Off-grid site report
Randall County, TX
35.1717, -101.8624 · 3,675 ft elevationRead this before you act on anything below. This is my researched starting point for Randall 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 rulesRandall County, TX
Zoning & raw-land occupancy
Varies locallyRandall County has no general zoning authority in unincorporated areas or the ETJ, but it does enforce subdivision platting rules for all land outside Amarillo and Canyon. Inside those cities or their ETJ, city zoning applies instead. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county-specific ordinance on tiny homes or RVs as dwellings was confirmed; the county does require an approved plat/address process before a building can get an address, which affects any dwelling placement. Confirm directly with the county. source
Building permits & codes
Varies locallyWhether Randall County has adopted a general residential building code for unincorporated areas is not confirmed, but a Class B Development Permit is required for any development in the mapped 100-year floodplain, and building in a floodway is prohibited. source
Septic & composting toilets
Generally allowedSeptic (OSSF) systems are permitted through the Amarillo Area Public Health District, the designated permitting authority for Randall County, following Texas Administrative Code Chapter 285 standards. Composting toilets are not separately addressed in official sources found. source
Greywater reuse
Unclear - verifyNo standalone Randall County greywater policy was found; greywater appears to be handled within the same OSSF permitting structure as septic, administered by the Amarillo Area Public Health District. Confirm specifics with that office. source
Rainwater harvesting
Unclear - verifyNo Randall County ordinance on rainwater harvesting was found, so the state's generally permissive baseline (no permit needed for basic domestic use) likely applies, but this is not locally confirmed.
Private wells & water rights
Varies locallyRandall County falls within the High Plains Underground Water Conservation District No. 1, which regulates well drilling, spacing, and production rather than leaving it to pure rule of capture. Contact the district directly for permitting and exemption details. source
Living disconnected from utilities
Unclear - verifyNo Randall County ordinance requiring connection to electric, water, or sewer utilities in unincorporated areas was found. Properties inside Amarillo or Canyon city limits would instead follow those cities' rules.
Sun30-year normals
- Peak-sun hours, annual average
- 6.2 hrs/day
- Worst month (sizes an off-grid array)
- 4.8 hrs/day
- Yearly output per 1 kW of panels
- 1,757 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 20 in/yr
- Snowfall
- 18 in/yr
- Heating degree days
- 4,178 (moderate)
- Frost-free season
- Apr 15 to Oct 24
How far help isstraight-line
- Hospital
Thomas E. Creek VA Medical Center - 3.3 mi
- Fire station
Amarillo Fire Station 5 - 0.9 mi
- Hardware store
Sutherlands HomeBase - 1.1 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 79110).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Randall 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.