Bolthole Index

Travis County, Texas

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

40Index Score / 100
#212 of 254 in Texas

Unincorporated Travis County, Texas has no zoning ordinance, so the county sets no minimum lot size, setback or use restriction on a parcel12. It does require a development permit before you build a new single-family house, duplex or manufactured home outside city limits, through the Development Services department3. Septic goes through the same office: Travis County is the Texas Commission on Environmental Quality's authorized agent for on-site sewage facility permits4. Expect real limits from floodplain rules and septic-limited soils rather than from zoning.

At a glance

Building permit
A development permit is required for new single-family, duplex or manufactured-home construction outside city limits; not a full municipal building-code review3
Zoning
None; land is regulated through development, floodplain and subdivision permits instead12
Septic permit
Required; Travis County is TCEQ's authorized agent for on-site sewage facilities4
Minimum lot size / setbacks
None set countywide; there's no zoning ordinance to set them2
RV, tiny home or manufactured home
No zoning-based restriction on occupancy, though the development and septic permit process still applies2
Owner-builder exemption
Unconfirmed; the county's own site doesn't state one5
Septic-favorable soils
Only about 4.2% of the county's land is rated free of severe limits for a conventional drain field6
Property tax
About 1.5% effective rate; median bill around $7,487/year78

Who to call

Building permits

Travis County Development Services

Issues the development permit required to build a new single-family house, duplex or manufactured home outside Travis County's city limits, and administers floodplain, driveway and subdivision permits for the same unincorporated and ETJ areas

(512) 854-4215

700 Lavaca, Suite 540, Austin, TX 78701

Online permits →

Septic permits

Travis County Development Services - On-Site Sewage Facility (OSSF) Program

Reviews plans, issues permits, and schedules and performs inspections for on-site sewage facilities (septic systems) in unincorporated Travis County, as TCEQ's authorized agent

512-854-4438

700 Lavaca, Suite 540, Austin, TX 78701

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 24, 2026.

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

Unincorporated Travis County, Texas does not run a conventional municipal building-permit program, but it does require a development permit before you build a new single-family house, duplex or manufactured home outside the county's city limits3. Development Services, the county office that issues this permit, describes it as covering a new construction of a single-family house, a duplex, or a mother-in-law suite/habitable structure9. Your application has to include a statement of which International Residential Code year your plans follow, since Texas counties don't adopt or enforce a full residential building code the way a city does93. Texas law generally limits county building authority to narrow situations, such as fire codes in larger counties, rather than giving every county the broad building-code power a city has10.

Who is the Travis County building department, and how do you reach them?

Development Services is the Travis County office that issues building-related development permits for unincorporated county land outside city limits, and it's reached at (512) 854-42159. Its office is at 700 Lavaca, Suite 540, Austin, Texas, with permit desk hours Monday through Thursday; mail goes to P.O. Box 1748, Attn: Permits, Austin, TX 787019. Applications, plan submittal and status tracking all run through the county's online permitting platform rather than a paper counter9. On-site sewage (septic) permits go through the same department but a different team, reachable at 512-854-4438 for inspection scheduling11.

Does Travis County have zoning?

Travis County has no zoning ordinance, because Texas law gives general zoning power only to cities, not counties, and Travis County doesn't fall into any of the state's narrow special-area exceptions to that rule112. Without a zoning ordinance, the county sets no minimum lot size, no setback rule, no lot-coverage limit and no building-height limit anywhere in unincorporated Travis County2. That also means the county places no zoning-based restriction on an accessory dwelling, an RV, a tiny home or a manufactured home used as a residence2. None of this removes Development Services' own tools, though: the department is still responsible for floodplain management, construction inspections, and regulating subdivisions in unincorporated areas and extraterritorial jurisdictions9.

How do septic permits work in Travis County?

Travis County is the Texas Commission on Environmental Quality's authorized agent for on-site sewage facility (OSSF) permits, so septic applications go through the county's Development Services department across most of the unincorporated county rather than the state directly, though LCRA holds that authority within 1,000 ft of Lake Travis4. Statewide, Texas law requires a permit before you construct, install, alter, extend or repair an OSSF, with a narrow exemption for a single-family home on at least 10 acres that meets a list of conditions, including keeping every part of the system at least 100 feet from the property line13. An authorized agent like Travis County, or its designated representative, reviews plans, issues the permit and inspects installation, and inspection requests here have to be filed before 2pm the previous working day1411. Soils are a real constraint countywide: only about 4.2% of Travis County's land is rated free of severe limits for a conventional septic drain field, so budget for a site evaluation and likely an engineered system on most tracts6.

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

Travis County places no zoning-based restriction on RV occupancy, tiny-home occupancy or manufactured-home occupancy on private land, because the county has no zoning ordinance to set one21. That's a direct result of state law: Texas gives counties zoning power only in specific situations, such as parts of Padre Island in Cameron or Willacy County, and Travis County doesn't fall into any of them12. Removing a zoning restriction doesn't remove Development Services' other permits: a new manufactured or tiny home built as a habitable structure still needs the same development permit a stick-built house needs, plus a septic permit if it isn't on sewer93. If your land sits in a floodplain, expect additional requirements no matter what kind of structure you place there, including a lowest-floor elevation and, for finished construction, an elevation certificate within 30 days of completion9.

Building a home in Travis County: the steps, in order

  1. Confirm your property is outside city limits and identify its extraterritorial jurisdiction using the county's jurisdiction web map before you apply for anything9.
  2. Gather your legal description, lot and property ID from the Travis Central Appraisal District, your estimated construction cost, and a statement of your plans' International Residential Code year, then apply for your development permit through the county's online platform93.
  3. If your home isn't on sewer, apply for your on-site sewage facility permit at the same time, and budget for a site evaluation given how little of the county's soil is rated free of severe septic limits116.
  4. If a professional builder does the work, schedule the required minimum of 3 inspections, at foundation, framing/mechanical, and completion; manufactured homes are not subject to this inspection requirement9.
  5. If any part of your land is in a floodplain, prepare the additional site plan and elevation documentation Development Services requires, including a post-construction elevation certificate within 30 days9.
  6. If your driveway will connect to a state highway, submit TxDOT's Form 1058 and get a fully executed driveway permit, giving TxDOT 24-hour notice, before starting construction15.
  7. Budget for property tax: Travis County runs about a 1.5% effective rate, with a median bill near $7,487 a year78.

What to check before you buy land in Travis County, Texas

Travis County isn't remote: population density runs about 1,342.9 people per square mile across roughly 1,334,961 residents, and the county sits inside its own metro area rather than a drive away from one161718. Terrain is mostly buildable but not flat everywhere: about 91.2% of the county sits at 15% slope or less, and about 49.3% is wooded1920. Water is a real planning question here: the county averages about 35.5 inches of rain a year, with severe drought in roughly 24.3% of recent years, and only about 4.2% of the land is rated free of severe limits for a conventional septic drain field21226. Federal land is minimal, at about 2.6% of the county, so land-use limits are far more likely to come from a floodplain map, an ETJ boundary, or a subdivision plat than from federal ownership23. Farmland has recently valued around $7,127 an acre and a typical home around $476,400, against a roughly 1.5% effective property tax rate and a median bill near $7,487 a year242578.

Watch-outs

  • Travis County has no zoning ordinance, so don't assume a setback, minimum lot size or use restriction exists on a parcel; the county's real land-use tools are its development, floodplain and subdivision permits12.
  • If any part of a parcel sits in a floodplain, expect extra documentation, including a lowest-floor elevation and a post-construction elevation certificate, no matter what kind of home you place there9.
  • Whether Travis County recognizes an owner-builder exemption from contractor licensing is not something the county's own site confirms; ask Development Services directly before assuming one applies5.

Sources

  1. City and County Powers (2026 county census)
  2. Texas law on county zoning and building authority
  3. Construction Issues (2026 county census)
  4. Travis County - Residential OSSF (Septic System) Permit (2026 county census)
  5. (2026 county census)
  6. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  7. Effective property tax rate: Bolthole Index county data
  8. Median property tax bill: Bolthole Index county data
  9. Travis County Development Services (traviscountytx.gov)
  10. Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
  11. Travis County Development Services - On-Site Sewage Facility (OSSF) Program (traviscountytx.gov)
  12. Local Government Code Chapter 231, County Zoning Authority (Texas statewide rule), quoted and re-checked
  13. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  14. Basics for Septic Systems (Texas statewide rule), quoted and re-checked
  15. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  16. Population density: Bolthole Index county data
  17. County population: Bolthole Index county data
  18. Distance to the nearest metro area: Bolthole Index county data
  19. Share of land at 15% slope or less: Bolthole Index county data
  20. Wooded share of land: Bolthole Index county data
  21. Annual precipitation: Bolthole Index county data
  22. Share of years in severe drought: Bolthole Index county data
  23. Federal land share: Bolthole Index county data
  24. Farmland value per acre (USDA census): Bolthole Index county data
  25. Typical home value (Zillow): Bolthole Index county data

Written September 24, 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.

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County locator

Travis County in Texas

40
County map
Travis County highlighted among the Texas counties · colored by Index score

How Travis County scores

Seclusion12100% ev.
Self-Sufficiency44100% ev.
Admin Boringness7490% ev.
Durability59100% ev.
Property Autonomy71100% ev.
Carry Cost59100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$476kTypical home
1.5%Property tax
$7,127Land / acre
35.5"Annual rain
24.3% of yrsSevere drought
39.9 / yr (+28.4)Mid-century 100°F days
28.3 daysMid-century dry spell
2.19" (+4.2%)Mid-century 1-day rain
1.42×Wildfire change factor
100%Forward climate coverage
$1,956Home insurance / yr
3.2% / yrInsurance growth
0%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
989,164People within 30 min
6,788,688People within 2 hr
1,012,857Radius comparison (15 mi)
1,342.9People / sq mi
2.6%Federal land
91.2%Land at 15% slope or less
4.2%Septic soil without severe limits
24,633 acWorkable land screen
49.3%Wooded land
16.6 tonsBiomass / forest ac
68.1°FAvg temp

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Answers from the rulebook for Travis County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Travis County rules

  • Building permitRequired

    Construction or subdivision of land in unincorporated Travis County, through the county development-permit system.

    • Other permits may also apply.
    • The cited requirement is a county development permit, not a municipal-style building permit.
    “If you are constructing or subdividing land in unincorporated Travis County, a development permit from the TNR Development Permit Center is required, as well as other permits that may be applicable.”
  • Building code adoptedPartial

    New and substantially improved one- and two-family dwellings constructed by professional home builders or remodelers.

    • The IRC version must be indicated on the permit application.
    • The cited county webpage is a compilation and warns that the official Commissioners Court record controls in case of conflict.

    code: International Residential Code (Professional home builder or remodeler; one- and two-family dwellings)

    “All new and substantial improved one and two family dwellings constructed by a professional home builder or re modeler must comply with Chapter 80 of the Travis County Code by indicating the version of International Residential Code (IRC) that is to be utilized during construction on the permit application.”
  • InspectionsLimited

    New and substantially improved one- and two-family dwellings built by professional builders or remodelers.

    • Three reports are required: foundation, framing/mechanical, and final.
    • For permit applications after March 4, 2013, reports can be uploaded to MyPermitNow.org; earlier applications use email submission.

    inspection reports: 3 reports (Foundation, framing/mechanical, and final)

    “In addition, professional builders or re modelers must submit three inspection reports (foundation, framing/mechanical, and final) upon completion of the project.”
  • County-wide zoningAbsent

    County zoning authority in unincorporated Travis County.

    • Incorporated municipalities may exercise zoning authority and may impose separate rules.
    • The county page also states that Travis County is not allowed to regulate building or property use, building height, size, number, or residential units per acre.
    “Most counties, including Travis County, do not have zoning authority.”
  • Local zoningVaries (with conditions)

    Aggregate of incorporated municipal zoning and unincorporated county land-use rules across Travis County.

    • Cities have zoning authority.
    • Rules differ between city limits and areas outside city limits.
    • This aggregate claim does not attribute municipal ordinances to Travis County.
    “Cities have zoning authority, so they can regulate, for example:”
  • Zoning districts · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Minimum dwelling size · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Minimum lot size · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Setbacks · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Lot coverage · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Building height · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Living in an RV · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Camping on your land · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Tiny homes · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Manufactured homes · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Accessory dwellings · by state lawNo county rule

    Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • Subdividing landRegulated (with conditions)

    Residential and non-residential subdivision proposals in unincorporated Travis County.

    • Subdivision proposals require county approval.
    • Water, wastewater, stormwater, environmental, and applicable municipal or state requirements may also apply.
    “Proposals to subdivide land for residential or non-residential purposes and plans to construct a subdivision also require Travis County approval.”
  • Driveway accessRequired

    New or improved driveway access onto a Travis County roadway.

    • A traffic-impact determination worksheet is required.
    • A Travis County Driveway in Right of Way Permit application must be submitted and approved before issuance of a county development permit.
    “If yes, a Traffic Impact Analysis Determination Worksheet is required, and a Travis County Driveway in Right of Way Permit application must be submitted and approved prior to issuance of a County development permit.”
  • Permit processPublished (with conditions)

    County development-permit applications submitted through MyPermitNow and related online permitting systems.

    • Applicants create an account, upload application materials and fees, receive comments through the portal, respond to deficiencies, and obtain approval before beginning work.
    • Separate OSSF and driveway applications may be required.
    “An application for permit must be submitted on-line through the MyPermitNow portal. The applicant is required to create a Customer Account. All information, application fee, and details regarding your development proposal must be uploaded on line through the portal.”

Texas rules that apply here

  • Who permits septicMixed

    On-site sewage facilities, including septic systems, throughout Texas

    • In most areas, local governments act as TCEQ-authorized agents and administer the OSSF program.
    • The TCEQ regional office is the permitting authority where a local jurisdiction has not been authorized.
    • Local permitting programs may be more stringent than state minimums.
    “TCEQ is not often the OSSF permitting authority. [...] The TCEQ regional office will be the permitting authority in locations where a local jurisdiction has not been authorized.”
  • Septic permitRequired

    Construction, installation, alteration, extension, or repair of an OSSF in Texas

    • A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.
    • A 10-acre exemption may apply only if all listed conditions are met: site evaluation by a TCEQ-licensed site evaluator or professional engineer; single-family dwelling on at least 10 acres; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; effluent disposed of on the property; and the single-family dwelling is the only dwelling on the tract.
    • Emergency repairs listed by TCEQ do not require a permit but must be reported in writing to the permitting authority within 72 hours after repairs begin.
    • Grandfathered systems may also be exempt if the stated conditions are met.

    minimum tract size for 10-acre exemption: >= 10 acres (single-family dwelling and all other TCEQ conditions must be met) · minimum OSSF distance from property line for 10-acre exemption: >= 100 feet (all parts of the OSSF) · emergency repair reporting deadline: <= 72 hours (after repairs have begun; written report to permitting authority)

    “A permit is required to construct, install, alter, extend, or repair an OSSF. [...] An OSSF may be exempt from permitting if it complies with all other requirements, including planning, construction, and installation standards of 30 TAC 285 AND meets the “10 acre rule”:”
  • Septic inspectionLimited

    OSSF installation and, where applicable, maintenance inspections in Texas

    • Authorized agents or their designated representatives inspect system installation.
    • Some permitting authorities impose more stringent requirements.
    • Maintenance-provider inspection and reporting requirements apply to systems and circumstances governed by 30 TAC §285.91(4).
    • Electronic monitoring may reduce reporting to every six months where the stated monitoring conditions apply.

    reduced maintenance reporting interval with qualifying electronic monitoring: 6 months (only where the system uses the specified electronic monitoring, automatic notification, and disinfection monitoring)

    “Many times, the AA has a "designated representative" (DR) to assist them with their responsibilities, which include reviewing plans for constructing, altering, extending or repairing each OSSF; issuing permits; and inspecting system installation. [...] If the system uses an electronic monitor, automatic radio or telephone to notify the maintenance provider of system or component failure and to monitor the amount of disinfection in the system, reporting may be reduced to every six months.”
  • county zoning authorityLimited

    Texas counties adopting zoning regulations for specified unincorporated or otherwise specially defined areas.

    • Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
    • For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
    • Other Chapter 231 subchapters address special areas including the Amistad Recreation Area in Val Verde County, military zones, certain lakes, the El Paso Mission Trail Historical Area, Lake Somerville, and Falcon Lake in Zapata County.
    • The cited statute was enacted effective September 1, 1987; the Falcon Lake subchapter was added effective June 15, 2007, and amended effective September 1, 2009.

    Padre Island distance from publicly owned park or recreational development: <= 2 miles (Area must be outside a municipality and in Cameron or Willacy County.) · Padre Island distance from beach, wharf, or bathhouse: <= 2 miles (The beach, wharf, or bathhouse must be used by at least 500 persons annually.)

    “This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
  • county building authorityLimited

    Texas counties adopting and enforcing fire-code building permits for specified buildings in unincorporated areas and applying residential building-code standards in certain counties.

    • Under Section 233.061, the county must have a population over 250,000 or be adjacent to a county with a population over 250,000.
    • Under Section 233.062, the fire code applies only to commercial establishments, public buildings, and multifamily residential dwellings consisting of four or more units constructed in an unincorporated area.
    • The fire code does not apply to an industrial facility having a fire brigade that conforms to Occupational Health and Safety Administration requirements.
    • A covered applicant must submit a plan and a commissioners-court-set application fee; the county must issue or deny the permit within 30 days, and failure to act within 30 days approves the construction for purposes of the subchapter.
    • The fire code must conform to the International Fire Code or Uniform Fire Code as those codes existed on May 1, 2005, or establish protective measures exceeding those standards; later editions may be adopted.
    • Residential standards under Section 233.152 apply only if the county adopts a resolution or order and the county is within 50 miles of an international border or has a population over 100.
    • Those residential standards apply only to new single-family-house or duplex construction beginning after September 1, 2009; manufactured or modular structures governed by Occupations Code Chapters 1201 or 1202 are excluded from the definition of new residential construction.
    • A municipality's building code controls in its extraterritorial jurisdiction, and Section 233.152 does not authorize county prior approval of new residential construction or county zoning regulations.
    • Fire-code inspection and permit fees may be charged under a fee schedule based on building type, limited to amounts necessary to administer and enforce the subchapter; inspection fees must be reasonable and reflect approximate inspection costs.

    county population threshold for fire-code authority: > 250000 persons (A county adjacent to a county over 250,000 also qualifies.) · multifamily residential dwelling threshold: >= 4 units (The fire code applies only to covered buildings constructed in an unincorporated area.) · residential-code border distance: <= 50 miles (Alternative qualification is county population over 100.) · application decision period: 30 days (If the commissioners court does not issue or deny the permit within 30 days after receiving the application and fee, construction is approved for purposes of the subchapter.) · residential standards effective construction date: > 2009-09-01 (Applies only to new residential construction that begins after September 1, 2009.)

    “The commissioners court of a county with a population of over 250,000 or a county adjacent to a county with a population of over 250,000 may adopt a fire code and rules necessary to administer and enforce the fire code. [...] The fire code applies only to the following buildings constructed in an unincorporated area of the county: (1) a commercial establishment; (2) a public building; and (3) a multifamily residential dwelling consisting of four or more units.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Owner-builder exemption — Potential owner-builder exemption from Travis County residential construction standards.
  • Certificate of occupancy — Certificate-of-occupancy requirements for Travis County property.
  • Off-grid sanitation — Off-grid sanitation arrangements in Travis County.
  • Agricultural exemption — Potential exemptions for agricultural development or land-clearing activity.
  • Short-term rentals — Short-term rental use in Travis County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Travis County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Texas’s water agency.

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

Household wellExempt up to a limit

Texas groundwater is governed by the rule of capture; a Groundwater Conservation District must exempt qualifying domestic/livestock wells and may not restrict their production, but well registration and spacing rules can still apply and the exemption does not cover wells serving a platted subdivision.

Limit: Domestic/livestock well exempt from GCD production permitting if on a tract >10 acres AND incapable of producing >25,000 gal/day (Tex. Water Code §36.117)

Texas Water Code §36.117 / TWDB ↗
  • Hill Country Priority Groundwater Management Areapartial of county

    TCEQ PGMA identifying existing or anticipated critical groundwater problems; drives GCD coverage and heightened management. Domestic/livestock wells remain exempt from GCD permits but spacing/registration may apply.

    TCEQ — Priority Groundwater Management Areas ↗

Hybrid state (appropriation + riparian). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Texas state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Travis County, Texas

Is Travis County a good place to live off-grid or homestead?

Travis County scores 40/100 on the Bolthole Index, a marginal county profile. Its strengths: low administrative friction for a quiet rural property and a stronger property-autonomy legal backdrop. Watch-outs: about 989,164 people within a 30-minute drive.

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

Travis County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Travis County TNR / Development Services (TCEQ Authorized Agent for OSSF). These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

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

Living in an RV on your own land in Travis County is allowed: Unincorporated Travis County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Travis County has no zoning ordinance. Travis County's own reviewed answer confirms it has no county-wide zoning. Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits. Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Travis County, Texas?

Land in Travis County runs about $7,127 per acre, based on the latest county data.

What is the water situation in Travis County?

Travis County gets about 35.5" of rain a year, with severe drought in roughly 24.3% of years. On water rights, Travis County lies in the Hill Country Priority Groundwater Management Area — TCEQ PGMA identifying existing or anticipated critical groundwater problems; drives GCD coverage and heightened management. Domestic/livestock wells remain exempt from GCD permits but spacing/registration may apply..

How remote is Travis County?

A representative private-land location has about 989,164 people within a 30-minute drive and 6,788,688 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Travis County means bringing your own water and power. The kit we’d start with:

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How Travis compares in Texas

Compare side-by-side →See all 254 Texas counties ranked →