Houston County, TX Building Permits, Zoning & Septic Rules

Unincorporated Houston County, Texas has no building permit requirement and no countywide zoning, because Texas law gives counties neither power outside a short list of exceptions Houston County doesn't meet¹². That means no county rule restricts minimum lot size, setbacks, or living in an RV, tiny home or manufactured home on your own land³. Septic systems are the one thing regulated everywhere: Houston County itself is TCEQ's authorized agent for unincorporated Houston County and the City of Crockett, and administers its own on-site sewage facility permit program⁴.

At a glance

Building permit: Not required in unincorporated Houston County¹
Zoning: No countywide zoning; Texas gives counties no general zoning power²⁵
Septic permit: Issued by Houston County's own OSSF office, TCEQ's authorized agent for the county⁴⁶
RV, tiny home & manufactured home living: Unrestricted by county rule, since Houston County has no zoning authority³
Minimum lot size, setbacks & dwelling size: None set by the county³
Septic soil suitability: Only 5.3% of soils have no severe limitation for a conventional drain field⁷
Driveway onto a state highway: Needs a TxDOT Form 1058 permit before any work starts⁸⁹

Who to call

Septic permits

Houston County OSSF Authorized Agent

TCEQ-authorized OSSF (septic) permitting agent for unincorporated Houston County and the City of Crockett

(936) 544-7608

[email protected]

1212 E Houston Ave, Crockett, TX 75835

Also useful

Houston County Judge

Chief executive of county government and head of emergency management; the office to start with for any land-use question, since Houston County has no building, planning or zoning department

936-544-3255, ext. 221

401 East Goliad Avenue, Suite 201, Crockett, TX 75835

Roads & driveways

Houston County Commissioners Court (Road Precincts)

County roads are maintained by four numbered precincts, each with its own commissioner; call the courthouse number and ask for your precinct's road department

936-544-3255

401 East Goliad Avenue, Suite 202, Crockett, TX 75835

Also useful

Houston County Office of Emergency Management / Fire Marshal

Coordinates disaster response and investigates fires in Houston County and the cities of Crockett, Grapeland, Kennard, Latexo and Lovelady; no county floodplain administrator was identified on the county's site, so this office is the closest confirmed contact for a flood or burn-permit question

936-544-3255

401 East Houston Avenue, Crockett, TX 75835

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 Houston County, Texas?

No general building permit is required to build a home on unincorporated land in Houston County; Texas law gives counties no authority to require one outside a few narrow exceptions¹. Those exceptions reach only counties with more than 250,000 people, or a county next to one, which may adopt a fire code covering commercial buildings, public buildings and multifamily buildings of four units or more in unincorporated areas, or an optional residential construction standard; no official Houston County resolution or order adopting either was found¹⁰. Factory-built housing is different: the Texas Industrialized Housing and Buildings program sets mandatory statewide codes for manufactured and modular structures, requiring the 2021-edition International codes as of July 1, 2024, regardless of county¹¹. No official source confirms an owner-builder exemption specific to Houston County, because there's no general county building permit for one to exempt you from¹².

Who handles zoning and land use in Houston County?

Houston County enforces no countywide zoning; Texas law grants general zoning power only to a short, specific list of counties and areas, such as parts of Padre Island in Cameron or Willacy County, and Houston County is not one of them²⁵. Because the county has no zoning authority, it sets no minimum lot size, no setback, no lot-coverage limit, no building-height limit and no zoning district for unincorporated land³. With no building or planning department, the Houston County Judge's office is the place to start with a land-use question¹³. Zoning rules can still exist inside the cities of Crockett, Grapeland, Kennard, Latexo or Lovelady, so confirm directly with a city if your parcel sits near one.

How do septic permits work in Houston County?

Every on-site sewage facility (OSSF) in Houston County needs a permit before construction, and Houston County itself is TCEQ's authorized agent that issues those permits for unincorporated Houston County and the City of Crockett¹⁴⁶. The permitting authority has 30 days from a complete application to approve or deny it¹⁵. Once installed, the installer must give at least five working days' notice before the system is ready for a construction inspection, and the system can't be used until it passes¹⁶. A single-family home on a tract of 10 acres or larger can skip both the permit and the inspection if a licensed site evaluator confirms the system won't cause a nuisance or pollute groundwater, every part of it sits at least 100 feet from the property line, effluent stays on the property, and the home is the only dwelling on the tract¹⁷. That 10-acre exception matters in practice here: only about 5.3% of Houston County's soils carry no severe limitation for a conventional septic drain field, so most smaller parcels will need real site evaluation and likely an engineered or alternative system¹⁷⁷. Boreholes, cesspools and seepage pits are prohibited outright anywhere in the county¹⁸.

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

Yes: because Houston County has no zoning authority, RV, tiny-home and manufactured-home occupancy on your own private land is unrestricted by any county rule, and the county sets no minimum dwelling size either³. Temporary camping on your own land is likewise unrestricted by county rule³. That freedom comes from the limits of state law, not from a county ordinance actively welcoming it, so plan for septic the moment your RV, tiny home or manufactured home has plumbing; Houston County's OSSF permit rules still apply¹⁴. None of this reaches inside the cities of Crockett, Grapeland, Kennard, Latexo or Lovelady, which may set their own rules within city limits.

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

Confirm the parcel sits outside the city limits of Crockett, Grapeland, Kennard, Latexo or Lovelady; unincorporated land needs no building permit, while a city may require one¹.
Before you buy, get a site evaluation for septic; only about 5.3% of the county's soils carry no severe limitation for a conventional system, and a 10-acre-or-larger tract can qualify for TCEQ's no-permit exception if it meets every condition⁷¹⁷.
Apply for your OSSF permit through Houston County's own OSSF office at 1212 E Houston Ave in Crockett and pass construction inspection before using the system, unless the 10-acre exception applies⁶¹⁴.
If a driveway will connect to a state highway, submit TxDOT Form 1058 and wait for a fully executed permit before any work starts in the right-of-way; give TxDOT 24 hours' notice before construction⁹.
If you're splitting off a tract for agricultural, ranch, wildlife-management or timber use, Houston County's subdivision plat requirement doesn't apply as long as the tract stays in that use¹⁹.
For anything else, including zoning or floodplain questions, start with the Houston County Judge's office¹³.

What to check before you buy land in Houston County

Soils and septic: with only 5.3% of the county's soils carrying no severe limitation for a conventional drain field, get a site evaluation before you commit to a parcel, and ask whether it qualifies for the 10-acre no-permit exception⁷¹⁷. Water: a private well owner doesn't have to register with the state unless the parcel falls inside a groundwater conservation district, so confirm whether one covers your specific tract²⁰. Access: a driveway onto a state highway needs a TxDOT permit and inspection before you touch the right-of-way, and the maximum width for a private residential driveway is 24 feet⁸. Land and climate: Houston County farmland has averaged about $3,488 an acre in the USDA census, the county gets roughly 47 inches of rain a year with severe drought in about 16% of recent years, and 56% of the land is wooded²¹²²²³²⁴. Taxes and location: the county's effective property tax rate runs about 0.9%, the median property tax bill is roughly $1,429 a year, and Houston County sits about 61 miles from the nearest metro area with a population density of about 18 people per square mile²⁵²⁶²⁷²⁸.

Watch-outs

No official Houston County source identifies a floodplain administrator or a county floodplain-development process; ask the County Judge's office who handles flood review locally before you buy near water¹³.
Zoning and building rules can differ inside the cities of Crockett, Grapeland, Kennard, Latexo and Lovelady; this guide covers unincorporated county land, since no official zoning ordinance was found for any of those cities either².

Sources

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.

How Houston County scores

Seclusion68100% ev.

Self-Sufficiency69100% ev.

Admin Boringness8790% ev.

Durability47100% ev.

Property Autonomy71100% ev.

Carry Cost79100% 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 →

$216kTypical home

0.9%Property tax

$3,488Land / acre

47.3"Annual rain

15.6% of yrsSevere drought

32.6 / yr (+24.6)Mid-century 100°F days

20.2 daysMid-century dry spell

2.54" (+5.9%)Mid-century 1-day rain

1.42×Wildfire change factor

100%Forward climate coverage

$1,846Home insurance / yr

-0.7% / yrInsurance growth

0%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

10,247People within 30 min

3,545,391People within 2 hr

13,957Radius comparison (15 mi)

17.9People / sq mi

12.4%Federal land

99.6%Land at 15% slope or less

5.3%Septic soil without severe limits

41,019 acWorkable land screen

55.8%Wooded land

45.1 tonsBiomass / forest ac

66.9°FAvg temp

Answers from the rulebook for Houston County

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

Houston County rules

Zoning districts · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Minimum dwelling size · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Minimum lot size · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Setbacks · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Lot coverage · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Building height · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Living in an RV · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Camping on your land · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Tiny homes · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Manufactured homes · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Accessory dwellings · by state lawNo county rule
Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov.
- 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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Agricultural exemptionAvailable (with conditions)
Plat requirements for daughter tracts created by subdivision in unincorporated Houston County.
- Every daughter tract must be used primarily for agricultural use, farm, ranch, wildlife management, or timber production as specified in the regulation.
- If a tract ceases to be used primarily for those purposes, the owner must comply with the subdivision regulations as with any newly divided tract.
“A plat is not required if every daughter tract is to be used primarily for agricultural use, as defined by Art. VII, Sec. 1d, Texas Constitution, or for farm, ranch, wildlife management, or timber production use within the meaning of Art. VIII, Sec. 1-d-1, Texas Constitution. If a tract of land ceases to be used primarily for these uses, the owner will be required to comply with these regulations on the same basis as any newly divided tract.”
Houston County Subdivision Regulations ↗Re-checked Sep 11, 2026
Building permitNot required
Texas counties have no authority to require building permits or prior approval for new residential construction in unincorporated areas; Houston County lists no county building-permit office and administers none for unincorporated land.
Texas Local Government Code Chapter 233 (statutes.capitol.texas.gov) ↗Scouted from the county site, not yet independently re-checked
County-wide zoningAbsent
Texas counties generally have no zoning authority in unincorporated areas (limited to a few legislatively named counties, which does not include Houston County).
Texas Local Government Code Chapter 231 (statutes.capitol.texas.gov) ↗Scouted from the county site, not yet independently re-checked

Texas rules that apply here

Building code adoptedPartial
Industrialized housing and buildings, modules, and modular components governed by the Texas Industrialized Housing and Buildings program.
- The mandatory state code adoption applies to industrialized housing and buildings, modules, and modular components, not all construction statewide.
- The effective date is July 1, 2024.
- The International Existing Building Code applies to alterations of portable industrialized buildings.
- Manufacturers already certified for Texas must have design-package documents reviewed and approved to the new editions with an approval date on or after July 1, 2024, unless the manufacturer elected to transition before the effective date under Department rule 70.70(a)(5)(B).
- Construction begun on or after July 1, 2024 must comply with the new code editions and approved design packages.
- Construction begun before July 1, 2024, or before a manufacturer's effective transition date, must meet the stated completion, inspection, and labeling deadline to remain eligible for a Texas decal.
effective date: 2024-07-01 · International Building Code: 2021 Edition (including appendices C, F, and K) · International Residential Code: 2021 Edition (including appendices AG, AH, AK, AP, AQ, and AT) · International Fuel Gas Code: 2021 Edition · International Mechanical Code: 2021 Edition · International Plumbing Code: 2021 Edition · International Energy Conservation Code: 2015 Edition · National Electrical Code: 2020 Edition · International Existing Building Code: 2021 Edition (for alterations of portable industrialized buildings)
“July 1, 2024, all industrialized housing and buildings, modules, and modular components shall comply with the following codes, as amended in §70.101 of the IHB Rules:”
Industrialized Housing and Buildings – Adoption of New Code Editions ↗Re-checked Sep 12, 2026
Who permits septicMixed (with conditions)
On-site sewage facilities in Houston County and elsewhere in Texas.
- The executive director is the permitting authority unless a local governmental entity has an OSSF order, ordinance, or resolution approved by the executive director.
- 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.
- The TCEQ Region 10 directory lists Houston County within Region 10, Beaumont.
“The executive director is the permitting authority unless a local governmental entity has an OSSF order, ordinance, or resolution approved by the executive director.”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Mixed — On-site sewage facilities, including septic systems, throughout Texas
  “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.”
  Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 12, 2026
Septic permitRequired
Construction, installation, alteration, extension, repair, or operation of an OSSF, including septic systems, in Houston County.
- A permit and approved plan are required unless an exception applies.
- The 10-acre exception requires a site evaluation by a TCEQ-licensed site evaluator or professional engineer; a single-family dwelling on a tract of at least 10 acres; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; on-site effluent disposal; and the single-family dwelling must be the only dwelling on the tract.
- Emergency repairs listed by TCEQ are exempt from permitting but must be reported in writing to the permitting authority within 72 hours after repairs begin.
- Grandfathered systems may be exempt if installed before the applicable authorized program or before September 1, 1989, whichever is earlier, are not creating a nuisance, are not in need of repair, and have not had a significant increase in use or otherwise been altered.
- Local permitting programs may be more stringent than state minimums.
minimum tract size for 10-acre exception: >= 10 acres (single-family dwelling and all listed exception conditions must be satisfied) · minimum OSSF setback from property line for 10-acre exception: >= 100 feet (all parts of the OSSF) · emergency-repair reporting deadline: <= 72 hours (after repairs have begun) · permit application decision deadline: <= 30 days (after receipt by permitting authority)
“A permit is required to construct, install, alter, extend, or repair an OSSF. Always check with your local permitting authority. Local permitting programs can be more stringent than State minimums.”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Required — Construction, installation, alteration, extension, or repair of an OSSF in Texas
  “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”:”
  Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 12, 2026
Septic inspectionRequired
Construction inspection of permitted OSSFs in Houston County.
- The installer must notify the permitting authority at least five working days, Monday through Friday excluding holidays, before the OSSF is ready for inspection.
- The permitting authority must conduct a construction inspection.
- If the OSSF fails inspection, it cannot be used until it passes inspection.
- A reinspection fee may be assessed and must be paid before reinspection.
- No inspection is required for the listed grandfathered systems or the qualifying 10-acre single-family-dwelling exception.
- A written notice of approval must issue within seven calendar days after the OSSF passes construction inspection.
inspection notice lead time: >= 5 working days (Monday through Friday, excluding holidays) · notice of approval deadline after passing inspection: <= 7 calendar days
“The installer shall notify the permitting authority at least five working days (Monday through Friday, excluding holidays) before the date the OSSF will be ready for inspection. (3) The permitting authority shall conduct a construction inspection.”
On-Site Sewage Facility Rules Compilation ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Limited — OSSF installation and, where applicable, maintenance inspections in Texas
  “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.”
  Basics for Septic Systems ↗Re-checked Sep 12, 2026
Off-grid sanitationLimited
Off-grid residential sewage disposal through an OSSF on property in Houston County.
- An OSSF is generally subject to permit, approved-plan, construction, operation, and inspection requirements.
- A qualifying single-family dwelling on a tract of at least 10 acres may have no planning materials, permit, or inspection if the OSSF is not causing a nuisance or polluting groundwater, all parts are at least 100 feet from the property line, effluent is disposed of on the property, and it is the only dwelling on the tract.
- Grandfathered systems meeting the rule conditions may be exempt.
- Systems treating more than 5,000 gallons per day, accepting municipal/agricultural/industrial or other Water Code Chapter 26 waste, discharging into or adjacent to state waters, or new cluster systems are excluded from this OSSF subchapter and may require another permit.
daily sewage treatment threshold: > 5000 gallons per day (systems exceeding this threshold are excluded from this OSSF subchapter)
“No planning materials, permit, or inspection are required for an OSSF for a single family dwelling located on a tract of land that is ten acres or larger and:”
On-Site Sewage Facility Rules Compilation ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Prohibited — Installation or use of boreholes, cesspools, and seepage pits for sewage treatment or disposal in Houston County.
  “Boreholes, cesspools, and seepage pits are prohibited for installation or use.”
  On-Site Sewage Facility Rules Compilation ↗Re-checked Sep 11, 2026
Well permitLimited
Private water wells in Houston County, Texas, subject to any applicable groundwater conservation district rules.
- Private water-well owners do not need to register the well with the state unless the property falls within a groundwater conservation district.
- Each groundwater conservation district has its own rules and may require registration or permits.
- Registered water-well drillers and landowners who drill their own wells must submit a State of Texas Water Well Report when drilling a new well.
- The official sources reviewed did not establish whether a Houston County-specific groundwater conservation district currently exercises jurisdiction over the particular parcel.
“Private water well owners in Texas do not need to register their well unless the property falls within the jurisdiction of a groundwater conservation district (GCD).”
General Groundwater and Private Water Well FAQ ↗Re-checked Sep 11, 2026
Driveway accessRequired
New or modified access driveways connecting property to a Texas state highway right of way.
- A local public agency may receive access driveway permitting authority for state highways, but TxDOT approval remains required for drainage impacts on the state highway system before local approval.
- No access driveway is permitted within a flared or widened right-of-way section at an intersection of a state highway with another highway, road, or street.
- All entrances and exits, including radii, must be confined within the permittee's property frontage.
- One-way 45-to-90-degree driveways are permitted for connections to one-way frontage roads or lane-divided highways; otherwise the driveway angle must be 75 to 90 degrees.
- ADAAG and Texas Accessibility Standards apply.
private residential driveway maximum width: <= 24 feet (Except as increased by permissible radii.) · driveway-to-pavement radius: >= 15 feet
“A driveway must be constructed in accordance with a fully executed driveway permit”
Section 4: Driveway Permits, Design, and Materials ↗Re-checked Sep 12, 2026
Permit processPublished (with conditions)
Constructing a new driveway or revising an existing driveway on the right of way of a Texas state highway.
- The applicant should contact the local District TxDOT office.
- The applicant must submit Form 1058, Permit to Construct Access Driveway Facilities on Highway Right of Way.
- The application must be for the bona fide purpose of securing or changing access to the owner's property, not parking or servicing vehicles on state highway rights of way.
- No construction may begin on the right of way until a fully executed driveway permit is received and the applicant gives TxDOT 24-hour notification.
- The driveway must comply with the executed permit and applicable regulations; TxDOT inspection must find construction satisfactory.
- Where a local public agency has permitting authority, drainage impacts on the state highway system still require TxDOT approval before local approval.
- Driveway geometrics, utilities, environmental requirements, wetlands considerations, ADAAG, TAS, and other applicable state and federal laws must be considered.
required form: Form 1058, Permit to Construct Access Driveway Facilities on Highway Right of Way · advance notification: 24 hours (Notification to TxDOT is required before construction on the right of way.) · private residential driveway maximum width: <= 24 feet (Except as increased by permissible radii.) · minimum driveway radius to highway pavement: >= 15 feet
“The applicant shall complete and submit to TxDOT a Form 1058”
Section 4: Driveway Permits, Design, and Materials ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Published (with conditions) — On-site sewage facility permitting in Texas, including Houston County when no local jurisdiction has an authorized permitting program.
  “A permit is required to construct, install, alter, extend, or repair an OSSF. Always check with your local permitting authority. Local permitting programs can be more stringent than State minimums.”
  Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
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.”
Local Government Code Chapter 233, County Regulation of Housing and Other Structures ↗Re-checked Sep 21, 2026

Still unanswered

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

Owner-builder exemption — Whether an owner-builder is exempt from Houston County building permits or inspections.
Local zoning — Aggregate local zoning within Houston County, including incorporated municipalities and unincorporated county areas; this aggregate does not treat Houston County as the administrator of municipal ordinances.
Building in a floodplain — Floodplain development in Houston County, Texas.
Short-term rentals — Short-term rental use in Houston County, Texas.
Permit fees — Permit fees for county-level development, access, floodplain, and short-term-rental approvals in Houston County, Texas.

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.

Living off-grid in Houston County, Texas

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

Houston County scores 82/100 on the Bolthole Index, a strong county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost.

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

Houston County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Houston County (TCEQ authorized agent for on-site sewage). 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 Houston County?

Living in an RV on your own land in Houston County is allowed: Unincorporated Houston County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Houston County has no zoning ordinance. The county legal census found no county zoning ordinance, citing statutes.capitol.texas.gov. 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 Houston County, Texas?

Land in Houston County runs about $3,488 per acre, based on the latest county data.

What is the water situation in Houston County?

Houston County gets about 47.3" of rain a year, with severe drought in roughly 15.6% of years.

How remote is Houston County?

A representative private-land location has about 10,247 people within a 30-minute drive and 3,545,391 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.

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

At a glance

Who to call

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

Who handles zoning and land use in Houston County?

How do septic permits work in Houston County?

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

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

What to check before you buy land in Houston County

Watch-outs

Sources

Houston County in Texas

How Houston County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Houston County

Houston County rules

Texas rules that apply here

Still unanswered

Living off-grid in Houston County, Texas

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

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

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

How much does land cost in Houston County, Texas?

What is the water situation in Houston County?

How remote is Houston County?

How Houston compares in Texas