Building permits, zoning and septic rules in Borden County, Texas

Unincorporated Borden County does not require a building permit to put up a home, barn, or shed¹. Texas gives counties no general power to require building permits outside city limits, and Borden County's official site lists no building department or code-enforcement office, consistent with that state limit^1,7. Texas law does let some counties adopt optional residential building-code standards or a fire code for larger buildings, but that authority is tied to population thresholds and a border-distance test that Borden County's own site never confirms it has acted on⁷. If you can't find a definite answer on whether any such order exists, ask the Borden County Judge's office directly rather than assume either way⁸.

There is no Borden County building department, planning office, or zoning office to call, because the county has not created those offices¹. For a septic (OSSF) permit, contact the TCEQ Region 7 office in Midland, which TCEQ's own county lookup lists as Borden County's authorized OSSF permitting agent³. For anything involving a county road, including a driveway, pipeline crossing, or other road-use agreement, use the Road Maintenance & Permits process run through the Commissioners Court⁹. For a new connection to the county-run water system, contact the Borden County Water Department¹⁰. For anything else, including a floodplain question or a permitting question that fits none of those offices, start with the Borden County Judge's office⁸.

No: Borden County has no zoning ordinance, and its official site lists no planning or zoning department¹. Texas law gives counties zoning power only in a few narrow, named situations, and Borden County does not fall under any of them, so the county has no general zoning authority to exercise⁵. In practice this means no countywide minimum home size, no minimum lot size, no setbacks, and no lot-coverage or building-height limit apply to unincorporated Borden County land⁵. It also means the county does not restrict accessory dwellings, RVs, tiny homes, or manufactured homes on a parcel by zoning, because there is no zoning to do the restricting⁵.

Texas requires a permit and an approved plan before you construct, alter, extend, or repair a septic system (an OSSF), and that rule applies in Borden County the same as anywhere else in the state². Septic permits for Borden County come from the TCEQ Region 7 office in Midland, which is the permitting authority wherever no local jurisdiction has been authorized^2,3. Once the application and plan are in, the permitting authority must approve or deny them within 30 days of receipt, and a denial must come with a written explanation that can be appealed². The permitting authority also inspects the installation¹¹. Only 29.2% of Borden County's soils are rated free of severe limitations for a conventional septic drain field, so most sites need extra scrutiny; plan on a site evaluation early and budget for an engineered or alternative system if your land falls in that majority⁴. A narrow exemption exists for a single-family home on a tract of 10 acres or more: it applies only if a TCEQ-licensed site evaluator or engineer signs off, every part of the system stays at least 100 feet from the property line, effluent stays on your property, the system causes no nuisance or groundwater pollution, and the home is the only dwelling on the tract². An owner can install their own system for a single-family home they own on land they own, as long as no part of the property is being developed for sale or lease and the permitting authority allows owner installation; anyone who helps must be a licensed installer, apart from a licensed electrician doing electrical components².

Borden County's lack of zoning means the county does not restrict RV, tiny-home, or manufactured-home occupancy on unincorporated land by ordinance⁵. That follows from Texas law limiting county zoning power and from Borden County never having adopted a zoning ordinance⁵. It is not a guarantee that nothing else applies: a compliant septic system is still required before wastewater can legally be disposed of, so the TCEQ permit above applies to a permanent house and to a trailer parked long-term alike². Borden County is also extremely sparsely populated, at roughly 0.6 people per square mile, so plan for long distances to services and slow response times regardless of what you build or park⁴.

1. Confirm your parcel is unincorporated Borden County land¹.
2. Get a site evaluation for septic before you commit to a house site, then apply for your OSSF permit through the TCEQ Region 7 office in Midland, the permitting authority for Borden County^2,3.
3. If you need a new or altered road access, pipeline crossing, or other road-use agreement on a county road, file a Road Maintenance & Permits application through the Commissioners Court; if your access is instead onto a state highway, TxDOT's farm/ranch driveway guidance calls for a 25-foot return radius and a 20-foot throat width^6,9.
4. Build to whatever standard you choose beyond septic and access: no county building permit or inspection applies in unincorporated Borden County¹.
5. If you want to connect to the county water system rather than drill a well, contact the Borden County Water Department before you finalize your site plan¹⁰.

Water and soils come first: 96.3% of Borden County land sits at 15% slope or less, which is easy to build on, but only 29.2% of soils are rated free of severe limits for a conventional septic drain field, so get a site evaluation before assuming a standard system will work⁴. The county is dry and drought-prone: average annual precipitation is 19.4 inches, and the area has spent 32.8% of recent years in severe drought, which matters for a private well as much as for any garden or livestock plan⁴. Borden County is one of the most sparsely populated counties in Texas, at about 0.6 people per square mile, and sits roughly 62 miles from the nearest metro area, so budget real drive time for supplies, medical care, and emergency response⁴. Farmland here has recently been valued around $1,141 an acre, and the typical home value is about $105,400, useful benchmarks when pricing a parcel⁴. Property taxes run a low effective rate near 0.5%, with a median bill around $493 a year, though a small tax bill often reflects low ag-use valuations rather than a low land price⁴. Average annual temperature runs about 63.9°F, with a projection of around 45.1 days a year at or above 100°F by midcentury, worth weighing for anyone planning to work outdoors⁴. Two more checks. Dividing a tract outside city limits generally requires a plat, though splitting land that will be used primarily for agriculture, farm, ranch, wildlife management or timber without laying out streets or public parts is exempt from that plat requirement, and the platting rules apply as soon as the qualifying use ends^12,13. On flood risk, Borden County takes part in the National Flood Insurance Program and, per the federal listing, has never been flood-mapped, so ask Borden County Emergency Management about your parcel^14,15.