Off-grid site report
Trinity County, TX
30.9452, -95.3755 · 243 ft elevationRead this before you act on anything below. This is my researched starting point for Trinity 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 rulesTrinity County, TX
Zoning & raw-land occupancy
Unclear - verifyTrinity County has no confirmed countywide zoning ordinance; Texas counties generally lack home-rule zoning power over unincorporated land, only cities like Trinity or Groveton can zone within their limits.
Dwellings, tiny homes & RVs
Unclear - verifyNo official Trinity County rule on minimum dwelling size, tiny homes, or RV occupancy was found. Texas gives counties limited optional authority here since 2009, but no evidence Trinity County has adopted such standards.
Building permits & codes
Unclear - verifyNo official Trinity County page describes a countywide building permit program or adopted code; many rural Texas counties don't regulate residential construction at all. Confirm directly with the county. source
Septic & composting toilets
Generally allowedTrinity County Environmental Health issues OSSF (septic) permits under authority delegated by TCEQ, including a required initial inspection for setbacks and percolation testing before any grading or construction. source
Greywater reuse
Unclear - verifyNo standalone Trinity County or TCEQ greywater ordinance was found; it appears to be handled within the general OSSF permitting process rather than as its own program.
Rainwater harvesting
Generally allowedNo Trinity County restriction was found on rainwater harvesting, and Texas state policy generally encourages the practice.
Private wells & water rights
Unclear - verifyIt's not confirmed whether Trinity County lies within any Groundwater Conservation District; verify with TCEQ or the Texas Water Development Board's GCD locator before drilling. source
Living disconnected from utilities
Unclear - verifyNo Trinity County ordinance was found requiring connection to electric, water, or sewer utilities in unincorporated areas; such rules would more likely come from a municipality if you're inside city limits. source
Sun30-year normals
- Peak-sun hours, annual average
- 5.2 hrs/day
- Worst month (sizes an off-grid array)
- 4.0 hrs/day
- Yearly output per 1 kW of panels
- 1,425 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 46 in/yr
- Heating degree days
- 1,697 (mild)
- Frost-free season
- Mar 1 to Nov 30
How far help isstraight-line
- Hospital
Huntsville Memorial Hospital - 20.2 mi
- Fire station
Weldon Fire Department - 12.7 mi
- Hardware store
The Home Depot - 19.4 mi
- Grocery
Brookshire Brothers - 0.4 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 75862).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Trinity 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.