Building permits, zoning and land rules in Polk County, Texas
82Index Score / 100 #14 of 254 in Texas
Unincorporated Polk County, Texas requires a county development permit before you build or add to a structure, and the county sets no zoning12. The Polk County Permits Department approves septic (OSSF) plans, usually bought with the development permit34. Inside Corrigan, Livingston, Onalaska and Goodrich, the city issues the development permit; Corrigan and Goodrich also zone, and septic within 2,000 feet of Lake Livingston goes to the Trinity River Authority1567.
At a glance
Building permit
A county development permit is required before construction in unincorporated areas4
Residential inspections
The published commercial inspection rule does not establish a general residential inspection program; ask the Permits Department8
Zoning
No general county zoning authority in unincorporated Polk County2
Septic permits
Plans go to the Polk County Permits Department for approval3
Septic exemption
Conditional permit exemption for the first home on a single deeded tract of 10 acres or more9
RV and tiny-home parks
Multi-unit parks and rental communities require infrastructure approval before construction1011
Subdivision lot size
For covered residential subdivisions, 2 acres with a private well and septic or 1 acre with public water and septic12
Permit fees
$150 residential development and $300 for a new residential septic permit13
Development (building) permits, OSSF (septic) permits, and floodplain determinations for unincorporated Polk County; also serves as the Floodplain Administrator's office
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Polk County, Texas?
Yes. Unincorporated Polk County requires a development permit before building any man-made structure or adding to an existing structure, and a residential development permit is also needed to obtain electric service4. The permit remains valid for two years after purchase4. A floodplain project requires an Elevation Certificate before permits can be purchased414. New commercial buildings in unincorporated Polk County must be inspected and comply with NFPA 101 (2021 edition) and NFPA 1 Fire Life Safety Codes15. The published commercial rule does not establish a general county residential building-inspection requirement, so ask the Permits Department what inspections, if any, apply to a house8. Inside Corrigan, Livingston, Onalaska or Goodrich city limits, the applicable city issues the development permit instead of the county1. City limits do not move septic permits: the county Permits Department still approves OSSF plans, except near Lake Livingston, where the Trinity River Authority issues them37.
Who issues building, septic and floodplain permits in Polk County, and how do you reach them?
The Polk County Permits Department handles county development permits, OSSF permits and floodplain questions from its office at 602 E Church Street, Suite 141, in Livingston163. Call 936-327-6820 Ext. 1 or email permits@co.polk.tx.us before finalizing plans16. The county says commercial development requires Fire Marshal plan review before the development-permit application proceeds4. A residential development permit costs $150, while a new residential septic permit costs $300 and a residential septic repair permit costs $15013. The county generally requires development and septic permits to be obtained at the same time4. Failure to obtain required permits before construction can lead to administrative charges or court fines and fees13.
Does Polk County have zoning?
Unincorporated Polk County has no general county zoning rule setting zoning districts, minimum dwelling size, setbacks, lot coverage or building height2. That does not erase the county's development-permit, floodplain, septic, subdivision or special-development rules41417. Dividing land into two or more tracts outside a municipality generally requires an approved and recorded plat unless a state-law or county exemption applies, such as the Commissioners Court Certificate of Exemption for land used primarily for agriculture, ranching, wildlife management or timber production1718. Covered residential subdivisions have water-dependent lot minimums: two acres with a private well and approved septic system, or one acre with an approved public groundwater supply and septic system12. Those acreage minimums apply to specified residential subdivisions, not automatically to every existing parcel12. The cities are different: Corrigan has its own municipal zoning chapter and issues its own development permits, and Goodrich's Planning and Zoning page covers zoning amendments, site plans and plats56. We could not confirm whether Livingston or Onalaska zone, so ask each city before relying on the unincorporated-county answer17.
How do septic permits work in Polk County?
Polk County enforces state OSSF standards, and all on-site sewage facility plans must go to the Polk County Permits Department for approval3. A narrow exception applies to the first home or residential structure on one deeded tract of at least 10 acres: the owner may avoid purchasing an OSSF permit after filing the county's 10 Acre Exemption Form9. The exemption does not waive septic standards, does not cover another home on the tract and does not apply to a tract under 10 acres19. It is a septic-permit exception, not a general owner-builder exemption from the development permit94. Properties within 2,000 feet of Lake Livingston are directed to the Trinity River Authority for the on-site septic permit, and the permitting authority may impose rules stricter than state minimums7. Permitted installations must be inspected before the system is covered, and the county requests at least three working days' notice20. Only 12.5% of county soils lack severe limitations for a conventional drain field, so obtain a site evaluation before choosing a house location or septic design21.
Can you live in an RV or tiny home on your land in Polk County?
Unincorporated Polk County does not use general zoning to prohibit tiny-home occupancy or temporary camping, but the development, septic and floodplain rules still apply to the site2414. A privately operated RV park accommodating two or more RVs for dwelling or sleeping requires an approved infrastructure development plan before construction and a Certificate of Compliance before utilities connect10. An unincorporated manufactured-home rental community offering two or more rented spaces for manufactured homes or tiny homes has a similar approval process11. Polk County caps qualifying RV parks at 10 units per acre10. For a single RV or tiny home, describe the proposed utilities, wastewater arrangement and duration of use to the Permits Department before buying, because the park rules do not answer every parcel-specific servicing question103.
Building a home in Polk County: the steps, in order
Confirm that the parcel is outside city limits and ask the Permits Department whether it lies in a floodplain; floodplain construction needs an Elevation Certificate before permits can be purchased416.
Check whether a recent division of the tract required an approved and recorded subdivision plat17.
Arrange the septic site evaluation and submit the OSSF plan; use the 10-acre form only when the first-home exemption actually applies39.
Apply for the development and septic permits together, and budget $150 for residential development plus $300 for a new residential septic permit unless the septic exemption applies413.
If access crosses a county road right-of-way, obtain the precinct commissioner's driveway or culvert authorization before construction22.
Keep the septic installation uncovered until inspection and keep the development permit within its two-year validity period204.
What should you check before buying land in Polk County?
Check flood status first because floodplain construction requires an Elevation Certificate before county permits can be purchased4. Verify that the tract was lawfully divided and that recorded access and utility easements match what the seller promises17. If the parcel will use a well, every well in the Lower Trinity Groundwater Conservation District must be registered before drilling, even when the well qualifies for a permit exemption23. Test the proposed septic area early because only 12.5% of Polk County soils lack severe limitations for a conventional drain field21. Polk County is 78.3% wooded and receives about 53.6 inches of precipitation annually, so include clearing, drainage and all-weather access in the site budget2425. Finally, ask the Permits Department whether any certificate is required before occupancy, because the county's published materials do not confirm a general certificate-of-occupancy rule816.
Watch-outs
The 10-acre first-home exception waives only the purchase of an OSSF permit when all county conditions are met; it does not waive septic standards or the development permit194.
New commercial buildings in unincorporated Polk County require fire and life-safety inspection, while the published rule does not establish a general residential inspection program8.
Polk County has not published a general certificate-of-occupancy answer in the materials reviewed, so ask the Permits Department before planning a move-in date16.
Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.
Polk County highlighted among the Texas counties · colored by Index score
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%Soils rated "not limited" for septic (strict USDA rating)
Each button opens a current land search for Polk County. Listing sites control their own results and filters.
Analyze a property
Add setup-cost allowances
Use rough quotes or placeholders. Blank fields count as $0.
Working estimate
—land + entered setup costs
Asking $ / acre
—
Setup allowance
—
All-in $ / acre
—
A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.
Before an offer
Parcel due diligence
0/8 checked
Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.
Cities and towns in Polk County
Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.
Not yet researched: Town of Corrigan · Goodrich · Seven Oaks
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 permitLimited
Residential development and construction or additions involving man-made structures in Polk County outside incorporated city limits.
A development permit must be obtained before building or adding any man-made structure or adding onto an existing structure.
An Elevation Certificate is required before purchasing permits when building in the floodplain.
The permit is valid for two years from the date of purchase.
Within the Corrigan, Livingston, Onalaska, or Goodrich city limits, the county page directs applicants to the applicable city for the development permit.
permit validity: 2 years
“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.”
Owner-builder exemptionConditional
The first residential home or structure on a single deeded tract of land in Polk County, Texas, regarding the county OSSF permit requirement. This is a conditional OSSF permit exemption, not a general owner-builder exemption.
The tract must be a single deeded tract of land of 10 acres or larger.
The exemption applies only to the first home or first residential structure on the tract.
The owner must still install a septic system that meets or exceeds minimum state standards.
A 10 Acre Exemption Form must be filed.
An OSSF permit is required for each additional home or residential structure placed on the same tract.
For tracts smaller than 10 acres, an OSSF permit must always be purchased before installing a septic system.
Polk County states that all OSSF plans must be submitted to the Permits Department for approval.
The page states that the applicable fee schedule was approved June 25, 2024, and became effective October 1, 2024.
minimum tract area: >= 10 acres (The exemption does not apply to tracts smaller than 10 acres.) · residential structures on tract: 1 first structure (Each additional home requires an OSSF permit.)
“the first home on a single deeded tract of land 10 acres or larger, you do not have to purchase an OSSF permit”
One more reviewed finding on this topic
Conditional — The first home on a single deeded tract of land 10 acres or larger, for purposes of the Polk County OSSF permit requirement.
“If you are the first home on a single deeded tract of land 10 acres or larger, you do not have to purchase an OSSF permit, but you are still required to install a septic system that meets or exceeds minimum state standards and file a 10 Acre Exemption Form. An OSSF permit is required for each additional home placed on the tract of land. If you have less than 10 acres, you must always purchase an OSSF permit before installing a septic system”
Building code adoptedPartial
Commercial buildings and structures subject to Polk County's Industrial High-Load Facility Site Impact Permit Policy.
The policy states that Polk County has adopted NFPA 101 Life Safety Code and applicable NFPA Fire and Life Safety Codes under Texas Local Government Code § 240.002.
Applicants must contact the Polk County Fire Marshal before application submittal to confirm the currently adopted edition and local amendments.
Covered commercial buildings and structures are subject to Fire Marshal or designated-official inspection following construction and before occupancy or operation, as applicable.
The policy document's effective-date field is blank, and the accompanying notice describes a proposal to adopt the policy; no general countywide residential building-code adoption was established.
Nothing in the policy is construed as zoning or land-use regulation.
“Pursuant to its authority under Texas Local Government Code § 240.002, Polk County has adopted the NFPA 101 Life Safety Code (current edition as adopted by the County) and applicable NFPA Fire and Life Safety Codes. Applicants shall contact the Polk County Fire Marshal prior to application submittal to confirm the currently adopted edition and any local amendments. All commercial buildings and structures subject to this policy shall comply with the adopted codes and shall be subject to inspection by the Fire Marshal or designated official following construction and prior to occupancy or operation, as applicable.”
One more reviewed finding on this topic
Partial — 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.
“Note: All new commercial buildings constructed must be inspected and comply with NFPA 101 - 2021 edition and NFPA 1 Fire Life Safety Codes.”
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.”
Zoning districts · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
Minimum dwelling size · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
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).”
Setbacks · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
Lot coverage · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
Building height · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
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.”
Camping on your land · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
Tiny homes · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
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.”
Accessory dwellings · by state lawNo county rule
Unincorporated Polk County: no county rule sets this, because Polk County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). 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.”
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.”
Septic permitLimited
On-site sewage facilities and septic systems in Polk County areas administered by the Polk County Permits Department.
Polk County enforces state standards for installation or modification of an on-site septic system.
All OSSF plans must be submitted to the Polk County Permits Department for approval.
For the first residential structure on a tract or parcel of 10 acres or more, Polk County states that the OSSF permit fee is waived; the county FAQ states that the first home on a single deeded tract of land 10 acres or larger does not have to purchase an OSSF permit, but a septic system meeting or exceeding minimum state standards must still be installed and a 10 Acre Exemption Form filed.
An OSSF permit is required for each additional residential structure or home on the same tract or parcel.
If the property has less than 10 acres, Polk County states that an OSSF permit must always be purchased before installing a septic system.
The state 10-acre exemption requires compliance with all other planning, construction, and installation requirements, including 30 TAC Chapter 285; a site evaluation by a TCEQ-licensed Site Evaluator or Professional Engineer; service to a single-family dwelling on a tract of at least 10 acres that is not required to have a permit from the local permitting authority; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; effluent disposal on the property; and the single-family dwelling being the only dwelling on the tract.
A site and soil evaluation must be reviewed by the Polk County Designated Representative before installation, and the system must be inspected again before being covered.
Where a permit is required, TCEQ states that a permit and approved plan are required to construct, alter, repair, extend, or operate an OSSF.
If the property is within 2,000 feet of Lake Livingston, the Polk County FAQ directs the applicant to the Trinity River Authority for an on-site septic permit.
The Polk County permit page lists residential septic-system fees of $300, residential repair fees of $150, and a $15 maintenance-contract processing fee.
The permit page states that the fee schedule was approved by Commissioners Court on July 28, 2026, and is effective October 1, 2026.
minimum tract area for county 10-acre exemption: >= 10 acres (First residential structure or first home only; all state conditions still apply.) · minimum OSSF setback from property line under state 10-acre rule: >= 100 feet (Applies to all parts of the OSSF.) · Lake Livingston permitting threshold: <= 2000 feet (Properties within this distance are directed to the Trinity River Authority for an on-site septic permit.) · residential septic-system permit fee: 300 USD (Fee schedule effective October 1, 2026.) · residential septic repair fee: 150 USD (Fee schedule effective October 1, 2026.) · maintenance contract processing fee: 15 USD (Fee schedule effective October 1, 2026.)
“The OSSF permit fee is waived for the first residential structure if the tract/parcel is 10 acres or more.”
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.”
Off-grid sanitationLimited
Private on-site wastewater sanitation using an OSSF or septic system in Polk County areas administered by the Polk County Permits Department.
Off-grid sanitation is not unrestricted: Polk County requires OSSF plans to be submitted to the Permits Department for approval and enforces state installation standards.
A compliant septic system remains required even when the first-home, 10-acre OSSF permit exemption applies.
The 10-acre exemption is limited to a single-family dwelling on a tract of at least 10 acres, requires a qualifying site evaluation, requires no nuisance or groundwater pollution, requires all OSSF parts to be at least 100 feet from the property line, requires effluent disposal on the property, and requires that the single-family dwelling be the only dwelling on the tract.
Additional homes or residential structures on the same tract require an OSSF permit.
A tract under 10 acres requires an OSSF permit before septic installation under the county FAQ.
The site and soil evaluation must be prepared by a TCEQ-licensed Site & Soil Evaluator, Registered Sanitarian, or Professional Engineer, reviewed by the Polk County Designated Representative before installation, and followed by inspection before the system is covered.
Properties within 2,000 feet of Lake Livingston are directed by the county to obtain an on-site septic permit from the Trinity River Authority.
The applicable permitting authority may impose requirements more stringent than state minimums.
minimum OSSF setback from property line: >= 100 feet (State 10-acre exemption condition.) · minimum tract area for first-home exemption: >= 10 acres (The exemption does not eliminate the requirement for a compliant septic system.) · Lake Livingston permitting threshold: <= 2000 feet (Within this distance, the county directs applicants to the Trinity River Authority.)
“A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.”
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:”
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.”
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.”
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.”
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.”
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”
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.”
County-wide zoningAbsent
Texas counties lack general zoning authority in unincorporated areas; the county permits page addresses only development/OSSF permitting, not zoning districts.
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.”
One more reviewed finding on this topic
Limited — County zoning authority over unincorporated land in Texas, where a specific statutory grant applies.
“As you suggest, a county has very limited and specific zoning authority, and none that may be used to regulate construction or operation of the proposed facility.”
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.”
One more reviewed finding on this topic
Limited — County fire-code adoption and building-permit authority for specified buildings in unincorporated areas of qualifying Texas counties, including multifamily residential dwellings of four or more units.
“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.”
Inside cities and towns in Polk County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Local zoningPresent (with conditions)
Land within the corporate limits of the City of Corrigan, Polk County, Texas.
The City of Corrigan is the rule-maker for this municipal zoning chapter.
Polk County's permits page separately directs persons within Corrigan city limits to obtain development permits from Corrigan City Hall.
“If you reside within the Corrigan City Limits, obtain your development permit by calling Corrigan City Hall at 936-398-4126. If you reside within the Livingston City Limits, obtain your development permit by calling Livingston City Hall at 936-327-4311. If you reside within the Onalaska City Limits, obtain your development permit by calling Onalaska City Hall at 936-646-5376. If you reside within the Goodrich City Limits, obtain your development permit by calling Goodrich City Hall at 936-365-2228.”
One more reviewed finding on this topic
Present (with conditions) — Zoning administration within the City of Goodrich, Polk County, Texas.
“The Planning & Zoning Commission reviews proposed amendments to zoning ordinances, site plans and plat applications, and also makes recommendations to the Council regarding the current and future development of the City of Goodrich.”
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 or equivalent certificates of compliance for buildings in Polk County.
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 requires a building permit only in limited cases (such as floodplains or specific zones), 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.
