Off-grid site report

Grady County, OK

35.0299, -97.9330 · 1,152 ft elevation
Read this before you act on anything below. This is my researched starting point for Grady County, OK, 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 rulesGrady County, OK

Zoning & raw-land occupancy
Unclear - verifyNo official Grady County zoning ordinance or map was found on the county's own site. The county handles plat approvals through the Board of Commissioners, but zoning status of unincorporated land is not confirmed; towns like Chickasha set their own zoning. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county ordinance on tiny homes or RV occupancy was found. Oklahoma has no statewide tiny-home law, so this depends on municipal code if you're inside a town, otherwise not confirmed for unincorporated land.
Building permits & codes
Varies locallyUnincorporated Grady County land is permitted through the county, while towns like Chickasha and Tuttle run their own permit offices. The specific adopted building code and fees were not confirmed on an official county page. source
Septic & composting toilets
RestrictedSeptic systems are regulated statewide by the Oklahoma DEQ On-Site Sewage Programs, with sizing based on a required soil test and site conditions rather than a fixed lot minimum. The Grady County Health Department is the local referral point but DEQ holds permitting authority. source
Greywater reuse
Generally allowedNo Grady County ordinance addresses greywater, so the Oklahoma state baseline applies with no county-added restriction confirmed. source
Rainwater harvesting
Generally allowedNo county-specific rainwater ordinance was found; the state baseline of no permit required for non-potable rooftop collection applies.
Private wells & water rights
Generally allowedPrivate wells are permitted under Oklahoma's state well framework; the Grady County Health Department refers well and drinking water questions to DEQ, and no county-specific well ordinance was found. source
Living disconnected from utilities
Unclear - verifyNo Grady County ordinance requiring or waiving grid utility connection was found. Oklahoma has no state law mandating hookup, so this likely depends on whether you're in unincorporated land or a town, not confirmed at the county level.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
5.7 hrs/day
Worst month (sizes an off-grid array)
4.2 hrs/day
Yearly output per 1 kW of panels
1,607 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
37 in/yr
Snowfall
3 in/yr
Heating degree days
3,408 (moderate)

How far help isstraight-line

Hospital
Grady Memorial Hospital
2.1 mi
Fire station
Chickasha Fire Department
2.1 mi
Hardware store
DeBoard's Hardware
9.6 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 73018).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

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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.