Building permits, zoning and land rules in Pecos County, Texas

At a glance

Building permit

Not required anywhere in unincorporated Pecos County⁶

Zoning

None; the county states it has no zoning or permitting regulations⁷²

Septic (OSSF) permit

Required, the county's only permit, issued by Pecos County Health and Sanitation⁴⁸

Owner-builder

Yes: since no county building permit exists, there is no permit to be exempt from⁹¹⁰

RV, tiny home & manufactured home living

Unrestricted under county rules, since the county has no zoning authority¹¹

Minimum lot size, setbacks, dwelling size

None set by the county¹²¹³¹⁴

Water well permit

Required from the Middle Pecos Groundwater Conservation District; a drilling permit runs 120 calendar days⁵

Septic soil difficulty

28.1% of county soils are free of severe limits for a conventional drain field, better than many rural counties¹⁵

Who to call

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

Do you need a building permit in Pecos County, Texas?

No. Unincorporated Pecos County does not require a county building permit for ordinary home construction, and the county says its only required permit is for on-site sewage¹¹⁶. Pecos County also has not adopted county building codes, although state and federal requirements still apply¹⁷. Texas gives counties only limited building-regulation authority, rather than the broad authority cities have¹⁸. Industrialized housing and modular buildings remain subject to the statewide industrialized-housing program's adopted codes¹⁹. An owner may build a home without completing an owner-builder exemption process because there is no county building permit from which to seek an exemption; state trade-licensing rules may still apply to electrical, plumbing, and HVAC work⁹¹⁰. The county has not confirmed whether it conducts any separate building inspection or requires a certificate of occupancy, so direct unusual occupancy questions to the Fire Chief/Emergency Management Coordinator²⁰.

Who handles septic, wells, and other permits in Pecos County?

Pecos County does not list a general building department because the county does not require an ordinary building permit in unincorporated areas¹. On-Site Sewage Facility permits go through Pecos County Health and Sanitation at 103 West Callaghan Street, Fort Stockton, TX 79735, reachable at (432) 290-0299⁸. Regulated water-well drilling and production permits go through the Middle Pecos Groundwater Conservation District at 405 North Spring Drive, Fort Stockton, TX 79735, or (432) 336-0698²¹⁵. A project that cuts across a County Road goes to the commissioner for the parcel's precinct²²²³. Fire-code or occupancy questions go to the Fire Chief/Emergency Management Coordinator²⁰. Inside Fort Stockton, the city has adopted building codes and advises allowing 7–10 business days for permit processing²⁴. Inside Fort Stockton or Iraan city limits, contact the city because the county's unincorporated-area answer does not control⁷.

Does Pecos County have zoning?

No. Pecos County's rules page states directly that there are presently no zoning or permitting regulations within the county². Texas law backs up why: county zoning authority is limited to a short list of specific, named places, such as parts of Padre Island in Cameron or Willacy County, the Amistad Recreation Area, certain military zones, and a few named lakes, none of which include Pecos County²⁵. With no zoning ordinance, Pecos County sets no minimum lot size, no minimum dwelling size, no building setbacks, no lot coverage limit, and no building height limit on unincorporated land^1214132627. That silence extends to zoning-based use restrictions generally: accessory dwellings, RVs, tiny homes, manufactured homes, and temporary camping on your own land are all unrestricted under county rules, because the county simply has no zoning authority to restrict them¹¹. Land inside Fort Stockton or Iraan city limits is a different matter entirely, governed by that city's own rules, not the county's⁷. One county-level rule still applies outside city limits: the County Clerk publishes plat regulations for recording a subdivision plat, so splitting a tract still needs to go through that filing process even though there's no zoning²⁸.

How do septic permits work in Pecos County?

A permit and approved plan are required to construct, alter, repair, extend, or operate an OSSF (septic system) anywhere in unincorporated Pecos County, and that permit goes through Pecos County Health and Sanitation²⁹³. Statewide, the permitting authority must approve or deny a complete application within 30 days of receiving it³. Texas does offer a narrow "10 acre rule" exemption from OSSF permitting, but only if a TCEQ-licensed site evaluator or professional engineer signs off, the tract is at least 10 acres with a single-family dwelling as the only dwelling on it, every part of the system stays at least 100 feet from the property line, and effluent stays on the property³. Emergency repairs on the TCEQ list don't need a permit first, but must be reported to Pecos County Health and Sanitation in writing within 72 hours after the repair begins³. Soils here are more forgiving than many rural counties in this guide series: 28.1% of Pecos County's land is free of severe limitations for a conventional drain field, though that still leaves most of the county needing extra design work, so a site evaluation early is worth it¹⁵. If your land needs a well too, expect a separate process: the Middle Pecos Groundwater Conservation District requires a production permit for any nonexempt well, a drilling permit is valid for 120 calendar days, and a completed production-permit application must be filed no later than 21 calendar days after the well is completed, reworked, or re-equipped⁵.

Can you live in an RV or tiny home on your land in Pecos County?

Unincorporated Pecos County has no zoning ordinance restricting how you occupy your own land, so RV, tiny-home, and manufactured-home living are unrestricted under county rules, and there's no minimum dwelling size or lot size to meet¹¹. That's real freedom compared to a zoned county, but it comes with two caveats worth knowing. First, if your dwelling has plumbing, it still needs a septic permit like any other structure, since the OSSF requirement applies regardless of what kind of structure sits on the tract⁴. Second, Texas state law bans camping in a public place without the consent of whoever manages that place, a Class C misdemeanor; that statute targets public land, not your own private property, but it's worth knowing if you're weighing a stay on county or state land before you close on a parcel³⁰. Inside Fort Stockton or Iraan city limits, none of this county-level freedom applies, and you'd need to check that city's own rules instead⁷.

Building on land in Pecos County: the steps, in order

First, confirm your parcel is outside the city limits of Fort Stockton and Iraan, since none of Pecos County's permit-free rules apply inside either city⁷. Second, if your land needs a well, apply to the Middle Pecos Groundwater Conservation District for a drilling permit before you start, and file your production-permit application within 21 calendar days after the well is completed²¹⁵. Third, get your septic site evaluated and apply for an OSSF permit through Pecos County Health and Sanitation before installing the system, unless your tract qualifies for the state's 10-acre exemption⁸³. Fourth, if your access route crosses a County Road, contact the Commissioner for your precinct before cutting across it²². Fifth, if your driveway will connect to a state highway instead, apply to the local TxDOT district office using Form 1058, keep the driveway to 24 feet wide or less with at least a 15-foot radius to the highway pavement, and give TxDOT 24-hour notice before construction begins³¹³². Finally, build: there is no countywide building-permit review or inspection to schedule for an ordinary structure, though any industrialized or modular home must still meet its own statewide code requirements⁶¹⁹.

What to check before you buy land in Pecos County

Water is the central question here: Pecos County gets only about 13.9 inches of annual precipitation and sees severe drought in 18.8% of years, so a well permit through the Middle Pecos Groundwater Conservation District and a realistic water budget both deserve attention before you buy³³³⁴²¹. Septic soils are comparatively workable, with 28.1% of the county free of severe limitations for a conventional drain field, but confirm with a site evaluation rather than assuming¹⁵. Terrain is mostly gentle, with 70.6% of the county at 15% slope or less, but almost no tree cover, at just 1.1% forested, so shade and windbreaks are a real design consideration, not a given³⁵³⁶. If the tract you're buying was recently split off a larger parcel, confirm it went through the County Clerk's plat-recording process²⁸. Expect real heat exposure too: this county is projected to see about 44.7 days a year at or above 100°F by mid-century³⁷. Budget for carrying costs as well: typical property tax runs about 1% effectively, with a median bill near $1,477 a year against a typical home value around $161,942³⁸³⁹⁴⁰.

Watch-outs

• Pecos County has not confirmed whether it conducts a separate building inspection, requires a certificate of occupancy, or recognizes an agricultural exemption for these topics; ask the Fire Chief/Emergency Management Coordinator about unusual occupancy questions²⁰.
• Inside the city limits of Fort Stockton or Iraan, none of this guide's "no permit, no zoning" rules apply; contact that city directly for its own building and zoning rules⁷.
• Pecos County's general rules page lists a different phone number for Health and Sanitation than the dedicated Health Inspector staff page this guide verified contact details against; try the rules page's listed number too if the one here doesn't connect⁸.

Sources

1. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
2. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
3. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
4. Rules, Regulations, and Guidelines – Pecos County (2026 county census)
5. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
6. Rules, Regulations, and Guidelines – Pecos County (2026 county census)
7. Rules, Regulations, and Guidelines – Pecos County (2026 county census)
8. Pecos County Health and Sanitation (Health Inspector) (co.pecos.tx.us)
9. Rules, Regulations, and Guidelines – Pecos County (2026 county census)
10. Texas law on county zoning and building authority
11. Texas law on county zoning and building authority
12. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
13. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
14. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
15. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
16. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
17. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
18. Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
19. Industrialized Housing and Buildings – Adoption of New Code Editions (Texas statewide rule), quoted and re-checked
20. Pecos County Fire Chief / Emergency Management Coordinator (Fire Code & Occupancy Inquiries) (co.pecos.tx.us)
21. Middle Pecos Groundwater Conservation District (middlepecosgcd.org)
22. Pecos County Commissioners (by Precinct, for County Road crossings) (co.pecos.tx.us)
23. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
24. Code Enforcement – City of Fort Stockton, quoted and re-checked
25. Local Government Code Chapter 231, County Zoning Authority (Texas statewide rule), quoted and re-checked
26. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
27. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
28. County Clerk – Pecos County, quoted and re-checked
29. Rules, Regulations, and Guidelines – Pecos County, quoted and re-checked
30. Texas Penal Code Chapter 48, Section 48.05 — Prohibited Camping, quoted and re-checked
31. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
32. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
33. Annual precipitation: Bolthole Index county data
34. Share of years in severe drought: Bolthole Index county data
35. Share of land at 15% slope or less: Bolthole Index county data
36. Wooded share of land: Bolthole Index county data
37. Projected mid-century days at or above 100°F: Bolthole Index county data
38. Effective property tax rate: Bolthole Index county data
39. Median property tax bill: Bolthole Index county data
40. Typical home value (Zillow): Bolthole Index county data

Written September 28, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.