Off-grid site report
Hardin County, KY
37.8490, -85.9439 · 761 ft elevationRead this before you act on anything below. This is my researched starting point for Hardin 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 rulesHardin County, KY
Zoning & raw-land occupancy
RestrictedHardin County has adopted countywide zoning for its unincorporated areas, administered by the Hardin County Planning and Development Commission, so raw-land use, conditional uses, and rezonings all go through the Commission and Fiscal Court rather than being a zoning-free county. source
Dwellings, tiny homes & RVs
Unclear - verifyI couldn't find an official Hardin County page spelling out separate standards for tiny homes or RV-as-dwelling; it will hinge on which zone your parcel is in. Best to call the Hardin County Planning and Development Commission directly to confirm before you buy or move onto land.
Building permits & codes
Varies locallyOutside mapped floodplains, home building generally follows Kentucky's state permitting framework, but Hardin County enforces its own Flood Damage Prevention Ordinance requiring a local Development Permit for any construction in a special flood hazard area, on top of any state Division of Water floodplain permit needed for work near a stream. Whether Hardin County has fully opted into local building-permit enforcement for all single-family homes wasn't confirmed, so check with HCPDC. source
Septic & composting toilets
Generally allowedSeptic systems are allowed but require a permit, handled through the Lincoln Trail District Health Department's Environmental office, which covers Hardin County. A site evaluation has to come back suitable before a certified installer can apply for the installation permit. source
Greywater reuse
Generally allowedI found nothing from Hardin County or the Lincoln Trail District Health Department adding rules on top of Kentucky's statewide greywater standards, so the state baseline applies here; it's presumably reviewed by LTDHD alongside septic permitting, but that's not explicitly confirmed in writing.
Rainwater harvesting
Generally allowedNo official Hardin County source imposes restrictions on rainwater harvesting beyond the general state plumbing-code caveat about connecting to potable systems; this isn't specifically confirmed at the county level, but there's no sign of local barriers.
Private wells & water rights
Generally allowedWells are allowed and are regulated at the state level: construction must be done by a Kentucky-certified well driller who reports well details to the Kentucky Division of Water. No separate Hardin County well permit or fee was found; roughly 90 percent of county households outside public water service rely on wells according to University of Kentucky groundwater data. source
Living disconnected from utilities
Unclear - verifyI didn't find a Hardin County ordinance explicitly requiring hookup to grid power, public water, or sewer to occupy a home, so off-grid living looks feasible, but any structure will still need to satisfy applicable zoning, floodplain, septic, and well requirements. Call the Hardin County Planning and Development Commission and the Lincoln Trail District Health Department to confirm there's no occupancy-permit tie-in to utilities before you commit.
Sun30-year normals
- Peak-sun hours, annual average
- 4.8 hrs/day
- Worst month (sizes an off-grid array)
- 3.2 hrs/day
- Yearly output per 1 kW of panels
- 1,312 kWh
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Weather1991-2020
- Precipitation
- 51 in/yr
- Snowfall
- 4 in/yr
- Heating degree days
- 4,709 (moderate)
- Frost-free season
- Apr 18 to Oct 22
How far help isstraight-line
- Hospital
UofL Health - Medical Center Southwest - 19.1 mi
- Fire station
Radcliff City Fire Department - 1.1 mi
- Hardware store
True Value - 0.3 mi
- Grocery
Walmart Supercenter - 0.1 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 40160).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Hardin 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.
Check a parcel →Share or save this report:New report
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.
New here, or not sure where this fits? Start here walks through the whole thing in order.