Off-grid site report
Hardeman County, TX
34.2919, -99.7516 · 1,608 ft elevationRead this before you act on anything below. This is my researched starting point for Hardeman County, TX, 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 rulesHardeman County, TX
Zoning & raw-land occupancy
Unclear - verifyNo official Hardeman County zoning ordinance or department page was found; Texas counties generally lack zoning power over unincorporated land unless specifically authorized, so this is unconfirmed. Incorporated towns like Quanah or Chillicothe may have their own rules. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county ordinance on tiny homes, minimum dwelling size, or RV occupancy was found. Texas counties have only limited optional authority here since 2009, and no evidence Hardeman County has used it.
Building permits & codes
Unclear - verifyNo official Hardeman County building permit page or adopted code was located. Texas has no statewide building code and counties aren't required to adopt one, so status is unconfirmed; check with the Commissioners Court. source
Septic & composting toilets
Generally allowedTCEQ requires an OSSF permit statewide under Health & Safety Code Chapter 366 and 30 TAC Chapter 285, with a possible 10-acre exemption for qualifying single-family properties. Whether Hardeman County or the TCEQ regional office administers permitting locally is not confirmed. source
Greywater reuse
Unclear - verifyNo standalone greywater rule exists; it's handled under the same state OSSF/30 TAC 285 framework, with no Hardeman County-specific variance found. source
Rainwater harvesting
Generally allowedRainwater harvesting is encouraged under the state framework via the Texas Water Development Board, and no Hardeman County restriction was found.
Private wells & water rights
Varies locallyNo Groundwater Conservation District covering Hardeman County was found, so the default state 'rule of capture' likely applies, but this should be verified directly with TWDB's district directory. source
Living disconnected from utilities
Unclear - verifyNo Hardeman County ordinance requiring utility hookups on unincorporated land was found; any such rule would more likely come from an incorporated town like Quanah or Chillicothe. source
Sun30-year normals
- Peak-sun hours, annual average
- 5.9 hrs/day
- Worst month (sizes an off-grid array)
- 4.5 hrs/day
- Yearly output per 1 kW of panels
- 1,658 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 27 in/yr
- Snowfall
- 4 in/yr
- Heating degree days
- 3,409 (moderate)
- Frost-free season
- Apr 3 to Nov 1
How far help isstraight-line
- Hospital
Hardeman County Memorial Hospital - 0.7 mi
- Fire station
- none within range
- Hardware store
- none within range
- Grocery
United Supermarkets - 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 79252).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Hardeman County, TX?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 21, 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.