Polk County, TX Building Permits, Zoning & Septic Rules

Unincorporated Polk County, Texas is different from most Texas counties: you must get a development permit before building or adding any man-made structure, and that same permit is required to get electric service to the structure¹. The Permits Department also administers septic permits, and since late 2024 the county has required development and septic permits to be obtained together². Building in the floodplain adds one more step: an Elevation Certificate before either permit can be purchased³.

At a glance

Building permit: Required before any construction; a development permit from the Permits Department, valid 2 years from purchase¹²
Zoning: No countywide zoning ordinance found; the county's permits page covers only development and OSSF permitting⁴
Septic permits: Polk County Permits Department, the TCEQ-authorized agent; required with narrow exceptions⁵
Septic exemption: The first home on a single deeded tract of 10+ acres skips buying an OSSF permit, but still needs a compliant system⁶
RV parks / manufactured-home communities: Need an approved infrastructure development plan and a Certificate of Compliance before utilities connect⁷⁸
Minimum lot size: 2 acres with a private well and septic, or 1 acre with an approved public water supply and septic⁹
Permit fees: $150 residential development, $300 residential septic (new), $150 residential septic repair¹⁰
Septic soil difficulty: Only 12.5% of county soils are free of severe limits for a conventional drain field¹¹

Who to call

Building permits

Polk County Permits Department

Development (building) permits, OSSF (septic) permits, and floodplain determinations for unincorporated Polk County; also serves as the Floodplain Administrator's office

936-327-6820 Ext. 1

[email protected]

602 E Church Street, Suite 141, Livingston, TX 77351

Contact details are copied from each office’s official page and were checked against it on September 23, 2026.

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

Yes. Unlike most unincorporated Texas counties, Polk County requires a development permit before you build, add any man-made structure, or add onto an existing one². Texas law generally withholds general building-code authority from counties, so Polk County's permit isn't a building-code inspection program for an ordinary home; it's a development-tracking permit, tied to floodplain compliance and required before you can get electric service to the structure¹¹². The permit is good for two years from the date you buy it, and if your land is in a mapped floodplain, you need an Elevation Certificate before you can purchase it². Commercial buildings carry an added layer: they must be inspected for compliance with NFPA 101 (2021 edition) and NFPA 1 Fire Life Safety Codes through the Fire Marshal¹³. If your land sits inside the Corrigan, Livingston, Onalaska or Goodrich city limits, that city's own permit office handles your project instead of the county².

Who issues permits in Polk County, and how do you reach them?

One office covers it all: the Polk County Permits Department, in Suite 141 at 602 E Church Street in Livingston, issues development permits, OSSF (septic) permits, and 911 addresses, and also fields floodplain determinations for the county's Floodplain Administrator¹⁴¹⁰. Development and septic permits must now be applied for together, a rule the county recently put in place². A residential development permit costs $150 with no size requirement, while commercial development runs $500 for the first 1,500 square feet plus $100 for each additional 1,000 square feet¹⁰.

Does Polk County have zoning?

No countywide zoning ordinance was found for Polk County; the county's own permits page addresses development, septic and addressing permits, not zoning districts⁴. Texas law only lets counties zone a handful of specially defined areas, such as Padre Island beaches and select lakes and military zones, and Polk County is not among them, so the county has no general power to zone unincorporated land¹⁵. That means unincorporated Polk County sets no minimum home size, no setbacks, no lot-coverage limit and no building-height limit, and accessory dwellings, tiny homes and temporary camping are unrestricted under county zoning rules¹⁶. Two specific land uses are regulated separately, though: an RV park of two or more units, or a manufactured home rental community, each requires an approved infrastructure development plan and a Certificate of Compliance before utilities can connect, and RV parks are capped at 10 units per acre⁷⁸. Dividing a tract into two or more lots outside a city also requires an approved, recorded subdivision plat, unless the split is exempt, including a primarily agricultural-use exception¹⁷¹⁸.

How do septic permits work in Polk County?

Polk County enforces state OSSF standards itself, through the Permits Department as the county's designated representative, and all on-site sewage facility plans go there for approval¹⁹¹⁴. There's one narrow break from that rule: the first home on a single deeded tract of 10 acres or larger can skip buying an OSSF permit by filing a 10 Acre Exemption Form, though the property still needs a compliant septic system, and any additional home on the tract needs its own permit⁶. Fees run $300 for a new residential system or $150 for a repair, and $400 or $200 respectively for commercial¹⁰. Every installation needs an inspection before it's covered, with at least three working days' notice requested, and a successful inspection produces a Notice of Approval or License Letter²⁰. Lot size follows suit: 2 acres minimum with a private well and septic, or 1 acre with an approved public water supply and septic, under the county's subdivision water-availability rules⁹. Soils are a real factor here: only 12.5% of Polk County's land is free of severe limitations for a conventional drain field, among the toughest ground in the region, so budget for a site evaluation and likely an alternative system¹¹.

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

A single RV, tiny home or manufactured home on your own unincorporated land isn't restricted by county zoning, since Polk County has no zoning ordinance to set occupancy rules¹⁶. It's a different story if you're developing a park: land used for two or more RVs as an RV park, or for a manufactured home rental community, needs an approved infrastructure development plan and a Certificate of Compliance before water, sewer, gas or electric service can connect, and RV parks can't exceed 10 units per acre⁷. Whatever you build still needs the county's development permit before construction and, if it involves a septic system, an OSSF permit through the Permits Department²¹⁴.

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

First, confirm whether your parcel is in a mapped floodplain; if it is, get an Elevation Certificate before you can purchase either permit³. Next, apply for your development permit and OSSF (septic) permit together through the Permits Department, since the county now requires both to be obtained at the same time, unless your tract qualifies for the 10-acre first-home septic exemption¹⁴²⁶. Order a site and soil evaluation early, since most of the county's soils have severe limitations for a conventional drain field¹¹. Confirm your lot meets the county's minimum size for your water source, 2 acres with a private well or 1 acre with public water, before you count on building there⁹. Budget for permit fees: $150 for residential development and $300 for a new residential septic system¹⁰. If your driveway will cross a county road right-of-way, get the precinct commissioner's driveway/culvert permit and give at least 24 hours' notice before construction²¹. Finally, keep your development permit current: it's valid for two years from the date of purchase, so time your build accordingly².

What to check before you buy land in Polk County

Soils and rain both matter here: the county sees about 53.6 inches of rain a year with severe drought in only 11.3% of years, but just 12.5% of soils are free of severe limitations for a conventional septic drain field, so plan for a careful site evaluation and possibly an engineered system²²²³¹¹. The land itself is flat and heavily wooded, with 100% of the county at 15% slope or less and 78.3% forested, so clearing costs for a building site and driveway are worth budgeting for²⁴²⁵. Check whether your parcel is in the mapped floodplain before you buy, since that triggers both an Elevation Certificate and extra permit steps³. If you'll need a well, note that water wells drilled in Polk County must be registered with the Lower Trinity Groundwater Conservation District, even for domestic use²⁶. Confirm any recent split of the tract went through the county's subdivision-plat process or qualified for an exception, since that affects road access and utility easements¹⁷. Typical property tax runs about 1% effectively, with a median bill near $1,597 a year, on a typical home value around $183,009²⁷²⁸²⁹.

Watch-outs

Polk County requires a development permit before construction, unlike most unincorporated Texas counties, which have no such requirement — confirm this with the Permits Department before assuming Texas's usual 'no county building permit' pattern applies here¹¹².
No official source confirms whether Polk County requires a certificate of occupancy beyond the development permit itself, so confirm directly with the Permits Department².

Sources

Written September 23, 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 Polk County scores

Seclusion72100% ev.

Self-Sufficiency68100% ev.

Admin Boringness63100% ev.

Durability58100% ev.

Property Autonomy71100% ev.

Carry Cost78100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$183kTypical home

1%Property tax

$4,083Land / acre

53.6"Annual rain

11.3% of yrsSevere drought

22.2 / yr (+18.2)Mid-century 100°F days

17.6 daysMid-century dry spell

2.67" (+5.5%)Mid-century 1-day rain

1.39×Wildfire change factor

100%Forward climate coverage

$2,132Home insurance / yr

0% / yrInsurance growth

0%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

3,515People within 30 min

3,570,774People within 2 hr

17,205Radius comparison (15 mi)

51.3People / sq mi

2.8%Federal land

100%Land at 15% slope or less

12.5%Septic soil without severe limits

75,441 acWorkable land screen

78.3%Wooded land

38 tonsBiomass / forest ac

67.6°FAvg temp

Answers from the rulebook for Polk County

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

Polk County rules

Building permitRequired
Building or adding any man-made structure, or adding onto an existing structure, in unincorporated Polk County.
- A development permit must be obtained before construction.
- A residential development permit is also needed to obtain electric service for the structure.
- An Elevation Certificate is required before permits can be purchased when building in the floodplain.
- The permit is good for two years from the date of purchase.
- For properties within the Corrigan, Livingston, Onalaska, or Goodrich city limits, the county page directs applicants to the respective city rather than the county permit process.
- The county permit page states that development and septic permits must be obtained simultaneously effective 10.22.2024.
permit validity: 2 years (from the date of purchase) · residential development permit fee: 150 USD (county fee schedule; residential development has no size requirement)
“You must obtain a development permit before building or adding any man-made structure”
Permits | Polk County, TX ↗Re-checked Sep 21, 2026
Building code adoptedPartial
New commercial buildings constructed in unincorporated Polk County, and commercial buildings or structures subject to Polk County's Industrial High-Load Facility Site Impact Permit Policy.
- All new commercial buildings must be inspected.
- Compliance is with NFPA 101, 2021 edition, and NFPA 1 Fire Life Safety Codes.
- For facilities subject to the Industrial High-Load policy, applicants must contact the Polk County Fire Marshal before application submittal to confirm the currently adopted edition and any local amendments.
- The Industrial High-Load policy requires inspection following construction and before occupancy or operation, as applicable.
- The county adoption is partial because the located official sources establish NFPA fire and life-safety codes for commercial construction, not a comprehensive countywide building code for all construction types.
NFPA 101 edition: 2021 · adopted code: NFPA 1 Fire Life Safety Codes
“Note: All new commercial buildings constructed must be inspected and comply with NFPA 101 - 2021 edition and NFPA 1 Fire Life Safety Codes.”
Fire Marshal | Polk County, TX ↗Re-checked Sep 21, 2026
InspectionsLimited
New commercial buildings constructed in unincorporated Polk County, for fire/life-safety inspection and code compliance.
- The county Fire Marshal page states that the office operates in the unincorporated areas of Polk County.
- The inspection requirement applies to all new commercial buildings identified on the Fire Marshal page.
- New commercial buildings must comply with NFPA 101 - 2021 edition and NFPA 1 Fire Life Safety Codes.
- The source does not establish a general county residential building-inspection requirement.
applicable code: NFPA 101 - 2021 edition and NFPA 1 Fire Life Safety Codes
“All new commercial buildings constructed must be inspected and comply with NFPA 101 - 2021 edition and NFPA 1 Fire Life Safety Codes.”
Fire Marshal | Polk County, TX ↗Re-checked Sep 21, 2026
Zoning districts · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 sizeSpecified
Residential subdivisions in unincorporated Polk County subject to the county water-availability and subdivision regulations.
- The water-availability model rules apply only to subdivisions of two or more lots of five acres or less intended for residential purposes.
- Lots of more than five acres are exempt from the water-availability regulations, and other state-law platting exemptions may apply.
- The stated minimums may be increased if required by TCEQ or the Texas Water Development Board.
minimum tract size with private water well and approved OSSF: >= 2 acres (or more if required by TCEQ or the Texas Water Development Board) · minimum tract size with TCEQ-approved public groundwater supply and approved OSSF: >= 1 acre (or more if required by TCEQ or the Texas Water Development Board) · minimum lot size with organized wastewater collection and treatment within disposal capacity: >= 0.5 acre · minimum lot size where organized wastewater capacity cannot be guaranteed for greater densities: >= 1 acre
“When a private water well and an approved on-site sewage facility is used, a minimum tract size of two (2.0) acres is required to lessen the accidental contamination of adjacent water wells (or more if required by TCEQ or Texas Water Development Board).”
Polk County Subdivision Regulations ↗Re-checked Sep 21, 2026
Setbacks · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 RVLimited
Occupancy of two or more recreational vehicles for dwelling or sleeping purposes in a privately owned and operated RV park outside incorporated municipalities in Polk County.
- The use must qualify as an RV park accommodating two or more recreational vehicles.
- An infrastructure development plan must be prepared and submitted to the Polk County Commissioners Court or its designee before construction.
- Construction may begin only after plan approval; failure to reject a complete application within 30 days constitutes approval.
- A Certificate of Compliance is required before utilities may provide water, sewer, gas, or electric service.
- Temporary hunting camps are excluded from the RV park definition.
- RV parks are also subject to Polk County subdivision regulations and potentially municipal subdivision regulations in a municipality's extraterritorial jurisdiction.
- The regulations were adopted effective December 13, 2022.
maximum density: <= 10 units per acre · minimum width for private streets: >= 24 feet · minimum size for 20% of parking spaces: 18 by 50 feet · minimum clearance between adjacent rows: >= 10 feet · engineering review retainer: 5000 USD (paid by owner/subdivider/developer) · Certificate of Compliance inspection fee: 40 USD (per inspection) · Certificate of Compliance filing fee: 26 USD (per filing)
“The owner of land in Polk County outside the limits of a municipality who intends to use the ground for a Recreational Vehicle Park must have an infrastructure Development Plan prepared that complies with the minimum infrastructure standards set out below in Section 3. [...] Recreational Vehicle Parks shall be designed so as not to exceed a maximum of 10 units per acre.”
RV Park and Manufactured Home Rental Community Regulations ↗Re-checked Sep 21, 2026
Camping on your land · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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 homesLimited
Occupancy of manufactured homes in manufactured home rental communities outside incorporated municipalities in Polk County.
- A manufactured home rental community is a tract divided into two or more spaces or lots rented, leased, or offered for rent or lease without a purchase option for manufactured homes and/or tiny homes used as residences.
- An infrastructure development plan must be submitted to and approved by the Polk County Commissioners Court or its designee before construction.
- A Certificate of Compliance is required before utilities may provide service.
- Each manufactured home space must be at least 12,500 square feet.
- If septic systems are used, each space must contain at least 1 acre; if individual wells are also used, at least 2 acres; with approved community water and sewer, each space must contain at least 12,500 square feet.
- The regulations were adopted effective December 13, 2022.
minimum manufactured home space: >= 12500 square feet · minimum space with septic: >= 1 acre · minimum space with septic and individual well: >= 2 acres · minimum private street width: >= 24 feet
“The owner of land located in Polk County outside the limits of a municipality who intends to use the land for a Manufactured Home Rental Community must have an infrastructure Development Plan prepared that complies with the minimum infrastructure standards that are set out below in Section 3. [...] If septic systems are to be used, each Manufactured Home Space shall contain an area of not less than 1 acre. Each space must have not less than 2 acres if individual water wells are also to be used.”
RV Park and Manufactured Home Rental Community Regulations ↗Re-checked Sep 21, 2026
Accessory dwellings · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Polk County has no zoning ordinance. The county legal census found no county zoning ordinance, citing polktx.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
Who permits septicCounty
On-site sewage facilities in Polk County, Texas.
- Polk County enforces state standards.
- All on-site sewage facility plans must be submitted to the Polk County Permits Department for approval.
“Polk County enforces state standards for the installation or modification of an on-site septic system.”
Permits | Polk County, TX ↗Re-checked Sep 21, 2026
Septic inspectionRequired
New aerobic and conventional septic system installations processed through the Polk County permitting procedure.
- Inspection is required before the system is covered.
- At least 3 working days' advance notice is requested.
- For aerobic systems, plans must be reviewed and approved before an authorization to construct is issued.
- For conventional systems, plans must be reviewed and approved before an authorization to construct is issued.
- A successful inspection results in a Notice of Approval or License Letter.
advance inspection notice: >= 3 working days (Notice is requested, not stated as a mandatory advance-notice condition.) · plan review time: 7-10 days (County septic instruction sheet.)
“An inspection of the installation is required BEFORE covering the system.”
How To Obtain A Permit For A New Septic System ↗Re-checked Sep 21, 2026
Well permitLimited
Water wells drilled or operated in Polk County within the Lower Trinity Groundwater Conservation District, which serves Polk and San Jacinto Counties.
- Every well must first be registered with the District before drilling, modifying, completing, changing type of use, plugging, abandoning, or altering well size.
- District staff review the registration application and preliminarily determine whether the well requires a permit.
- Domestic-use wells incapable of producing more than 25,000 gallons per day are not required to have a District permit but must be registered.
- Domestic-use or agricultural-use wells are exempt from a permit if the owner or operator provides a signed statement that the well will not produce more than 5 million gallons per year; exempt wells must still be registered.
- An Operating Permit is required for every well other than wells used solely for an exempt use.
- Non-exempt commercial wells require Drilling and Operating Permits before drilling and operating.
domestic exempt production capacity: <= 25000 gallons per day (Well must be used solely for domestic use or livestock/poultry water.) · domestic or agricultural exempt annual production: <= 5000000 gallons per year (Owner or operator must provide a signed statement that production will not exceed this amount.) · drilling permit term: 180 calendar days (May be extended for an additional 180-day period and later extensions may be approved for good cause if no material change occurred.) · operating permit term: 3 years (Initial permits may be prorated for the remaining months of the application year.)
“The following wells are not required to have a permit from the District:”
Permits | Polk County, TX ↗Re-checked Sep 21, 2026
Agricultural exemptionConditional
Subdivision platting in unincorporated Polk County when land is primarily used for agricultural, farm, ranch, wildlife-management, or timber-production purposes.
- The owner must not lay out part of the tract as streets, alleys, squares, parks, or other areas intended for public use or for purchasers or owners of lots adjacent to such areas.
- The land must be used primarily for agricultural use under Section 1-d, Article VIII, Texas Constitution, or for farm, ranch, wildlife-management, or timber-production use under Section 1-d-1, Article VIII, Texas Constitution.
- If the tract ceases to be used primarily for the qualifying purposes, the county's platting requirements apply.
- A developer may request a Certificate of Exemption from the Commissioners Court, and an approved certificate is recorded with the court minutes and a copy of the plat or survey.
“the land is to be used primarily for agricultural use, as defined by Section 1-d, Article VIII, Texas Constitution, or for farm, ranch, wildlife management, or timber production use within the meaning of Section 1-d-1, Article VIII, Texas Constitution.”
Polk County Subdivision Regulations ↗Re-checked Sep 21, 2026
Subdividing landRegulated (with conditions)
Subdivision of land outside incorporated municipalities in Polk County, Texas.
- A tract division creating two or more lots or tracts generally requires an approved and recorded plat unless exempt by state law or the county regulations.
- Property within a municipality or municipality ETJ may be under the municipality's exclusive jurisdiction under applicable interlocal agreements.
- No subdivided land may be sold or conveyed until the plat is approved and recorded.
- Agricultural, family-transfer, large-lot, veterans' land-board, governmental, and other listed statutory exemptions may apply.
“The owner of a tract of land located outside the corporate limits of a municipality that divides the tract in any manner that creates two or more lots or tracts must have a plat of the subdivision prepared, unless the proposed division is exempt by state law.”
Polk County Subdivision Regulations ↗Re-checked Sep 21, 2026
Driveway accessLimited
Access driveways constructed or reconstructed within a Polk County road right-of-way.
- The driveway permit applies to the County road right-of-way and abutting County Road identified in the permit.
- The grantee is responsible for culvert costs and installation.
- Construction and materials are subject to County inspection and approval.
- The County may require changes, maintenance, or repairs needed to protect life or property.
- Entrances must keep obstructions out of the right-of-way.
- The driveway facilities must be constructed within six months of permit issuance or the permit becomes null and void.
- The grantee must contact the Court's representative at least 24 hours before beginning authorized construction.
vehicle service fixture setback from right-of-way line: >= 12 feet (Fuel pumps, fuel tanks, vendor stands, and similar fixtures)
“I, Commissioner _____________________ of Precinct #_____ Polk County, Texas, authorize ____________________________________, hereinafter called the Grantee, to (re)construct an access driveway on the County road right-of way abutting County Road ______________________________ in Polk County, Texas, located at_________________________; SUBJECT TO THE FOLLOWING: 1. The Grantee is responsible for the culvert costs and installation.”
Subdivision Regulations ↗Re-checked Sep 21, 2026
Building in a floodplainRequired
Development in areas of special flood hazard within Polk County jurisdiction.
- A Base Flood Elevation certificate is required in addition to a Development Permit for development in the floodplain.
- The final determination is made by the Polk County Floodplain Administrator.
- The Flood Damage Prevention Order applies to all areas of special flood hazard within Polk County jurisdiction.
- The order adopts FEMA FIRM or FHBM areas, Community Number 480526, dated September 3, 2010, and revisions thereto.
- A Floodplain Development Permit application may require scaled plans, elevations, professional certification for nonresidential floodproofing, and a description of alterations to watercourses or natural drainage.
- No structure or land may be located, altered, or have its use changed without compliance with the ordinance and other applicable regulations.
FIRM or FHBM community number: 480526 · adopted map date: September 3, 2010 (And any revisions thereto)
“A Floodplain Development Permit shall be required to ensure conformance with the provisions of this ordinance. A Development Permit System is hereby established to ensure compliance with the provisions of this Court Order.”
Floodplain Management ↗Re-checked Sep 21, 2026
Permit feesPublished (with conditions)
Polk County development, septic, 911 addressing, commercial development, RV park, manufactured home rental community, communication tower, oil and gas well, high-pressure gas line, and solar farm permits.
- The fee schedule states that the Commissioners Court approved it on June 25, 2024.
- The fee schedule states that it became effective October 1, 2024.
- Failure to obtain permits before construction may result in administrative fees and/or court fines/fees.
- Non-compliance will be forwarded to court.
- All offenses are cumulative against the property owner and/or builder/contractor regardless of location.
- Development permitting is administered by incorporated cities in specified city limits, including Corrigan, Livingston, Onalaska, and Goodrich.
residential septic permit: 300 USD · residential septic repair: 150 USD · commercial septic permit: 400 USD (Multi-unit residential developments or combined flows from single-family residences) · commercial septic repair: 200 USD · maintenance contract processing fee: 15 USD · 911 addressing: 35 USD · residential development: 150 USD (No size requirement) · commercial development up to 1500 square feet: 500 USD · each additional 1000 square feet or portion thereof: per 100 USD (Commercial development) · RV park covering 5 RV sites: 500 USD ($100 for each additional RV site) · manufactured home rental community covering 5 sites: 500 USD ($100 for each additional site) · communication tower: 500 USD (Per new tower) · oil and gas well: 500 USD · high-pressure gas line: 2500 USD · solar farm up to 100 acres: 500 USD ($100 for each additional 20 acres or portion thereof)
“POLK COUNTY PERMIT DEPARTMENT PERMIT FEE SCHEDULE [...] Residential Development (no size requirement) $150.00 [...] COMISSIONER COURT APPROVED ON ________________ June 25, 2024 EFFECTIVE on October 1, 2024”
Permits ↗Re-checked Sep 21, 2026
Permit processPublished (with conditions)
County development permit applications and related septic and addressing processes, subject to incorporated-city exceptions.
- A development permit is required before building, adding a man-made structure, or adding onto an existing structure.
- A residential development permit is also needed to obtain electric service for the structure.
- An Elevation Certificate is required when building in the floodplain before permits can be purchased.
- Residential development permits are valid for two years from purchase.
- Commercial development requires Polk County Fire Marshal plan review first.
- Development and septic permits must be obtained simultaneously effective October 22, 2024.
- The county directs applicants in Corrigan, Livingston, Onalaska, and Goodrich city limits to the respective city authorities.
- All on-site sewage facility plans must be submitted to the Permits Department for approval.
- The first home on a single deeded tract of 10 acres or larger may use the OSSF permit exemption only by filing a 10 Acre Exemption Form; an OSSF permit is required for each additional home, and tracts under 10 acres always require an OSSF permit.
development permit validity: 2 years (From date of purchase) · OSSF permit validity: 1 year (The residential permit form states this expires unless revoked) · permit review period: <= 30 days (The residential permit form states the permit is subject up to a 30-day review)
“You must obtain a development permit before building or adding any man-made structure or adding onto an existing structure. You will also need a residential development permit to obtain electric service for your structure. An Elevation Certificate (EC) is required when building in the floodplain before permits can be purchased. This permit is good for two years from the date of purchase.”
Permits ↗Re-checked Sep 21, 2026
County-wide zoningAbsent
Texas counties lack general zoning authority in unincorporated areas; the county permits page addresses only development/OSSF permitting, not zoning districts.
Polk County TX Permits Department ↗Scouted from the county site, not yet independently re-checked
Owner-builder exemptionAvailable
The first home on a single deeded tract of 10 acres or larger is exempt from purchasing an OSSF permit (an exemption form is filed), though a compliant septic system is still required.
Polk County TX Permits Department ↗Scouted from the county site, not yet independently re-checked

Texas rules that apply here

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”:”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 12, 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.

Certificate of occupancy — Certificates of occupancy for structures in unincorporated Polk County.
Local zoning — Aggregate of municipal and other local zoning within Polk County; this county aggregate does not itself identify or administer each incorporated municipality's ordinance.
Mandatory utility hookup — Whether a parcel must connect to public water, public sewer, both, or neither in Polk County.
Short-term rentals — Short-term rental use in Polk 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 Polk County, Texas

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

Polk County scores 82/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 3,515 people within a 30-minute drive.

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

Polk County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Polk County Permits Department (Designated Representative, TCEQ authorized agent). Owner-builders may act as their own contractor to build their home. 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.

How much does land cost in Polk County, Texas?

Land in Polk County runs about $4,083 per acre, based on the latest county data.

What is the water situation in Polk County?

Polk County gets about 53.6" of rain a year, with severe drought in roughly 11.3% of years.

How remote is Polk County?

A representative private-land location has about 3,515 people within a 30-minute drive and 3,570,774 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 Polk County, Texas

At a glance

Who to call

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

Who issues permits in Polk County, and how do you reach them?

Does Polk County have zoning?

How do septic permits work in Polk County?

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

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

What to check before you buy land in Polk County

Watch-outs

Sources

Polk County in Texas

How Polk County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Polk County

Polk County rules

Texas rules that apply here

Still unanswered

Living off-grid in Polk County, Texas

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

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

How much does land cost in Polk County, Texas?

What is the water situation in Polk County?

How remote is Polk County?

How Polk compares in Texas