Off-grid site report
DeWitt County, TX
29.2894, -97.1493 · 315 ft elevationRead this before you act on anything below. This is my researched starting point for DeWitt 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 rulesDeWitt County, TX
Zoning & raw-land occupancy
Generally allowedDeWitt County has no countywide zoning and states no permit is required outside city limits; incorporated towns within the county may zone independently. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county ordinance on minimum dwelling size or RV occupancy outside city limits was found; manufactured homes fall under Texas Department of Housing and Community Affairs rules statewide. Confirm RV-specific rules with the county. source
Building permits & codes
Generally allowedDeWitt County states no building permit is required outside city limits and directs residents to follow state building code regulations; towns within the county issue their own permits. source
Septic & composting toilets
RestrictedSeptic (OSSF) systems require a permit through Victoria County Public Health Department, acting as authorized agent for DeWitt County under statewide TCEQ rules. source
Greywater reuse
Unclear - verifyNo DeWitt County-specific greywater rule was found; it likely falls under the general OSSF framework administered by Victoria County Public Health Department. Confirm directly with that office.
Rainwater harvesting
Unclear - verifyNo DeWitt County ordinance on rainwater harvesting was found; the county appears to defer to state-level encouragement with no local supplement located.
Private wells & water rights
RestrictedDeWitt County lies within the Pecan Valley Groundwater Conservation District, which requires everyone drilling a well, including exempt domestic wells, to file a permit with the district first. source
Living disconnected from utilities
Generally allowedNo DeWitt County ordinance was found requiring connection to electric, water, or sewer utilities outside city limits; towns within the county may impose their own requirements.
Sun30-year normals
- Peak-sun hours, annual average
- 5.3 hrs/day
- Worst month (sizes an off-grid array)
- 4.1 hrs/day
- Yearly output per 1 kW of panels
- 1,461 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 41 in/yr
- Snowfall
- 0 in/yr
- Heating degree days
- 1,482 (mild)
- Frost-free season
- Feb 25 to Dec 5
How far help isstraight-line
- Hospital
Yoakum Community Hospital - 1.7 mi
- Fire station
Yoakum Fire Department - 0.1 mi
- Hardware store
Mraz Lumber - 9.1 mi
- Grocery
H-E-B - 0.3 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 77995).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in DeWitt 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.