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Off-grid site report

King County, TX

33.6321, -100.3570 · 1,772 ft elevation
Read this before you act on anything below. This is my researched starting point for King 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 rulesKing County, TX

Zoning & raw-land occupancy
Unclear - verifyNo King County zoning ordinance or map was found; Texas counties generally lack home-rule zoning authority over unincorporated land, and King County has no incorporated municipality, so zoning likely doesn't exist here, but this isn't officially confirmed.
Dwellings, tiny homes & RVs
Unclear - verifyNo county rule on tiny homes, minimum dwelling size, or RV living was found; not confirmed whether King County has exercised the state's limited county authority to set residential construction standards.
Building permits & codes
Unclear - verifyNo building permit process, fee schedule, or adopted code was found on the county's site. Texas has no statewide building code and county adoption is optional, so King County likely has no general permit requirement, but confirm with the County Judge's office. source
Septic & composting toilets
Generally allowedTCEQ (state) requires a permit and approved plan for any on-site sewage facility, including septic systems and holding tanks. Whether King County itself administers these permits locally or defaults to the TCEQ regional office is not confirmed. source
Greywater reuse
Generally allowedGreywater disposal is covered under TCEQ's statewide OSSF rules (Subchapter H), and no King County addition to these rules was found. source
Rainwater harvesting
Generally allowedNo King County rule restricts rainwater harvesting; this follows the general Texas state baseline, which does not prohibit it.
Private wells & water rights
Varies locallyAbsent a local Groundwater Conservation District, Texas's statewide 'rule of capture' would govern well water in King County, but I could not confirm from official sources whether a GCD covers this county.
Living disconnected from utilities
Generally allowedNo King County ordinance requiring utility hookups was found, and since Guthrie is unincorporated, there's no city utility ordinance that could apply either.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
6.0 hrs/day
Worst month (sizes an off-grid array)
4.6 hrs/day
Yearly output per 1 kW of panels
1,679 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
26 in/yr
Snowfall
3 in/yr
Heating degree days
3,200 (moderate)
Frost-free season
Apr 2 to Nov 4

How far help isstraight-line

Hospital
Stonewall Memorial Hospital
34.1 mi
Fire station
none within range
Hardware store
none within range
Grocery
none within range

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 79236).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

Looking at a specific parcel in King 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.
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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.

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