Building permits, zoning and land rules in El Paso County, Texas

El Paso County does not issue county building permits in unincorporated areas, but covered residential construction still requires notice and inspection⁸. El Paso County's partial residential building-code program covers new single-family homes, duplexes, and additions that increase a home's square footage or value by more than 50%². A builder, contractor, or owner must file a Commencement of Residential Construction notice before work begins⁸. Third-party inspections are required before foundation concrete, before framing and mechanical systems are covered, and at completion; El Paso County does not perform those inspections⁸. El Paso County also does not issue certificates of occupancy, although an Emergency Service District or municipality may require one⁶. Because the county issues no building permit, an owner may build their own home without a permit exemption, though state licensing for electrical, plumbing and air-conditioning work can still apply³. Inspections follow the International Residential Code with the City of El Paso amendments, unless another municipality has adopted a different code¹.

El Paso County does not issue building permits; it directs people in unincorporated areas to Emergency Service District #1 or #2 for building-permit guidance³. For the county's residential construction registration, contact Public Works at (915) 546-2015; the Commencement of Residential Construction form is available at 800 E. Overland St, Suite 407¹. El Paso County Planning and Development separately handles county septic, driveway, road-cut, floodplain, and plat-compliance permits in unincorporated areas; reach it at 915-273-3330 or 800 E Overland Suite 200, El Paso, TX 79901^3,9. Inside the City of El Paso, the city issues building permits; El Paso County’s septic authority described here covers unincorporated land, so confirm the septic authority separately for a city address^5,10. New driveway permits, road-cut permits and certificates of compliance are listed for Accela submission, while another county instruction sends other plans and permits through goPost; ask Planning and Development which portal to use for your application³.

El Paso County does not administer countywide zoning, but its FAQ identifies exceptions near Fabens Airport and the Historic Mission Trail; ask Planning and Development to confirm the boundaries and applicable standards before relying on the general absence of zoning^3,6,9. Unincorporated El Paso County has no general county zoning limits on minimum dwelling size, minimum lot size, building setbacks, lot coverage or building height; confirm special-area requirements separately^3,6. Inside the City of El Paso and the Town of Anthony, each municipality sets zoning^11,12. Anthony septic construction still needs authorization under the applicable county/state OSSF program, so confirm the permitting authority separately^12,13. Outside incorporated limits, residential subdivisions creating 2 or more lots of 5 acres or less require preliminary and final plat approval before recording¹⁴.

El Paso County Planning and Development issues OSSF septic permits in unincorporated El Paso County; incorporated municipalities may have separate septic requirements and authorities⁵. Before building, verify whether public sewer is available; if it is not, a septic system is required⁶. A septic permit and approved plan are generally required to construct, install, alter, extend, repair, or operate an OSSF¹³. A possible exemption applies on tracts of at least 10 acres only when every condition is met, including a qualifying site evaluation, a single-family dwelling that is the only dwelling on the tract, all system parts at least 100 feet from a property line, on-site effluent disposal, and no nuisance or groundwater pollution¹³. Only 34.1% of county soils are rated without severe limitations for a conventional drain field, so make the site evaluation part of due diligence⁷. For a private well, El Paso County requires a certified-laboratory test as the potable-water alternative to metered service, but we could not confirm a countywide well permit; ask Planning and Development^6,9.

Unincorporated El Paso County has no general zoning-based minimum dwelling size, but special-area requirements near Fabens Airport or the Historic Mission Trail need confirmation^3,6. We could not confirm private-land RV, temporary-camping or tiny-home occupancy rules; ask Planning and Development before buying for those uses⁹. A residence still needs potable water and public sewer or a permitted septic system, and covered residential construction requires registration and third-party inspections^6,8,13. A TCEQ-approved composting toilet does not eliminate wastewater disposal requirements: an approved OSSF is required for all other wastewater, and product approval alone does not approve a particular site or installation¹⁵. The published RV and camping prohibition concerns county-owned property after regular business hours, with written county authorization as an exception; that rule does not establish whether private-land occupancy is allowed¹⁶.

1. Confirm whether the parcel is unincorporated; county development guidance excludes municipal property, and municipal septic authority must be checked separately^3,5.
2. Ask Planning and Development for a floodplain determination; development in a county-adopted special flood hazard area requires a Floodplain Development Permit and documentation from a Texas-licensed engineer or surveyor⁶.
3. Verify potable water and sewer, and obtain required septic approval; onsite sewage and ponding requirements must be met before covered construction unless Public Works gives written authorization^6,8,13.
4. File the Commencement of Residential Construction notice with Public Works and arrange qualified third-party inspections for covered homes and additions^1,8.
5. Obtain a driveway permit before installation or modification within a public right-of-way in unincorporated El Paso County; conflicting municipal extraterritorial-jurisdiction design standards are resolved by the more stringent standard¹⁷. County driveway fees follow the current right-of-way rules, while road-cut fees depend on surface and cut^18,19. State-highway access requires a separate TxDOT application²⁰.

Water is the first question in this part of Texas: El Paso County gets only about 9.5 inches of rain a year, with severe drought in nearly 20% of years, so confirm your water source and its reliability before you commit⁷. Check whether an unincorporated parcel is in a county-adopted special flood hazard area and whether it lies near Fabens Airport or the Historic Mission Trail^4,6. Confirm legal driveway access and the applicable county-road or state-highway permit before closing^20,21. For a smaller tract, confirm any prior split went through plat approval because residential subdivisions of five acres or less are regulated¹⁴.