Off-grid site report
Chambers County, TX
29.8188, -94.8982 · 30 ft elevationRead this before you act on anything below. This is my researched starting point for Chambers 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 rulesChambers County, TX
Zoning & raw-land occupancy
Unclear - verifyChambers County has no general zoning authority over unincorporated land, consistent with the Texas state baseline, but it does require permits for development that are reviewed against subdivision, drainage, fire code, and environmental health rules. source
Dwellings, tiny homes & RVs
Varies locallyThe county has a separate Manufactured Home Ordinance referenced in its subdivision manual, but specific rules for tiny homes or RVs beyond that were not confirmed on official sources; ask the Commissioners Court or Permitting Department. source
Building permits & codes
RestrictedPermits are required for any residential or commercial construction, and the county's own Fire Code (effective January 2025) requires a permit before construction starts; a full residential building code adoption was not confirmed. source
Septic & composting toilets
Generally allowedOSSFs are authorized under state law (Texas Health and Safety Code Chapter 366, TCEQ oversight), with Chambers County's Environmental Health and Permitting Department acting as the local permitting and inspecting authority. source
Greywater reuse
Unclear - verifyNo standalone county greywater ordinance was found; it likely falls under the same state OSSF permitting rules, but this is not confirmed for Chambers County specifically, ask Environmental Health and Permitting.
Rainwater harvesting
Generally allowedNo Chambers County restriction on rainwater harvesting was found; the state of Texas generally encourages rainwater collection, and that baseline appears to apply here.
Private wells & water rights
Varies locallyWhether Chambers County falls within an active Groundwater Conservation District was not confirmed; outside a GCD, Texas's rule of capture applies at the state level, and all wells need a licensed driller through TDLR regardless. source
Living disconnected from utilities
Varies locallyNo blanket county requirement to connect to utilities was found; however, in floodplain areas, the county's Floodplain Regulations require proof of a permit from the Flood Plain Administrator before any utility connection is made. source
Sun30-year normals
- Peak-sun hours, annual average
- 5.2 hrs/day
- Worst month (sizes an off-grid array)
- 3.7 hrs/day
- Yearly output per 1 kW of panels
- 1,420 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 60 in/yr
- Snowfall
- 0 in/yr
- Heating degree days
- 1,399 (mild)
- Frost-free season
- Feb 9 to Dec 12
How far help isstraight-line
- Hospital
Houston Methodist San Jacinto Hospital - 6.0 mi
- Fire station
Mont Belvieu Fire Department - 3.2 mi
- Hardware store
Lowe's - 5.4 mi
- Grocery
Kroger - 5.4 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 77580).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Chambers 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.