Off-grid site report
Hopkins County, TX
33.1359, -95.6032 · 509 ft elevationRead this before you act on anything below. This is my researched starting point for Hopkins 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 rulesHopkins County, TX
Zoning & raw-land occupancy
Varies locallyHopkins County has no general zoning authority over unincorporated land, only subdivision platting control; inside Sulphur Springs city limits and its ETJ, city zoning applies instead. source
Dwellings, tiny homes & RVs
Unclear - verifyThe county has detailed rules for organized RV park/short-term-rental communities, but individual RV or tiny home occupancy on a private rural lot outside such a community is not confirmed. Ask Hopkins County directly. source
Building permits & codes
Unclear - verifySulphur Springs (the city) has adopted the 2018 International Building Code and International Existing Building Code, but no equivalent countywide code adoption for unincorporated Hopkins County was confirmed. source
Septic & composting toilets
Generally allowedHopkins County Environmental Quality administers septic (OSSF) permitting under the statewide TCEQ program and Texas Health and Safety Code Chapter 366, requiring a site evaluation, system design, and pre-cover inspection. source
Greywater reuse
Unclear - verifyNo standalone Hopkins County greywater policy was found; it's presumably addressed within the OSSF design review process rather than as a separate rule. Not confirmed independently.
Rainwater harvesting
Generally allowedNo Hopkins County ordinance restricting rainwater harvesting was found, so the state-level TCEQ/TWDB baseline, which generally encourages it, applies by default.
Private wells & water rights
Varies locallyHopkins County does not appear to fall within a groundwater conservation district based on this research, meaning the state 'rule of capture' would apply; every well still needs a State Well Report filed with TDLR by the licensed driller. Confirm current GCD status directly.
Living disconnected from utilities
Unclear - verifyNo Hopkins County ordinance requiring utility hookups on unincorporated rural land was found, consistent with counties' limited authority in Texas; incorporated towns like Sulphur Springs may have their own requirements not confirmed here. source
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
- 1,492 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 47 in/yr
- Heating degree days
- 2,834 (mild)
- Frost-free season
- Mar 21 to Nov 13
How far help isstraight-line
- Hospital
CHRISTUS Mother Frances Hospital - Sulphur Springs - 1.5 mi
- Fire station
Sulphur Springs Fire Station 2 - 1.0 mi
- Hardware store
Lowe's - 2.0 mi
- Grocery
Brookshire's - 0.6 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 75483).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Hopkins 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.