Wise County (county seat: Decatur) covers 905 square miles with a population of 68632. Official county website: www.co.wise.tx.us/. This page summarizes the verified building-regulation posture of unincorporated Wise County land; the full 10-dimension scorecard with every source receipt lives on its Freedom Map card.
Wise County explicitly does not require general building permits in unincorporated areas; only septic (Environmental Services / Public Works) and floodplain development permits from the County Engineer apply, consistent with LGC 233.153(d).
The claim above is source-verified (official statute/county documents; URL, direct quote, and date on the full card). Method: how we verify.
No county's freedom erases state law: septic/wastewater permitting (health authority), well permits and water rights (state engineer/DNR), floodplain rules with federally connected financing, and — in some states — state-run electrical inspections. The full card details which of these bite in Wise County and how hard.
The score describes unincorporated county land only. Inside Wise County, incorporated municipalities set their own, usually stricter, rules — including: City of Decatur enforces zoning, building codes and residential/commercial permits and inspections, including ETJ, Bridgeport, Rhome, Boyd, Aurora, New Fairview and Newark apply their own codes and ETJ platting. Land inside town limits follows town code.
Building rules are the first question people ask about Wise County — and the easiest one to answer. They're rarely the one that decides it. The full card grades all ten dimensions, every claim quoted from the county's own code.
What the Wise County card answers that this page doesn't:
It's a real map. Click any county in the country and see how it grades — that part costs nothing, and you can compare Wise County against its neighbors before you spend a dollar.
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Last verified 2026-07-11 · Not legal advice — confirm current rules with the county, the state, and a professional before buying or building.