Off-grid site report
Dallam County, TX
36.0873, -102.5546 · 4,032 ft elevationRead this before you act on anything below. This is my researched starting point for Dallam 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 rulesDallam County, TX
Zoning & raw-land occupancy
Generally allowedTexas counties cannot adopt zoning ordinances, only cities can, so unincorporated Dallam County has no county zoning. The City of Dalhart does zone within its own limits. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official Dallam County page addresses tiny homes or RVs as dwellings in unincorporated areas; not confirmed. Dalhart city has zoning oversight for manufactured homes inside city limits only. source
Building permits & codes
Unclear - verifyNo official Dallam County building-permit page was found, so whether the county has adopted construction standards for unincorporated areas is not confirmed. Ask the county directly. source
Septic & composting toilets
Generally allowedSeptic (OSSF) systems are regulated statewide by TCEQ, with local permitting usually handled by a designated authorized agent (often the county), though Dallam's specific agent wasn't confirmed. A 10-acre exemption from permitting exists if strict setback and single-dwelling conditions are met. source
Greywater reuse
Unclear - verifyNo separate Dallam County or TCEQ greywater rule was found; greywater appears to be handled within the general OSSF framework rather than as its own program. source
Rainwater harvesting
Generally allowedNo Dallam County restriction on rainwater harvesting was found, and the state baseline generally supports it.
Private wells & water rights
RestrictedAll of Dallam County lies within the North Plains Groundwater Conservation District, which issues well permits and requires annual production reporting for non-exempt wells. source
Living disconnected from utilities
Unclear - verifyNo state or Dallam County law requiring utility hookup was found in official sources; this is not confirmed, and Dalhart city limits could differ.
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
- 1,760 kWh
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Weather1991-2020
- Precipitation
- 18 in/yr
- Snowfall
- 19 in/yr
- Heating degree days
- 4,729 (moderate)
- Frost-free season
- Apr 25 to Oct 17
How far help isstraight-line
- Hospital
Coon Memorial Hospital - 3.1 mi
- Fire station
Dalhart Fire Department - 2.3 mi
- Hardware store
Bartlett's Lumber & Hardware - 2.5 mi
- Grocery
United Supermarkets - 3.5 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 79022).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Dallam 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.