Off-grid site report

Orange County, TX

29.8777, -93.8440 · 0 ft elevation

Read this before you act on anything below. This is my researched starting point for Orange 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 rulesOrange County, TX

Zoning & raw-land occupancy

Varies locallyOrange County has no general zoning ordinance for unincorporated land, but requires a Development Permit for construction, moved structures, or major improvements tied to floodplain compliance. Land inside City of Orange limits or its ETJ falls under that city's separate zoning code. source

Dwellings, tiny homes & RVs

Varies locallyThe county permits and inspects RV parks and manufactured home parks through its Environmental Health and Code Compliance Department, but whether a single RV or tiny home can be a permanent unhosted residence on raw unplatted land is not confirmed. source

Building permits & codes

Unclear - verifyState law allows counties to adopt residential building code standards for unincorporated areas, and the county issues Development Permits tied to floodplain rules, but full IRC/IBC-type code adoption for unincorporated Orange County is not confirmed. source

Septic & composting toilets

Generally allowedOrange County's Environmental Health and Code Compliance Department is the local permitting authority for On-Site Sewage Facilities under state (TCEQ) construction standards, requiring a site plan and soil analysis before installation. source

Greywater reuse

Unclear - verifyNo standalone Orange County greywater ordinance was found; it likely falls under the same state OSSF framework the county administers, but this is not confirmed. Ask the Environmental Health and Code Compliance Department directly.

Rainwater harvesting

Unclear - verifyNo Orange County ordinance addressing rainwater harvesting was found; the state of Texas generally encourages rainwater harvesting for domestic use, but no county-specific confirmation exists.

Private wells & water rights

Varies locallyNo confirmed Groundwater Conservation District covers Orange County, so the state's default rule of capture likely applies to private wells; confirm your parcel's status with the Texas Water Development Board. source

Living disconnected from utilities

Unclear - verifyNo official Orange County rule was found requiring connection to electric, water, or sewer utilities for unincorporated residences; such requirements, if they exist, would more likely come from a specific municipality like the City of Orange.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.2 hrs/day
Worst month (sizes an off-grid array): 3.8 hrs/day
Yearly output per 1 kW of panels: 1,442 kWh

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Weather1991-2020

Precipitation: 60 in/yr
Heating degree days: 1,402 (mild)
Frost-free season: Feb 16 to Dec 8

How far help isstraight-line

Hospital CHRISTUS Southeast Texas - Saint Mary: 5.3 mi
Fire station Port Arthur Fire Department - Chief: 5.4 mi
Hardware store Lowe's: 9.8 mi
Grocery La Morenita Meat Market: 4.9 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 77642).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

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 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.