Off-grid site report
Dallas County, TX
32.7748, -96.8608 · 482 ft elevationRead this before you act on anything below. This is my researched starting point for Dallas 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 rulesDallas County, TX
Zoning & raw-land occupancy
Varies locallyDallas County has no authority to enact zoning; unincorporated land (under 10% of the county, mostly southeastern) is subject only to narrow county regulation, while everywhere else falls under the applicable city's zoning code. source
Dwellings, tiny homes & RVs
Varies locallyIn unincorporated areas, DUAS manages a general construction/development permitting process; manufactured housing is separately regulated by the state, and RVs as permanent dwellings are not confirmed to have a specific county rule. source
Building permits & codes
Generally allowedDallas County requires development permits for construction in unincorporated areas, issued by DUAS through its online mgoConnect portal; anything within city limits must go through that city instead. source
Septic & composting toilets
Generally allowedDallas County Health and Human Services Environmental Health Division issues OSSF permits as TCEQ's local agent, requiring a licensed site evaluation, design approval, floodplain statement, and inspection before use. source
Greywater reuse
Unclear - verifyNo standalone Dallas County greywater page was found; it likely falls under the same state OSSF rules (30 TAC 285) the county's Environmental Health Division already enforces, but this is not confirmed county-specific.
Rainwater harvesting
Unclear - verifyNo Dallas County-specific rainwater harvesting ordinance or program was found; the operating baseline appears to be general state-level encouragement rather than a county rule.
Private wells & water rights
Varies locallyState law barred TCEQ from creating a groundwater conservation district in Dallas County, so the state's default rule of capture applies to any well drilled, though wells are reportedly uncommon locally due to deep or brackish groundwater. source
Living disconnected from utilities
Unclear - verifyNo official Dallas County page was found mandating utility hookups for unincorporated property; wastewater is instead indirectly governed through OSSF and floodplain permitting requirements.
Sun30-year normals
- Peak-sun hours, annual average
- 5.4 hrs/day
- Worst month (sizes an off-grid array)
- 4.2 hrs/day
- Yearly output per 1 kW of panels
- 1,510 kWh
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Weather1991-2020
- Precipitation
- 38 in/yr
- Snowfall
- 2 in/yr
- Heating degree days
- 2,135 (mild)
- Frost-free season
- Mar 4 to Nov 30
How far help isstraight-line
- Hospital
North Central Surgical Center - 8.7 mi
- Fire station
Dallas Fire Station Number 36 - 0.5 mi
- Hardware store
Pierce Hardware - 6.6 mi
- Grocery
Super Mercado Monterrey - 2.9 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 75212).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Dallas 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.