Off-grid site report
Bullitt County, KY
37.9872, -85.7154 · 440 ft elevationRead this before you act on anything below. This is my researched starting point for Bullitt 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 rulesBullitt County, KY
Zoning & raw-land occupancy
Varies locallyBullitt County has a joint city-county zoning system under KRS Chapter 100, administered by the Bullitt County Planning Commission, covering unincorporated land and member cities alike; district (Agricultural, Residential, etc.) governs what raw land can be used for.
Dwellings, tiny homes & RVs
Unclear - verifyGeneral building code (Kentucky's Appendix Q for tiny homes) applies statewide, but Bullitt County's specific rules on tiny homes and RVs as permanent dwellings aren't confirmed; a Shepherdsville-specific example shows manufactured homes are allowed under certain zoning/acreage conditions in that city. Confirm directly with county Planning and Zoning. source
Building permits & codes
RestrictedThe Bullitt County Department of Building and Safety requires a permit for construction, alteration, or change of use, and reviews plans against the Kentucky Building Code; small accessory structures under a stated small threshold are exempt but setbacks still apply. A septic approval must be secured before the building permit application. source
Septic & composting toilets
Generally allowedThe Bullitt County Health Department runs septic site evaluation and permitting under the state's 902 KAR Chapter 10 rules; homeowners can self-install with a permit, or a Certified Installer can apply on their behalf. A sewage permit must be obtained before a building permit is issued. source
Greywater reuse
Unclear - verifyNo Bullitt County-specific greywater ordinance was found; this likely defaults to Kentucky's state greywater rule (902 KAR 10:085). Not confirmed locally, so ask the county Health Department to be sure.
Rainwater harvesting
Unclear - verifyNo Bullitt County ordinance addressing rainwater harvesting was found. Kentucky has no dedicated state permit scheme for non-potable rainwater use, so this likely follows that state baseline, but it's not confirmed county-specific.
Private wells & water rights
Unclear - verifyNo Bullitt County-specific well ordinance was located; Kentucky's state rule (work done by a Certified Well Driller, no separate state construction permit) likely applies by default. If near a water district line, check that district's own cross-connection policy separately.
Living disconnected from utilities
Unclear - verifyNo Bullitt County ordinance was found explicitly mandating grid power or public water/sewer hookup for occupancy; an approved septic system appears to satisfy wastewater needs, but a full occupancy/utility mandate (or its absence) isn't confirmed in official sources reviewed.
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 3.3 hrs/day
- Yearly output per 1 kW of panels
- 1,345 kWh
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Weather1991-2020
- Precipitation
- 49 in/yr
- Snowfall
- 5 in/yr
- Heating degree days
- 4,172 (moderate)
- Frost-free season
- Apr 17 to Oct 21
How far help isstraight-line
- Hospital
Norton Audubon Hospital - 15.8 mi
- Fire station
SE Bullitt Volunteer Fire Dept - 4.5 mi
- Hardware store
Highview Hardware Store - 11.8 mi
- Grocery
Kroger - 0.4 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 40166).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Bullitt 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.