Off-grid site report
Franklin County, KY
38.1854, -84.7983 · 784 ft elevationRead this before you act on anything below. This is my researched starting point for Franklin 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 rulesFranklin County, KY
Zoning & raw-land occupancy
Varies locallyFranklin County has adopted countywide zoning administered jointly with the City of Frankfort; unsewered rural lots face specific minimum size and width standards set by the county zoning code. source
Dwellings, tiny homes & RVs
RestrictedA county ordinance restricts which manufactured/mobile homes may be placed, and unsewered lots must meet minimum size/width rules with health department site evaluation; RVs or tiny homes on wheels as permanent dwellings are not addressed in any county rule found, so that's unconfirmed, ask Building Code Enforcement. source
Building permits & codes
RestrictedA building permit from the county Building Inspector is required for any habitable structure outside Frankfort city limits, per the county code enforcing the Kentucky Building Code. source
Septic & composting toilets
Generally allowedSeptic systems are allowed but require a site evaluation and permit through the Franklin County Health Department under the state's 902 KAR 10:085 rules; composting toilets aren't separately addressed locally, so that piece is not confirmed beyond the state baseline. source
Greywater reuse
Generally allowedNo Franklin County-specific greywater ordinance was found; the county appears to simply inherit the state's on-site sewage framework without adding distinct local terms.
Rainwater harvesting
Generally allowedNo county ordinance restricting rainwater collection was found, so this appears to inherit the state baseline unchanged; not confirmed with a specific county source.
Private wells & water rights
Unclear - verifyThe Franklin County Water District's rules govern its own utility infrastructure, not private wells, and no county health department page on private well permitting was found; whether any local layer exists beyond the state certified-driller rule is not confirmed.
Living disconnected from utilities
Unclear - verifyNo explicit county ordinance bans disconnecting from grid power or public water/sewer, but going off public sewer means your lot must still meet the county's unsewered-lot size and health department sanitation standards. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 3.0 hrs/day
- Yearly output per 1 kW of panels
- 1,328 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 46 in/yr
- Heating degree days
- 4,701 (moderate)
- Frost-free season
- Apr 17 to Oct 22
How far help isstraight-line
- Hospital
Frankfort Regional Medical Center - 6.1 mi
- Fire station
Frankfort Fire and EMS Station #1 - 4.4 mi
- Hardware store
Lowe's - 5.7 mi
- Grocery
Kroger - 1.8 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 40621).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Franklin 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.