Off-grid site report
Armstrong County, TX
35.1096, -101.3588 · 3,412 ft elevationRead this before you act on anything below. This is my researched starting point for Armstrong 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 rulesArmstrong County, TX
Zoning & raw-land occupancy
Unclear - verifyNo countywide zoning ordinance found from Armstrong County; zoning would come from an incorporated town like Claude, Wayside, or Goodnight if your land falls within their limits. Confirm directly with the town if applicable. source
Dwellings, tiny homes & RVs
Unclear - verifyNo Armstrong County standard for tiny homes or RVs was found. Texas has no statewide minimum house size, and county authority here is narrow and not confirmed to have been used by Armstrong County.
Building permits & codes
Unclear - verifyNo published county building permit office or adopted building code was found on Armstrong County's official site; Texas has no statewide mandatory building code. Confirm with the County Judge's office. source
Septic & composting toilets
Generally allowedSeptic (OSSF) systems are permitted through TCEQ Region 1 in Amarillo, not a county-delegated agent, since Armstrong isn't an Authorized Agent county. A single-family home on 10+ acres meeting setback and pollution conditions may be exempt, but confirm with TCEQ. source
Greywater reuse
Unclear - verifyNo standalone Armstrong County greywater rule exists; greywater is folded into the same state OSSF rules administered by TCEQ Region 1. source
Rainwater harvesting
Generally allowedRainwater harvesting is permitted under Texas's general state-level policy encouraging it, and no Armstrong County restriction was found.
Private wells & water rights
Varies locallyArmstrong County straddles two groundwater conservation districts, PGCD and HPWD, each with its own registration or permitting rule depending on well size and location. Confirm which district covers your parcel before drilling. source
Living disconnected from utilities
Unclear - verifyNo Armstrong County ordinance requiring hookup to electric, water, or sewer was found for unincorporated areas; such a rule, if it exists, would come from an incorporated town.
Sun30-year normals
- Peak-sun hours, annual average
- 6.2 hrs/day
- Worst month (sizes an off-grid array)
- 5.0 hrs/day
- Yearly output per 1 kW of panels
- 1,759 kWh
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Weather1991-2020
- Precipitation
- 22 in/yr
- Snowfall
- 14 in/yr
- Heating degree days
- 4,364 (moderate)
- Frost-free season
- Apr 16 to Oct 24
How far help isstraight-line
- Hospital
Northwest Emergency at Tascosa - 30.7 mi
- Fire station
Claude Volunteer Fire Department - 0.1 mi
- Hardware store
Keith's Hardware - 0.1 mi
- Grocery
Hometown Food Store - 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 79019).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Armstrong 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.