Texas · Off-grid & homestead potential
Duval County scores 57/100 on the Bolthole Index, a solid county profile. Its strengths are low administrative friction for a quiet rural property and manageable long-term carry cost. The trade-offs: thin water margin (24″/yr rainfall) and elevated mid-century heat, water, rain, or wildfire exposure.
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Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
Scout Duval County
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Property hunt
Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.
Each button opens a current land search for Duval County. Listing sites control their own results and filters.
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Working estimate
A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.
Before an offer
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What it takes to build here — permits, zoning, and septic — scouted from Duval County’s own official sources.
Duval County's official department list includes no building/permitting or planning department; as a Texas county it has no general building code authority in unincorporated areas.
Duval County, Texas - Official County Website ↗Texas counties lack general zoning authority in unincorporated areas and Duval County lists no planning/zoning department.
Duval County, Texas - Official County Website ↗OSSF/septic permits are required statewide under 30 TAC Ch. 285; no local authorized agent or county environmental health office was found for Duval County, so the TCEQ regional office is the presumptive permitting authority.
TCEQ - Getting a Permit for an OSSF ↗Under TCEQ rules a property owner may install an on-site sewage facility to serve their own single-family residence, subject to permit and inspection.
TCEQ - OSSF Information for Homeowners ↗Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Not published on an official source — confirm with the county.
Always confirm current rules with Duval County (unincorporated) / TCEQ for OSSF before you buy or build. Scouted Jul 2026 from official county sources.
Duval County scores 57/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost. Watch-outs: thin water margin (24″/yr rainfall) and elevated mid-century heat, water, rain, or wildfire exposure.
Duval County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Texas Commission on Environmental Quality (TCEQ) regional office. Owner-builders may act as their own contractor to build their home. Rules change and cities within the county differ — always confirm with the county before you buy or build.
Land in Duval County runs about $1,532 per acre, based on the latest county data.
Duval County gets about 24" of rain a year, with severe drought in roughly 21.8% of years.
A representative private-land location has about 1,991 people within a 30-minute drive and 834,396 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
Off-grid gear
Going off-grid in Duval County means bringing your own water and power. The kit we’d start with:
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