Building permits, zoning and land rules in Jeff Davis County, Texas

No. Jeff Davis County does not require a building permit for an ordinary single-family home in its unincorporated area and has no building department to issue one¹. A separate Texas residential-code provision can apply only after a qualifying county adopts it by resolution or order; we could not confirm that Jeff Davis County has done so⁶. If that provision applies, a new residence on a vacant lot must receive foundation, framing-and-mechanical, and final inspections, with the builder hiring an authorized inspector; additions are inspected as their scope requires⁷. Because Jeff Davis County has no county building permit, it publishes no owner-builder permit exemption; the state inspection law instead gives a narrow penalty protection to a person building or contracting a primary residence who fails to submit the required notice^4,7.

There is no building, planning or zoning department in unincorporated Jeff Davis County¹. The Jeff Davis County Judge's Office at the county courthouse in Fort Davis handles general county administration, and it is the office to start with for anything the website doesn't list a specific department for, including septic (OSSF) permit questions⁸. The Jeff Davis County Clerk records deeds, plats and other official public records⁹. The Jeff Davis County Tax Assessor-Collector handles property tax assessment and collection¹⁰.

No. Texas lets counties zone only in a short list of specific places, and Jeff Davis County is not on it, so the county has no general zoning authority over unincorporated land². With no county zoning ordinance, Jeff Davis County sets no minimum home size, no minimum lot size, no setbacks, and no lot-coverage or building-height limit, and it does not restrict accessory dwellings, RVs, tiny homes, manufactured homes or temporary camping on your own unincorporated land². That applies to unincorporated county land only: if a parcel is inside Valentine or Fort Davis, ask that community about its own rules, because we could not confirm what they are¹. Septic stays with the county either way: OSSF permits do not move to a town³.

Jeff Davis County is the authorized agent for septic (OSSF) permits in the unincorporated county, while TCEQ's Region 06 office in El Paso covers areas outside that authority³. Submit the application and planning materials to the permitting authority before constructing, altering, repairing, extending or operating a septic system or holding tank; the authority must approve or deny a complete submission within 30 days of receipt⁴. A single-family home on at least 10 acres may avoid the permit only after a licensed site evaluator or professional engineer confirms every condition, including a 100-foot property-line separation, on-property effluent disposal, no nuisance or groundwater pollution, and no other dwelling on the tract⁴. An owner may install the system for a single-family home the owner owns, but only if the permitting authority allows owner installation⁴. We could not find a Jeff Davis County OSSF fee schedule; the state's $10 fee is only what an authorized agent collects and reports, not the full local fee, so ask the County Judge's Office what the county charges^8,11. Only about 11.7% of county soils lack severe limitations for a conventional drain field, so arrange the site evaluation before assuming a standard system will work⁵. Systems using secondary treatment or drip irrigation require inspection every four months, although qualifying single-family homeowners may maintain their own systems; that rule does not cover every conventional system¹².

Yes, on unincorporated county land: Jeff Davis County does not use zoning to restrict RV, tiny-home or manufactured-home occupancy on private land². Texas law does not give Jeff Davis County general zoning power over that land². Off-grid living still requires lawful wastewater disposal: an OSSF generally needs a permit and approved plan, and the exemption for a single-family home on at least 10 acres applies only when every site-evaluation, setback, groundwater, nuisance, effluent-disposal and single-dwelling condition is met⁴. Inside Valentine or Fort Davis, ask that community directly because local rules may differ and we could not confirm them¹.

1. Confirm the parcel is in unincorporated Jeff Davis County rather than inside Fort Davis or Valentine city limits, where municipal rules may apply¹.
2. No county building permit is required, but ask the County Judge's Office whether the state residential inspection provision has been adopted for your project before work begins^1,7,8.
3. Submit the OSSF application and plan to Jeff Davis County, or document that every condition of the 10-acre exemption is met; the permitting authority has 30 days from receipt to approve or deny the materials^3,4.
4. For a new or changed driveway onto a state highway, submit Form 1058 through the local TxDOT district office and wait for the executed permit before entering the right of way¹³.
5. Contact the Jeff Davis County Clerk if you need to record a deed, plat or new legal description⁹.
6. Ask the Tax Assessor-Collector how the parcel is assessed and how improvements may affect the tax bill¹⁰.

Get the septic picture early: only about 11.7% of Jeff Davis County soils lack severe limitations for a conventional drain field, so arrange a site evaluation before assuming a standard system will work⁵. Annual precipitation averages about 14.2 inches, and severe drought occurs in roughly 31.2% of years, so confirm the water source and expected well yield before committing⁵. Jeff Davis County has about 0.8 people per square mile and roughly 1,856 residents, while the nearest city of 100,000 or more is about 134 miles from the county center⁵. A new or modified entrance onto a state highway needs a TxDOT permit, and right-of-way construction cannot begin until the executed permit is received and TxDOT receives 24-hour notice¹³. Land that has been devoted to agricultural use for at least five of the past seven years may qualify for agricultural appraisal, which lowers the tax bill; ask the county appraisal district whether a parcel already holds it, because converting it to non-agricultural use can trigger rollback taxes¹⁴. The effective property-tax rate is about 0.5%, with a median annual bill near $1,283⁵.