Unincorporated Runnels County, Texas does not require a residential building permit and has no countywide zoning ordinance1. Inside Winters, city zoning and adopted mechanical and fire codes apply2,3,4. Septic systems generally require a septic permit from the applicable OSSF authority; TCEQ Region 3 handles it only where no local program is authorized5,6.
Do you need a building permit in Runnels County, Texas?
Unincorporated Runnels County does not require a residential building permit.
Unincorporated Runnels County does not require a residential building permit1. The county's official site lists no building or code-enforcement department, and Texas gives counties only very limited, specific zoning power1,11. Municipal rules are different: the City of Winters has adopted the Standard Mechanical Code, 1994 edition, and the Standard Fire Prevention Code, 1991 edition, within its corporate limits3,4. Runnels County does regulate subdivisions outside municipal limits: dividing a tract to create new lots, streets or a manufactured-home rental community sends the plat to the Commissioners Court7. That plat-review process is separate from a building permit7.
Who issues building and septic permits in Runnels County?
Runnels County has no building department because unincorporated land does not need a county residential building permit.
Runnels County has no building department because unincorporated land does not need a county residential building permit1. Inside a city, ask that city's building office about building permits and zoning approval; septic permits remain a separate OSSF process through the applicable state or locally authorized permitting authority5. The County Judge's Office is the general contact for county matters without a dedicated department12. The County Clerk's Office records deeds and approved plats13. Dividing unincorporated land into lots or streets generally requires a subdivision plat, which goes to the Commissioners Court7. TCEQ Region 3 covers Runnels County and is the septic-permit authority only where no local jurisdiction has been authorized; because the county-specific authority could not be confirmed, call Region 3 before submitting septic plans5,6.
Does Runnels County have zoning?
Runnels County has no countywide zoning ordinance.
Runnels County has no countywide zoning ordinance1. Because Runnels County has adopted no county zoning, no county rule sets a minimum home size, minimum lot size or building height, or restricts RVs, tiny homes, manufactured homes and accessory dwellings, on unincorporated land8. City limits change the answer: Winters has a zoning ordinance on file with its city secretary, although the cited source does not reproduce the district rules2. Zoning in Ballinger and Miles remains unconfirmed, so ask the relevant city before relying on the unincorporated-county answer; septic permits remain with the applicable OSSF authority rather than the city's zoning office5. County subdivision rules still apply when unincorporated land is divided into covered lots or streets7. Platted subdivisions outside municipal limits have road setback lines, with municipal extraterritorial-jurisdiction setbacks controlling where they differ7.
How do septic permits work in Runnels County?
A septic permit and approved plan are generally required to construct, alter, repair, extend or operate an OSSF in Runnels County.
A septic permit and approved plan are generally required to construct, alter, repair, extend or operate an OSSF in Runnels County5. Apply to the applicable OSSF authority; TCEQ Region 3 is the authority only where no local jurisdiction has been authorized, and the county-specific authorized agent could not be confirmed5,6. Subdivision lots may use private sewage facilities, but those systems must meet state requirements7. A qualifying single-family home on at least 10 acres may be exempt from the septic permit only if every state condition is met, including a licensed site evaluation and a 100-foot property-line setback for every system component5. An owner may install the home's OSSF only if the permitting authority allows it and the property is not being developed for sale or lease5. Certain treatment systems also carry recurring inspection and reporting duties14. Only 30.7% of county soils avoid severe limits for a conventional drain field15.
Can you live in an RV or tiny home on your land in Runnels County?
Runnels County has adopted no county zoning, so no county zoning rule restricts living in an RV, tiny home or manufactured home on your own land in unincorporated Runnels County.
Runnels County has adopted no county zoning, so no county zoning rule restricts living in an RV, tiny home or manufactured home on your own land in unincorporated Runnels County8. That answer does not extend into Winters, where city zoning and adopted mechanical and fire codes apply; ask the city secretary for the district rules before placing a dwelling there2,3,4. Off-grid sanitation remains limited by Texas OSSF rules: septic systems and holding tanks generally need permits, and the acreage exemption applies only when every state condition is satisfied5. We could not confirm a Runnels County short-term-rental ordinance, registration rule or fee, so ask the County Judge's Office before listing a rural property12. A manufactured-home rental community triggers the county's infrastructure development-plan process through the Commissioners Court, unlike a single home on its own tract7.
Building a home in Runnels County: the steps, in order
Confirm whether the tract is unincorporated, inside city limits or subject to municipal extraterritorial-jurisdiction setbacks; Winters has city zoning plus adopted mechanical and fire codes.
- Confirm whether the tract is unincorporated, inside city limits or subject to municipal extraterritorial-jurisdiction setbacks; Winters has city zoning plus adopted mechanical and fire codes2,3,4,7.
- Order a soils evaluation before closing because only 30.7% of Runnels County soils avoid severe limits for a conventional drain field15.
- Call TCEQ Region 3 to identify the applicable OSSF authority, then submit the septic permit application and plan there; Region 3 issues the permit only where no local program is authorized5,6.
- Ask whether a tract of at least 10 acres meets every condition for the septic-permit exemption, including keeping all OSSF parts at least 100 feet from property lines5.
- Check whether the parcel is in the Lipan-Kickapoo Water Conservation District; Texas has no statewide private-well registration, but district rules may require well registration or a well permit9,16.
- When dividing unincorporated land into covered lots or streets, submit a plat to the Commissioners Court; a subdivision in a regulated floodplain must show compliance and obtain the required floodplain-management certificate before plat approval7.
- Record the deed or approved plat with the County Clerk's Office13.
What to check before you buy land in Runnels County
Texas has no statewide private-well registration requirement, but a registered driller or a landowner drilling a well must submit a State of Texas Water Well Report.
Texas has no statewide private-well registration requirement, but a registered driller or a landowner drilling a well must submit a State of Texas Water Well Report9. The Lipan-Kickapoo Water Conservation District covers parts of Runnels County, where all wells must be registered and new non-exempt wells require well permits16. A domestic or livestock well in that district can be exempt only on a tract larger than 10 acres when it cannot produce more than 25,000 gallons per day and meets the other statutory conditions10. Runnels County has spent 20.7% of recent years in severe drought and averages 24.6 inches of annual precipitation15. A subdivision subject to county floodplain rules needs proof of compliance before plat approval, but we could not confirm the floodplain-administrator contact; ask the County Judge's Office7,12. Property taxes run an effective 1.5% rate with a median annual bill of $1,51815.
Watch-outs
- The unincorporated-county answer does not apply inside Winters: the city has zoning and has adopted the Standard Mechanical Code, 1994 edition, and Standard Fire Prevention Code, 1991 edition2,3,4.
- Runnels County's subdivision regulations mention an 'office of flood plain management' but no floodplain-administrator contact is confirmed on the county's official site; ask the County Judge's Office before building near a creek or low-lying draw7,12.
- We could not confirm short-term-rental rules for Runnels County; ask the County Judge's Office before listing a property12.
- We could not confirm building-inspection or certificate-of-occupancy rules beyond the subdivision plat process; ask the County Judge's Office whether the state's limited county fire-code authority could apply to your project12.
Sources
16 official pages, each quoted and re-checked · written October 9, 2026
- Runnels County official website (2026 county census)
- Chapter 14: Zoning - City of Winters, TX
- Division 5: Mechanical Code - City of Winters, TX
- Article 5.03: Fire Code - City of Winters, TX
- Getting a Permit for an OSSF - Such as a Septic System
- TCEQ Region 3 Office (Abilene) (tceq.texas.gov)
- Runnels County Commissioners Court (Subdivision Platting) (runnelscounty.org)
- Texas law on county zoning and building authority
- General Groundwater and Private Water Well FAQ
- Water Code Chapter 36: Groundwater Conservation Districts
- Morales Letter Opinion No. 97-085 (Texas statewide rule)
- Runnels County Judge's Office (runnelscounty.org)
- Runnels County Clerk's Office (runnelscounty.org)
- Maintenance of On-Site Sewage Facilities (Septic Systems)
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Activities - Lipan-Kickapoo Water Conservation District
Written October 9, 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.
Off-grid gear
Going off-grid in Runnels County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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