Off-grid site report
Stonewall County, TX
33.1401, -100.2280 · 1,801 ft elevationRead this before you act on anything below. This is my researched starting point for Stonewall 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 rulesStonewall County, TX
Zoning & raw-land occupancy
Unclear - verifyNo Stonewall County or Aspermont zoning ordinance was found; Texas counties generally lack zoning power over unincorporated land, so the state default of no zoning very likely applies outside Aspermont town limits. Confirm with the Stonewall County Commissioners Court. source
Dwellings, tiny homes & RVs
Unclear - verifyTexas counties have narrow, optional authority (since 2009) to set residential construction standards, but no evidence Stonewall County has adopted any tiny-home or RV occupancy rules was found.
Building permits & codes
Unclear - verifyTexas has no statewide building code and no Stonewall County building department or adopted code was located; permitting inside Aspermont would be handled by the town, not the county. source
Septic & composting toilets
RestrictedAll Texas on-site sewage facilities require a TCEQ permit under the statewide OSSF program (30 TAC Chapter 285); Stonewall County does not appear to hold Authorized Agent status, so the nearest TCEQ regional office likely handles permitting, though this specific local arrangement isn't confirmed. A limited exemption exists for single-family homes on 10+ acres meeting site conditions. source
Greywater reuse
Unclear - verifyNo dedicated Stonewall County or standalone TCEQ greywater rule was found; greywater appears to be folded into the general OSSF/septic framework. Ask TCEQ's OSSF program to confirm.
Rainwater harvesting
Generally allowedNo Stonewall County restriction was found, and Texas encourages rainwater harvesting at the state level (Texas Water Development Board) with backflow/cross-connection rules only applying for potable hookups.
Private wells & water rights
Unclear - verifyWhether Stonewall County lies within a Groundwater Conservation District was not confirmed; if it does, that district's rules govern well permitting instead of the state's default rule of capture. Check TCEQ's GCD directory. source
Living disconnected from utilities
Generally allowedNo Texas law and no Stonewall County ordinance requiring utility hookup was found; living disconnected appears allowed at the county level, though Aspermont town rules could differ if you're within town limits.
Sun30-year normals
- Peak-sun hours, annual average
- 6.0 hrs/day
- Worst month (sizes an off-grid array)
- 4.8 hrs/day
- Yearly output per 1 kW of panels
- 1,692 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 24 in/yr
- Snowfall
- 4 in/yr
- Heating degree days
- 2,972 (mild)
How far help isstraight-line
- Hospital
Stonewall Memorial Hospital - 0.7 mi
- Fire station
- none within range
- Hardware store
White's Hardware - 24.2 mi
- Grocery
Glen's Thriftway - 24.1 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 79502).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Stonewall 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.