Off-grid site report
Grant County, KY
38.6805, -84.5963 · 938 ft elevationRead this before you act on anything below. This is my researched starting point for Grant 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 rulesGrant County, KY
Zoning & raw-land occupancy
RestrictedGrant County has adopted countywide zoning through a joint city-county planning structure, administered by the Grant County Planning Commission, and cities like Williamstown and Dry Ridge have their own zoning ordinances that can add restrictions on top of the county plan. Check your specific parcel's zoning classification with the county planning office before assuming you can occupy raw land. source
Dwellings, tiny homes & RVs
Unclear - verifyI couldn't find specific Grant County text on tiny homes or RVs as permanent dwellings, minimum square footage, or occupancy duration rules. Since the county enforces zoning and building codes countywide, treat this as restricted by default and confirm with the Grant County Planning & Zoning office before setting up a tiny home or RV as a residence.
Building permits & codes
RestrictedGrant County has opted into building code enforcement (unlike some Kentucky counties that opt out under state law), and the county Building Department requires a permit before any construction, excavation, or site grading begins, per the Grant County Building Inspector's office enforcing the Kentucky Building Code and county zoning regulations. source
Septic & composting toilets
Generally allowedSeptic systems are allowed but require a permit and inspection through the Northern Kentucky Independent District Health Department's Grant County Health Center, under the state's septic regulations. Composting toilets as a standalone system aren't specifically addressed, so confirm that separately with the health department. source
Greywater reuse
Generally allowedI didn't find any Grant County specific greywater ordinance, so the state septic regulation enforced by the Northern Kentucky Health Department appears to be what applies here. Confirm details with that office if you're planning a greywater system. source
Rainwater harvesting
Generally allowedNo Grant County ordinance restricting rainwater collection for non-potable use turned up in my research, so this appears to fall under the general Kentucky baseline of being allowed. Worth a quick call to the county to be sure nothing local has changed.
Private wells & water rights
Generally allowedKentucky does not require a permit or fee for property owners to construct or abandon a water well, though the work itself must be done by a Kentucky Certified Water Well Driller. I found no Grant County specific well ordinance layered on top of this state rule. source
Living disconnected from utilities
Unclear - verifyNo Kentucky statute or Grant County ordinance explicitly requires connecting to the electric grid, public water, or sewer, but since the county enforces the Kentucky Building Code, a certificate of occupancy may in practice depend on having an approved water supply and sewage disposal method. This link isn't confirmed in county text, so ask the Grant County Building Inspector directly before planning a fully off-grid build.
Sun30-year normals
- Peak-sun hours, annual average
- 4.7 hrs/day
- Worst month (sizes an off-grid array)
- 2.8 hrs/day
- Yearly output per 1 kW of panels
- 1,296 kWh
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Weather1991-2020
- Precipitation
- 45 in/yr
- Snowfall
- 15 in/yr
- Heating degree days
- 4,533 (moderate)
- Frost-free season
- Apr 14 to Oct 26
How far help isstraight-line
- Hospital
Saint Elizabeth Grant Hospital - 2.5 mi
- Fire station
Dry Ridge Fire Department - 0.2 mi
- Hardware store
Ace Hardware - 13.7 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 41035).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Grant 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.