Off-grid site report
Lamb County, TX
34.1887, -102.1229 · 3,596 ft elevationRead this before you act on anything below. This is my researched starting point for Lamb 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 rulesLamb County, TX
Zoning & raw-land occupancy
Generally allowedLamb County has no countywide zoning or land-use permitting outside incorporated towns; this is confirmed on the county's own permits page. Inside Littlefield, Amherst, or other incorporated towns, the town itself would set land-use rules, not the county. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official Lamb County rule on dwelling size, tiny homes, or RV occupancy was found for unincorporated land. If it exists at all, it would come from an incorporated town like Littlefield or Amherst, not confirmed from an official municipal source here.
Building permits & codes
Unclear - verifyLamb County's official permits page names the courthouse as a general contact but does not confirm an adopted countywide building code for unincorporated land. Incorporated towns enforce their own codes separately. source
Septic & composting toilets
Generally allowedSeptic systems (OSSFs) statewide, including in Lamb County, are regulated under Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285, administered by TCEQ or a county-authorized agent. Whether Lamb County itself is the authorized local agent versus the TCEQ regional office is not confirmed. source
Greywater reuse
Unclear - verifyNo separate Lamb County or state greywater ordinance was found; greywater appears to be folded into the general OSSF/septic framework rather than treated as its own category.
Rainwater harvesting
Generally allowedNo Lamb County restriction on rainwater harvesting was found, and the Texas Water Development Board encourages it statewide, so this appears to carry through unchanged for Lamb County.
Private wells & water rights
RestrictedThe High Plains Underground Water Conservation District No. 1, which covers Lamb County, requires a permit for wells expected to produce 17.5 gallons per minute or more; smaller domestic/exempt wells don't need a permit but can be voluntarily registered for free. source
Living disconnected from utilities
Unclear - verifyNo Lamb County ordinance requiring utility hookups on unincorporated land was found, consistent with the county's lack of general zoning authority. Any mandatory-connection rule would have to come from an incorporated town, not confirmed here.
Sun30-year normals
- Peak-sun hours, annual average
- 6.3 hrs/day
- Worst month (sizes an off-grid array)
- 4.9 hrs/day
- Yearly output per 1 kW of panels
- 1,777 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 19 in/yr
- Snowfall
- 8 in/yr
- Heating degree days
- 4,191 (moderate)
- Frost-free season
- Apr 11 to Oct 26
How far help isstraight-line
- Hospital
Covenant Health Plainview - 22.3 mi
- Fire station
- none within range
- Hardware store
Ace Hardware - 21.7 mi
- Grocery
Lowe's Market - 18.0 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 79064).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Lamb 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.