Off-grid site report
Brazos County, TX
30.5988, -96.3017 · 279 ft elevationRead this before you act on anything below. This is my researched starting point for Brazos 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 rulesBrazos County, TX
Zoning & raw-land occupancy
Unclear - verifyBrazos County has no general zoning ordinance, which is typical for Texas counties. County authority is indirect, through subdivision regulation, floodplain permitting, and road access permits; if land is in a city's ETJ, that city also reviews. source
Dwellings, tiny homes & RVs
Varies locallyNo county zoning restricts dwelling type (tiny home, RV, conventional house) outside city limits, but the county does regulate RV/manufactured-home rental communities separately through adopted infrastructure standards. source
Building permits & codes
Unclear - verifyThe county does not appear to require a general residential building permit outside city limits; Road and Bridge handles floodplain development permits and right-of-way access permits. Inside a city or its ETJ, check with that city instead. source
Septic & composting toilets
Generally allowedThe Brazos County Health Department, acting as TCEQ's authorized local agent under state rules (30 TAC Chapter 285) plus a county-specific order, permits and inspects on-site sewage facilities (OSSFs). source
Greywater reuse
Unclear - verifyNo separate Brazos County greywater ordinance was found; greywater disposal likely falls under the same OSSF permitting framework administered by BCHD. Confirm directly with BCHD.
Rainwater harvesting
Generally allowedNo Brazos County restriction on rainwater harvesting was found; this is governed by the general state framework, which is supportive of rainwater collection.
Private wells & water rights
Varies locallyThe Brazos Valley Groundwater Conservation District regulates wells in Brazos and Robertson counties. Wells used only for domestic or livestock use producing under 50,000 gallons per day are exempt from permitting; other wells need a district permit with spacing rules.
Living disconnected from utilities
Unclear - verifyNo Brazos County ordinance was found mandating utility hookups for residences in unincorporated areas. Any such requirement would come from a city ordinance if the property is within city limits or ETJ.
Sun30-year normals
- Peak-sun hours, annual average
- 5.1 hrs/day
- Worst month (sizes an off-grid array)
- 3.9 hrs/day
- Yearly output per 1 kW of panels
- 1,419 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 40 in/yr
- Heating degree days
- 1,607 (mild)
- Frost-free season
- Feb 26 to Dec 2
How far help isstraight-line
- Hospital
St. Joseph Health College Station Hospital - 1.4 mi
- Fire station
College Station Fire Department Station 2 - 0.7 mi
- Hardware store
Harbor Freight Tools - 0.9 mi
- Grocery
Walmart Supercenter - 0.2 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 77840).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Brazos 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.