greywater reuse
Generally allowedNo Washington County-specific greywater rule was found; this falls under Kentucky's statewide 902 KAR 10:085 framework.
Rainwater harvesting
Generally allowedNo county ordinance restricting rainwater catchment was found; follows the state's generally permissive baseline.
Private wells & water rights
Generally allowedKentucky has no statewide construction permit requirement for routine private wells, and no Washington County-specific well rule was found. Well work should be done by a Kentucky Certified Water Well Driller per state rule (401 KAR 6:310).
Living disconnected from utilities
Unclear - verifyNo Washington County ordinance requiring grid power or municipal water/sewer hookup was found for unincorporated land; Springfield's own city code may differ within city limits but wasn't researched in detail.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
4.8 hrs/day
Worst month (sizes an off-grid array)
3.4 hrs/day
Yearly output per 1 kW of panels
1,351 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
50 in/yr
Snowfall
12 in/yr
Heating degree days
4,338 (moderate)
Frost-free season
Apr 14 to Oct 23

How far help isstraight-line

Hospital
Spring View Hospital
9.6 mi
Fire station
Perryville Fire Department
13.4 mi
Hardware store
Lowe's
15.0 mi
Grocery
Kroger
8.6 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 40069).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

Looking at a specific parcel in Washington County, KY?The rules above are the jurisdiction. The land check runs the parcel itself: flood zone, soils and septic suitability, wetlands, slope, access, climate, and these verdicts, from a parcel number or coordinates.
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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.

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