Bolthole Index

Coryell County, Texas

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

63Index Score / 100
#77 of 254 in Texas

Unincorporated Coryell County, Texas does not require a county building permit for an ordinary home1. County subdivision approval and driveway permits can still apply, while municipal zoning is handled by the relevant city23. Septic permits in unincorporated Coryell County come from the county OSSF Office regardless of tract size, including for off-grid sewage systems45.

At a glance

Building permit
Not required in unincorporated areas1
Zoning
No county zoning ordinance; subdivision controls and municipal zoning are separate62
Septic permits
Coryell County OSSF Office; required for all systems regardless of tract size4
RV / tiny home sanitation
Off-grid sewage systems remain subject to OSSF permitting and inspection5
Subdivision approval
Commissioners Court reviews applications case by case unless exempt7
Owner-builder (industrialized housing)
Available via TDLR's Residential Installation Permit for a homeowner installing their own industrialized home8
Dividing land
County rules apply outside city limits; the rural-tract exemption requires every tract to exceed 10 acres and no public-use layout9

Who to call

Also useful

Coryell County Judge / Commissioners Court

General Coryell County government contact; the Commissioners Court sets county policy, since there is no separate building or zoning department

(254) 865-5911

620 E Main St, Gatesville, TX 76528

Septic permits

Coryell County OSSF Office (County Septic / OSSF Representative)

Permits and inspects all on-site sewage facility (OSSF/septic) construction, alteration, extension, or repair countywide, regardless of tract size; also handles floodplain development-permit applications

254-213-6601

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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

Unincorporated Coryell County does not require a county building permit to build an ordinary home1. Owner-installed industrialized housing is different: the homeowner must file a Residential Installation Permit with TDLR, separate from any local building permit10. Texas counties have limited fire-code authority over certain commercial, public and larger multifamily buildings; that authority does not create a general county building permit for an ordinary single-family home here11. County subdivision approval, septic permits and county-road driveway permits remain separate requirements743.

Who handles building and development approval in Coryell County?

For county building-permit questions, contact the County Judge / Commissioners Court at 620 E Main St, Gatesville, TX 76528, phone (254) 865-591112. For septic permits, call the County OSSF Office at 254-213-660113. A developer dividing land outside city limits must submit a compliant subdivision application to the Commissioners Court unless an exemption applies; applications are reviewed case by case and each may name only one subdivision7. Coryell County publishes a Subdivision Development Fees document through Development and Permitting, but we could not confirm the fee amounts; ask that department for the current schedule14.

Does Coryell County have zoning?

Unincorporated Coryell County has no county zoning ordinance6. County zoning therefore sets no minimum dwelling size, minimum lot size, lot coverage, building height, or occupancy restriction for RVs, tiny homes, manufactured homes, accessory dwellings or temporary camping on unincorporated land15. That does not remove county subdivision controls or municipal zoning2. McGregor, mainly in McLennan County but reaching into Coryell County, sets its own zoning inside city limits16. The Coryell County OSSF Office serves unincorporated land and cities with county contracts; ask the city which septic authority serves an incorporated parcel17. For a subdivision lot fronting a TxDOT-maintained road because no interior street is feasible, the minimum building setback is 50 feet, driveway spacing is 250 feet, and TxDOT approves driveway location18.

How do septic (OSSF) permits work in Coryell County?

On-site sewage facilities in unincorporated Coryell County need county OSSF permits regardless of tract size, except systems grandfathered because they were installed before September 1, 19894. Construction, alteration, extension and repair also require inspection by a TCEQ-certified OSSF inspector19. Going off-grid does not exempt an on-site sewage facility from these requirements5. Coryell County’s rule is stricter than the conditional statewide 10-acre exemption, so acreage alone does not waive county OSSF approval204. The county rules exclude incorporated cities without an intergovernmental contract and areas regulated under an existing rule; confirm jurisdiction with the County OSSF Office before applying17.

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

For an RV or tiny-home project on unincorporated Coryell County land, plan the wastewater system before relying on an off-grid setup: an on-site sewage facility remains subject to county permitting and inspection regardless of tract size5. We could not confirm a countywide requirement to connect to public water or sewer; ask Development and Permitting and the serving utility about the parcel’s connection requirements7. A homeowner installing industrialized housing for personal use may use TDLR’s Residential Installation Permit, but must identify and accept responsibility for the work, provide notarized certification, follow the required plans and instructions, and pay the $75 non-refundable fee8.

What are the steps to build a home in Coryell County?

  1. Establish whether the parcel is unincorporated; municipal zoning and county subdivision controls have different jurisdictions2.
  2. Confirm septic jurisdiction with the County OSSF Office and obtain OSSF approval before installing an off-grid sewage system175.
  3. If dividing land outside city limits, submit a subdivision application to the Commissioners Court unless exempt; changes to existing subdivisions must also comply7.
  4. For access to a county-maintained road, apply for a driveway permit; even a division exempt from platting must meet the applicable 60-foot lot frontage and 200-foot driveway-spacing requirements unless an exception is granted3.
  5. For owner-installed industrialized housing, file TDLR’s Residential Installation Permit and pay the $75 non-refundable fee8.
  6. For the first installation of an industrialized home, arrange foundation, set and final inspections with a Council-approved inspector; the final inspection is due within 180 days after construction starts21.

What should you check before buying land in Coryell County?

Water and soils deserve close attention here: Coryell County gets about 35 inches of rain a year but experiences severe drought roughly 31% of years, and only about 9% of its soils are rated “not limited” for a conventional septic drain field222324. A low soil rating does not mean septic is impossible, but makes a site evaluation and potentially an engineered system central to the purchase decision24. About 92% of the land has a slope of 15% or less, about 28% is wooded, and nearly 23% is federal land, so verify access and neighboring ownership for the parcel itself252627. Coryell County has about 81 people per square mile and roughly 84,900 residents; the nearest city of 100,000 or more is about 22 miles from the county's center282930. The effective property-tax rate is about 1.4%, with a median annual bill of $2,5093132. Before closing, confirm septic feasibility with the County OSSF Office and any subdivision fees, setback, or driveway conditions that affect the parcel131418.

Watch-outs

  • Coryell County’s rural-tract subdivision exemption requires every divided tract to exceed 10 acres and no public-use layout; acreage alone is not the full test7.
  • Off-grid OSSF sanitation still needs county permitting and inspection regardless of tract size, subject to grandfathering and jurisdiction exclusions5.
  • An exempt land division can still need a county-road driveway permit with drainage documentation, frontage and driveway-spacing requirements3.
  • If a subdivision lot fronts a TxDOT-maintained road with no interior street option, plan for a 50-foot building setback and TxDOT driveway-location approval18.

Sources

  1. Bexar County, TX - County authority to require building permits (Texas law) (2026 county census)
  2. Development and Permitting Department, quoted and re-checked
  3. Subdivision Regulations and Permitting Requirements Approved 6-8-2021, quoted and re-checked
  4. Coryell County OSSF Office, quoted and re-checked
  5. Coryell County OSSF Office, quoted and re-checked
  6. Bexar County, TX - How is my property zoned in the County (Texas law) (2026 county census)
  7. Development and Permitting Department, quoted and re-checked
  8. IHB Residential Installation Permit Application Instructions, quoted and re-checked
  9. Development and Permitting Department, quoted and re-checked
  10. IHB Residential Installation Permit Application Instructions, quoted and re-checked
  11. Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
  12. Coryell County Judge / Commissioners Court (coryellcounty.org)
  13. Coryell County OSSF Office (County Septic / OSSF Representative) (coryellcounty.org)
  14. Development and Permitting Department, quoted and re-checked
  15. Texas law on county zoning and building authority
  16. McGregor: Ordinance No. O-11-2023 (Coryell County), quoted and re-checked
  17. Order Adopting Rules of Coryell County, Texas for On-Site Sewage Facilities, quoted and re-checked
  18. Coryell County Subdivision Regulations and Permitting Requirements, quoted and re-checked
  19. Coryell County OSSF Office, quoted and re-checked
  20. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  21. Building Site Inspection Program, quoted and re-checked
  22. Annual precipitation: Bolthole Index county data
  23. Share of years in severe drought: Bolthole Index county data
  24. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  25. Share of land at 15% slope or less: Bolthole Index county data
  26. Wooded share of land: Bolthole Index county data
  27. Federal land share: Bolthole Index county data
  28. Population density: Bolthole Index county data
  29. County population: Bolthole Index county data
  30. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data
  31. Effective property tax rate: Bolthole Index county data
  32. Median property tax bill: Bolthole Index county data

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Coryell County has no countywide zoning.

RuleCoryell CountyLampasas CountyBell CountyHamilton CountyBosque CountyMcLennan CountyMills County
Building permitNot requiredNot requiredNot requiredNot requiredLimitedLimitedLimited
County zoningNoNoNoNoNoNoNo
Septic permitsCounty OSSF OfficeCounty OSSF ProgramCounty Public Health DistrictHamilton CountyCounty Env. OfficeWaco-McLennan County Public Health DistrictCounty OSSF program

County locator

Coryell County in Texas

63
County map
Coryell County highlighted among the Texas counties · colored by Index score

How Coryell County scores

Seclusion42100% ev.
Self-Sufficiency42100% ev.
Admin Boringness87100% ev.
Durability53100% ev.
Property Autonomy71100% ev.
Carry Cost77100% 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 →

$228kTypical home
1.4%Property tax
$3,621Land / acre
34.8"Annual rain
30.5% of yrsSevere drought
43.6 / yr (+28.3)Mid-century 100°F days
27 daysMid-century dry spell
2.19" (+5.6%)Mid-century 1-day rain
1.39×Wildfire change factor
100%Forward climate coverage
$1,820Home insurance / yr
2.5% / yrInsurance growth
0%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
23,890People within 30 min
3,720,761People within 2 hr
23,270Radius comparison (15 mi)
80.7People / sq mi
22.7%Federal land
92.1%Land at 15% slope or less
9.3%Soils rated "not limited" for septic (strict USDA rating)
60,731 acWorkable land screen
27.5%Wooded land
16.6 tonsBiomass / forest ac
66.4°FAvg temp

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Cities and towns in Coryell 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 Evant · Oglesby · Town of South Mountain

Answers from the rulebook for Coryell County

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

Coryell County rules

  • Local zoningVaries (with conditions)

    Aggregate local land-use controls across Coryell County, including county-administered subdivision regulations and municipality-administered zoning within incorporated municipalities.

    • Coryell County's cited regulations apply to covered subdivisions dividing land into two or more parts to lay out subdivisions, lots, or streets and similar public-use areas.
    • The county regulations state that a covered division includes transfers by metes and bounds, descriptions of less than the whole tract, deeds, executory contracts, or other title-transfer methods, and applies whether or not ownership changes.
    • Municipal zoning is administered by the relevant municipality within its jurisdiction; the county should not be treated as administering municipal zoning.
    “REGULATING THE FILING FOR RECORD OF SUBDIVISION PLATS AND OTHER REQUIREMENTS PERTINENT THERETO AND ESTABLISHING CONSTRUCTION STANDARDS FOR ALL SUBDIVISIONS SITUATED OUTSIDE THE BOUNDARIES OF ANY INCORPORATED CITY IN CORYELL COUNTY, TEXAS.”
  • Zoning districts · by state lawNo county rule

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

    • 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 Coryell County: no county rule sets this, because Coryell 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 bexar.org.

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

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

    • 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.”
  • SetbacksSpecified

    Residential lots in Coryell County subdivisions fronting existing roads maintained by TxDOT when no alternative exists to construct an interior street

    • Residential lots may not be platted fronting proposed arterials.
    • Residential lots fronting existing TxDOT-maintained roads are discouraged and will not be approved unless extenuating circumstances preclude construction of an interior street.
    • The 50-foot minimum building setback applies where no alternative exists and lots are platted with at least 250 feet between driveway openings.
    • Final approval of driveway locations rests with TxDOT, and some locations may not be approved because of sight distance.

    minimum building setback: >= 50 feet (Applies where no alternative exists and the lots maintain a minimum 250 feet between driveway openings.) · minimum distance between driveway openings: >= 250 feet (Applies where no alternative exists for an interior street.)

    “minimum building setback shall be established at 50 feet.”
  • Lot coverage · by state lawNo county rule

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

    • 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 Coryell County: no county rule sets this, because Coryell 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 bexar.org.

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

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

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

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

    • 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 Coryell County: no county rule sets this, because Coryell 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 bexar.org.

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

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

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

    Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org.

    • 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 unincorporated Coryell County and incorporated cities or towns that have executed an intergovernmental contract with Coryell County.

    • The county rules exclude areas regulated under an existing rule.
    • The county rules exclude incorporated cities unless the city or town has executed an intergovernmental contract with Coryell County.
    “The Rules shall apply to all the area lying in Coryell County, Texas”
  • Septic permitRequired

    Construction, alteration, extension, or repair of on-site sewage facilities within Coryell County's OSSF jurisdiction.

    • The requirement applies regardless of tract size.
    • An OSSF permit is required for all systems unless the system was grandfathered because it was installed before September 1, 1989.
    • The county rules exclude incorporated cities unless they have executed intergovernmental contracts with Coryell County.
    • Areas regulated under an existing rule are excluded.
    “An OSSF Permit is required for all systems unless it was ‘Grandfathered’”
  • Septic inspectionRequired

    Construction, alteration, extension, or repair of on-site sewage facilities within Coryell County's OSSF jurisdiction.

    • Inspection is required regardless of tract size.
    • The county rules exclude incorporated cities unless they have executed intergovernmental contracts with Coryell County.
    • Areas regulated under an existing rule are excluded.
    • The OSSF Inspector must be certified by the Texas Commission on Environmental Quality.
    “shall be permitted and inspected, regardless of the size of the tract of land.”
  • Off-grid sanitationLimited

    Use of on-site sewage facilities as off-grid sanitation in Coryell County's OSSF jurisdiction.

    • Off-grid sanitation using an on-site sewage facility is subject to county permitting and inspection.
    • Requirements apply regardless of tract size.
    • An OSSF permit is required for all systems unless grandfathered because installed before September 1, 1989.
    • Incorporated cities are excluded unless they have executed intergovernmental contracts with Coryell County.
    • Areas regulated under an existing rule are excluded.
    “Any permit issued for an on-site sewage facility [...] must comply with the Rules”
  • Subdividing landRegulated (with conditions)

    Subdivision of land situated outside the boundaries of any incorporated city in Coryell County that divides a tract into two or more parts to lay out a subdivision, lots, or streets, alleys, squares, parks, or other areas intended for public use or use by purchasers or owners of lots.

    • The Coryell County Commissioners Court regulates subdivision plat filing and construction standards for subdivisions outside incorporated cities.
    • The regulations apply to divisions regardless of whether title is transferred by metes and bounds, another less-than-whole-tract description, deed, executory contract, or another method, and regardless of whether ownership changes.
    • A developer must present an application to the Commissioners Court for approval unless the subdivision is exempt by state law, the regulations, or a discretionary exemption; unless otherwise exempt, land may not be sold or conveyed until application approval and filing of an approved plat with the Coryell County Clerk's Office.
    • A subdivision in a municipality's extraterritorial jurisdiction must also comply with applicable municipal regulations and applicable interlocal agreements.
    • Agricultural-tr tract exemptions require no public-use layout and primarily agricultural, farm, ranch, wildlife-management, or timber-production use; the regulations apply if that use ceases.
    • Family-tract exemptions require four or fewer parts, no public-use layout, and transfer to persons related to the owner within the third degree; the regulations apply if a part is transferred within two years to a person not so related.
    • Rural-home-tract exemptions require every divided tract to exceed 10 acres and no public-use layout.
    • Veterans' Land Board exemptions require no public-use layout and sale of all lots to veterans through the Veterans' Land Board program.
    • Public-entity exemptions generally require state or qualifying state-fund ownership and do not apply where the subdivision lays out areas for public use or use by purchasers or lot owners.
    • Public-floodplain-tract exemptions require ownership by a political subdivision, location in a floodplain, and sale of all divided tracts to adjoining landowners.
    • Future-development-tract exemptions require no public-use layout, retention of one new part by the owner, and transfer of the other new part to a developer who will further subdivide it subject to these regulations.
    • Partitioned-tract exemptions require no public-use layout and transfer of all parts to persons who owned an undivided interest in the original tract; further development must comply with the regulations.
    • Tier 2 development is limited to not more than four lots or tracts, each with direct frontage or side-access to an existing publicly maintained road or highway, with no proposed internal public-use areas; residential Tier 2 developments require specified plat, water/sewage, setback, utility-easement, culvert, drainage, mailbox, and OSSF documentation.
    • For Tier 2 residential development, culverts must have a minimum length of 24 feet, with diameter determined by the Road and Bridge Administrator based on site topography.
    • Lots of 10 acres or less are presumed residential unless restricted to nonresidential uses on the plat and all instruments of conveyance.
    • For a division otherwise not requiring a plat that accesses a county-maintained roadway, driveway permitting still requires, among other items, 60 feet of frontage per lot and driveways at least 200 feet apart, except where an exception is granted.

    minimum parts triggering general applicability: >= 2 parts (subject to listed exemptions) · maximum family-tract exemption parts: <= 4 parts (also requires no public-use layout and qualifying family transfers) · minimum rural-home-tract exemption area: > 10 acres (all divided tracts must exceed 10 acres and no public-use layout) · maximum Tier 2 lots or tracts: <= 4 lots or tracts (each must have direct frontage or side-access to an existing publicly maintained road or highway) · minimum Tier 2 residential culvert length: >= 24 feet (diameter determined by Road and Bridge Administrator) · minimum frontage for otherwise exempt division accessing county road: >= 60 feet per lot (applies to driveway permit process) · minimum driveway separation for otherwise exempt division accessing county road: >= 200 feet (except where an exception is granted)

    “REGULATING THE FILING FOR RECORD OF SUBDIVISION PLATS AND OTHER REQUIREMENTS PERTINENT THERETO AND ESTABLISHING CONSTRUCTION STANDARDS FOR ALL SUBDIVISIONS SITUATED OUTSIDE THE BOUNDARIES OF ANY INCORPORATED CITY IN CORYELL COUNTY, TEXAS.”
  • Driveway accessRequired

    Development in unincorporated Coryell County that accesses a county-maintained roadway and connects from that roadway onto private property.

    • The cited subdivision regulations are expressly limited to subdivisions outside incorporated city boundaries.
    • Sufficient right of way is required to install a culvert and maintain adequate drainage.
    • Additional right of way may be required before permit issuance when, in the Road and Bridge Administrator's opinion, it is necessary.
    • For a divided tract that otherwise does not require a plat, a property plat, drainage information, drainage report, and completed permit application are required before issuance.
    • A drainage easement may be required.
    • A development fee is required when proposed development adversely affects existing county-maintained drainage structures or requires relocation of existing utilities; the fee is set by the Road and Bridge Administrator and disputes are heard by the Commissioners Court.
    • Additional county-required right of way must be conveyed by Warranty Deed or Grant of Right of Way.

    minimum lot frontage on existing county-maintained roadway: >= 60 feet · minimum driveway separation: >= 200 feet (except where an exception is granted)

    “Driveway permits are required for any access from a County maintained roadway onto private property.”
  • Permit feesPublished (with conditions)

    Subdivision development fees administered by Coryell County.

    • The county's official Development and Permitting Department page lists a document titled "Subdivision Development Fees.pdf" under Forms and Notices.
    • The source page does not expose the fee amounts in text, so no numeric fee amount is asserted.
    “Forms and Notices ▲ MHRC Infrastructure Requirements.pdf Road Closure Fence row permit.pdf Driveway Permit.pdf Subdivision Regulations and Permitting Requirements Approved 6-8-2021.pdf Tier 1 Checklist.pdf Tier 2 Checklist.pdf Subdivision Application.pdf Subdivision Development Fees.pdf”
  • Permit processPublished (with conditions)

    Published subdivision plat filing, subdivision approval, and related permitting requirements for subdivisions situated outside incorporated city boundaries in Coryell County.

    • The regulations expressly apply to subdivisions situated outside the boundaries of incorporated cities in Coryell County.
    • Applications for subdivision approval are processed case-by-case and each application may name only one subdivision.
    • The regulations contain exemptions, including specified rural-tr tract divisions where all divided tracts exceed 10 acres and no part is laid out for public-use streets or similar facilities.
    • The regulations apply to subdivisions made after their effective date; existing subdivisions that are modified, expanded, altered, or otherwise changed must comply.
    “A developer must present an application in compliance with these regulations to the Commissioners Court for approval, unless the subdivision is exempt by state law, these regulations, or by an act of the Commissioners Court in response to a request for a discretionary exemption.”
  • County-wide zoningAbsent

    Texas counties generally have no zoning authority in unincorporated areas; Coryell County uses subdivision and OSSF rules rather than zoning.

    Bexar County, TX - How is my property zoned in the County (Texas law) ↗Scouted from the county site, not yet independently re-checked

Texas rules that apply here

  • Building permitLimited

    Industrialized housing installed in Coryell County and elsewhere in Texas, where the homeowner performs installation-related construction under the Texas Industrialized Housing and Buildings program.

    • The homeowner must file the Residential Installation Permit with TDLR.
    • The permit applies to industrialized housing or residential modular components and is not the same as a local building permit.
    • Local permits remain required where applicable, including within a city or municipality.

    registration fee: 75 USD (non-refundable)

    “The Residential Installation Permit only allows you, the homeowner, to complete this construction yourself without registering as an industrialized builder. Local permits are still required to be obtained and inspections of the construction will be performed by the local building inspection office (if within the jurisdiction of a city or municipality).”
    One more reviewed finding on this topic
    • Limited — Industrialized housing or buildings installed in Texas, including purchasers or lessees acquiring a unit for their own or their company’s use.
      “A person who is a retailer of industrialized housing or buildings, or who is responsible for the assembly, connection, and on-site construction and erection of an industrialized house or building for persons other than themselves, must be registered as an industrialized builder. Subcontractors do not require the registration unless required by other applicable state laws. For example, electricians, HVAC contractors, and plumbers must be licensed in accordance with the applicable state law. If you are purchasing or leasing an industrialized house or building for your own use, or your company's use, you may file for an installation permit in lieu of registering as an industrialized builder.”
  • Owner-builder exemptionAvailable (with conditions)

    A homeowner purchasing industrialized housing or residential modular components for the homeowner's own use and responsible for installation-related construction, including in Coryell County.

    • The homeowner must apply for the TDLR Residential Installation Permit.
    • The homeowner must identify the construction covered by the permit and certify responsibility for that construction.
    • The certification must be notarized.
    • Construction must comply with mandatory building codes, engineered foundation drawings, engineered unique on-site construction details, and manufacturer-approved installation instructions.
    • The homeowner must pay the $75 non-refundable registration fee.
    • Local permits and inspections remain applicable where required.

    registration fee: 75 USD (non-refundable)

    “If you are purchasing the house for your own use (you will live there), then you will need to file an application for a residential installation permit with the Department.”
    2 more reviewed findings on this topic
    • Conditional — An owner performing electrical, plumbing, or air-conditioning and refrigeration work on the owner's own residence or homestead in Texas.
      “A person who perform electrical work on a dwelling that they own and reside in is not required by the state to be licensed as electricians.”
    • Conditional — Electrical work on a dwelling owned and occupied by the property owner in Texas.
      “A person who perform electrical work on a dwelling that they own and reside in is not required by the state to be licensed”
  • Building code adoptedPartial

    Industrialized housing and buildings, modules, and modular components governed by the Texas Industrialized Housing and Buildings program.

    • The mandatory state code adoption applies to industrialized housing and buildings, modules, and modular components, not all construction statewide.
    • The effective date is July 1, 2024.
    • The International Existing Building Code applies to alterations of portable industrialized buildings.
    • Manufacturers already certified for Texas must have design-package documents reviewed and approved to the new editions with an approval date on or after July 1, 2024, unless the manufacturer elected to transition before the effective date under Department rule 70.70(a)(5)(B).
    • Construction begun on or after July 1, 2024 must comply with the new code editions and approved design packages.
    • Construction begun before July 1, 2024, or before a manufacturer's effective transition date, must meet the stated completion, inspection, and labeling deadline to remain eligible for a Texas decal.

    effective date: 2024-07-01 · International Building Code: 2021 Edition (including appendices C, F, and K) · International Residential Code: 2021 Edition (including appendices AG, AH, AK, AP, AQ, and AT) · International Fuel Gas Code: 2021 Edition · International Mechanical Code: 2021 Edition · International Plumbing Code: 2021 Edition · International Energy Conservation Code: 2015 Edition · National Electrical Code: 2020 Edition · International Existing Building Code: 2021 Edition (for alterations of portable industrialized buildings)

    “July 1, 2024, all industrialized housing and buildings, modules, and modular components shall comply with the following codes, as amended in §70.101 of the IHB Rules:”
    One more reviewed finding on this topic
    • Partial — Industrialized housing and buildings, modules, and modular components built for Texas under the Industrialized Housing and Buildings program.
      “Effective July 1, 2024, all industrialized housing and buildings, modules, and modular components shall comply with the following codes, as amended in §70.101 of the IHB Rules:”
  • InspectionsRequired

    First installation of industrialized housing and permanent industrialized buildings outside a municipality or within a municipality without a building-inspection department, including applicable installations in Coryell County.

    • The rule applies to the first installation of all industrialized housing and permanent industrialized buildings.
    • Inspections are performed by a Council-approved inspector, including an approved third-party inspector, inspection agency, licensed engineer, or licensed architect.
    • Minimum inspection phases include foundation, set inspection, and final inspection.
    • The final inspection must be completed within 180 days of the start of construction unless TDLR grants an extension for justifiable cause.
    • The source states an exception for unoccupied industrialized buildings not open to the public, such as communication equipment shelters, when not classified as hazardous occupancy.

    minimum inspection notice: >= 48 hours · final inspection deadline: <= 180 days (TDLR may grant an extension upon written request demonstrating justifiable cause)

    “Site inspections are required for the first installation of all industrialized housing and permanent industrialized buildings. Exception: Site inspections are not required for the installation of unoccupied industrialized buildings not open to the public, such as communication equipment shelters, that are not also classified as a hazardous occupancy by the mandatory building code.”
  • Well permitLimited

    Drilling, equipping, operating, or completing a water well, or substantially altering a well or well pump, where the well is within a groundwater conservation district in Texas.

    • A groundwater conservation district must require a permit except as provided by Texas Water Code §36.117.
    • A district may not require a permit or permit amendment for maintenance or repair that does not increase production capability above the authorized or permitted production rate.
    • Permit applications must be in writing and sworn.
    • Whether a particular private well is exempt or subject to additional district requirements depends on the applicable groundwater conservation district's rules.

    permit application form: in writing and sworn

    “Except as provided by Section 36.117, a district shall require a permit for the drilling, equipping, operating, or completing of wells or for substantially altering the size of wells or well pumps.”
  • 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.”
    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 Coryell County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Building code adoptedAdopted (with conditions)

    Building-code adoption within the City of Gatesville, a municipality located in Coryell County.

    • The cited adoption is municipal and does not establish adoption by Coryell County or applicability in unincorporated areas.
    • Building permits and inspections are administered by the City's Building Inspections and Permits Department.

    International Residential Code edition: 2021 · National Electric Code edition: 2020 · International Building Code edition: 2021 · International Existing Building Code edition: 2021 · International Fire Code edition: 2021 · International Plumbing Code edition: 2021 · International Mechanical Code edition: 2021

    “The City of Gatesville has adopted the following codes: 2021 International Residential Code (IRC) 2020 National Electric Code (NEC) 2021 International Building Code (IBC)”
  • Local zoningPresent (with conditions)

    Zoning within the corporate limits of the City of Gatesville, Coryell County, Texas.

    • Gatesville’s planning staff administers adopted zoning, land-use, and subdivision regulations.
    • The city’s zoning authority applies within the corporate limits of Gatesville.
    • Specific permitted uses and development standards depend on the applicable zoning district and city ordinance.
    “Planning Staff administers adopted zoning, land use, and subdivision regulations to ensure the orderly, safe, and responsible development of Gatesville in accordance with the city’s Comprehensive Plan.”
    3 more reviewed findings on this topic
    • Present (with conditions) — Land within the corporate limits of the City of Gatesville in Coryell County, Texas.
      “The Zoning Ordinance implements the vision of the Comprehensive Plan by regulating how land within the City is used. It establishes zoning districts and sets standards for development, including permitted uses, building requirements, density, setbacks, and other site design standards.”
    • Present (with conditions) — Land within the City of Gatesville, Texas.
      “The Zoning Ordinance implements the vision of the Comprehensive Plan by regulating how land within the City is used. It establishes zoning districts and sets standards for development, including permitted uses, building requirements, density, setbacks, and other site design standards.”
    • Present (with conditions) — Land within the City of Copperas Cove, Texas.
      “The Board of Adjustment is a Quasi-judicial board that serves as an appeal body for individuals seeking variances to the Zoning Ordinance or to a decision made by an administrative official enforcing the ordinance.”

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 ordinary residential or commercial construction in Coryell County.
  • Mandatory utility hookup — Water or sewer utility connection requirements for property in Coryell County.
  • Short-term rentals — Short-term rental use in Coryell 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.

Water rights & wells in Coryell County

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

Actively managed

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

Household wellExempt up to a limit

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

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

Texas Water Code §36.117 / TWDB ↗
  • Central Texas Trinity Aquifer Priority Groundwater Management Areapartial of county

    TCEQ-designated Trinity Aquifer critical-groundwater area; drives GCD coverage. Domestic/livestock wells remain exempt but spacing/registration may apply.

    TCEQ — Priority Groundwater Management Areas ↗

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

Living off-grid in Coryell County, Texas

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

Coryell County scores 63/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost. Watch-outs: sparse surroundings — about 23,890 people within a 30-minute drive and workable self-sufficiency basics (34.8″/yr rainfall).

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

Coryell County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Coryell County OSSF Office (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.

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

Living in an RV on your own land in Coryell County is allowed: Unincorporated Coryell County: no county rule sets this, because Coryell 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 bexar.org. Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits. Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Coryell County, Texas?

Land in Coryell County runs about $3,621 per acre, based on the latest county data.

What is the water situation in Coryell County?

Coryell County gets about 34.8" of rain a year, with severe drought in roughly 30.5% of years. On water rights, Coryell County lies in the Central Texas Trinity Aquifer Priority Groundwater Management Area — TCEQ-designated Trinity Aquifer critical-groundwater area; drives GCD coverage. Domestic/livestock wells remain exempt but spacing/registration may apply..

How remote is Coryell County?

A representative private-land location has about 23,890 people within a 30-minute drive and 3,720,761 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.

How Coryell compares in Texas

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