Off-grid site report
Rockcastle County, KY
37.2979, -84.2149 · 961 ft elevationRead this before you act on anything below. This is my researched starting point for Rockcastle 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 rulesRockcastle County, KY
Zoning & raw-land occupancy
Unclear - verifyNo official Rockcastle County Fiscal Court or planning page confirms whether the county has adopted zoning; Kentucky law doesn't require it and only about 40 of 120 counties have it. Ask the Fiscal Court directly, and check separately if you're inside Mount Vernon, Brodhead, or Livingston town limits.
Dwellings, tiny homes & RVs
Unclear - verifyNo county-specific rule on tiny homes, RVs, or minimum dwelling size was found; the state Department of Housing, Buildings and Construction is the named authority for the county but no local additions are confirmed. source
Building permits & codes
Varies locallyBuilding codes appear to be administered by the state DHBC for Rockcastle County, with no separate county building department or local code amendments confirmed. source
Septic & composting toilets
Generally allowedSeptic systems are regulated statewide by the Cabinet for Health and Family Services under 902 KAR Chapter 10, with permitting and inspection handled locally by the Rockcastle County Health Department (Cumberland Valley District Health Department). source
Greywater reuse
Unclear - verifyNo Rockcastle-specific greywater ordinance found; it falls under the same statewide 902 KAR Chapter 10 program administered by the Cabinet for Health and Family Services.
Rainwater harvesting
Generally allowedNo official county or state source found restricting rainwater collection for non-potable use in Rockcastle County.
Private wells & water rights
Unclear - verifyNo county-specific well ordinance found; statewide, wells must be constructed by a Kentucky Certified Water Well Driller through the Energy and Environment Cabinet.
Living disconnected from utilities
Unclear - verifyNo official Rockcastle County ordinance was found requiring connection to grid power or municipal water/sewer; not confirmed either way, so ask the Fiscal Court.
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 3.2 hrs/day
- Yearly output per 1 kW of panels
- 1,325 kWh
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Weather1991-2020
- Precipitation
- 49 in/yr
- Snowfall
- 12 in/yr
- Heating degree days
- 4,639 (moderate)
- Frost-free season
- Apr 20 to Oct 22
How far help isstraight-line
- Hospital
Rockcastle Regional Hospital - 7.8 mi
- Fire station
Climax Fire Department - 11.6 mi
- Hardware store
Lumber King Building Supplies - 6.7 mi
- Grocery
IGA - 8.1 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 40445).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Rockcastle 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.