Bolthole Index

Limestone County, Texas

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

70Index Score / 100
#39 of 254 in Texas

Unincorporated Limestone County, Texas does not require a county building permit for an ordinary home, because Texas counties cannot adopt building codes12. Limestone County has no zoning ordinance for unincorporated land34. Septic permits are different: the county's OSSF office administers them and publishes the application process56. A floodplain permit is required if the property lies in the floodplain7.

At a glance

Building permit
Not required for an ordinary home in unincorporated Limestone County12
Zoning
No county zoning ordinance; the City of Mexia has municipal zoning348
Septic permits
Limestone County OSSF office (TCEQ authorized agent)56
OSSF permit fee
$310 for a single-family system; $510 for all other systems, including commercial and multi-family6
RV living
Unrestricted in unincorporated Limestone County9
Residential subdivision (5 acres or less)
Regulated; preliminary plat $200 + $10/lot, final plat $100 + $5/lot10
Owner-builder exemption
No county building permit to be exempt from; state trade licensing may still apply1112

Who to call

Septic permits

Limestone County OSSF / Environmental Office

OSSF (septic) permitting as TCEQ's authorized agent for Limestone County: application intake, soil and site evaluation review, plan approval, inspection scheduling and notice of approval

200 West State Street, Suite 101, Groesbeck, TX 76642

Online permits →

Floodplain permits

Limestone County Floodplain Administrator

Reviews construction, including every OSSF application, for compliance with local and federal floodplain regulations in Limestone County

(254) 729-5517

1221 E Yeagua St, Groesbeck, TX 76642

Also useful

Limestone County Judge's Office

General county administration and the Commissioners Court; the practical point of contact since Limestone County has no building or zoning department for unincorporated land

(254) 729-3810

200 W State St, Groesbeck, TX 76642

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Off-grid gear

Going off-grid in Limestone 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 Limestone County, Texas?

Unincorporated Limestone County does not require a county building permit for an ordinary residential home, because the county's own hazard mitigation plan states that only cities, not counties, can adopt building codes12. Texas county fire-code permit authority applies only in qualifying counties and covers commercial buildings, public buildings and multifamily dwellings with four or more units, not an ordinary single-family house13. Limestone County does separately regulate septic systems, floodplain development and residential subdivisions that create two or more parts of five acres or less5710. Inside the City of Mexia, municipal rules apply: Mexia has adopted building codes for construction in its jurisdiction14. We could not confirm whether the county requires residential building inspections or certificates of occupancy, so ask the County Judge's Office15.

Who handles county business in Limestone County, and how do you reach them?

Limestone County does not list a general building department on its official site, so the County Judge's Office at the courthouse in Groesbeck is the practical first call for an unincorporated parcel15. We could not confirm whether a certificate of occupancy or building inspection applies to a home, so ask that office, and ask whether any project-specific county review applies. Septic applications, site evaluations and installation inspections go through Limestone County's OSSF/Environmental office56. Every OSSF application also needs an approved floodplain determination, and the Floodplain Administrator examines construction for compliance with local and federal floodplain regulations616. The Floodplain Administrator's official page gives the office address and phone number and says a floodplain permit is required when property lies in the floodplain16.

Does Limestone County have zoning?

Limestone County has no zoning ordinance covering unincorporated land3. For unincorporated property, the county therefore sets no zoning-based minimum dwelling size, minimum lot size, setback, lot-coverage limit or building-height limit9. Deed restrictions, subdivision plats, floodplain rules and septic requirements can still constrain a particular tract. The answer changes inside the City of Mexia: every lot within the city limits is zoned, and city construction is governed by municipal building codes814. Before relying on the unincorporated rules, confirm the parcel's city-limit status and read its deed restrictions and recorded plat.

How do septic permits work in Limestone County?

Limestone County is TCEQ's own authorized agent for OSSF permitting, so the county's OSSF office, not the state, reviews and approves septic applications56. The permit fee is $310 for a single-family residential system and $510 for any other system, including commercial and multi-family installations6. Every OSSF must also have an approved floodplain determination, which you can file and pay for ($25) either before or alongside your septic application, and an aerobic system additionally needs an affidavit recorded with the County Clerk before the application is filed616. Soil conditions make this worth planning for early: only about 15% of Limestone County's land is free of severe limitations for a conventional septic drain field, so budget for a soil evaluation by a registered sanitarian, professional engineer or licensed installer, and expect many parcels to need an aerobic treatment unit rather than a standard trench field17. Texas's statewide 10-acre exemption can still apply to a qualifying single-family tract, but the county's own permit and inspection process, including a required pre-cover inspection you must schedule with the county's office, otherwise controls186.

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

In unincorporated Limestone County, county zoning does not restrict occupying an RV, tiny home or manufactured home on your own property9. That answer is limited to county zoning: deed restrictions, subdivision rules, septic requirements and floodplain rules may still affect a specific tract. Inside the City of Mexia, municipal zoning and building codes apply instead814. A tiny home built as industrialized housing must also comply with the Texas codes governing industrialized modules and components19. Plan wastewater before moving onto the land, because construction, installation, alteration, extension or repair of an OSSF generally requires a permit and approved plan18.

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

  1. Confirm whether the parcel is outside the City of Mexia; city zoning and building codes apply inside the city limits814.
  2. Ask the County Judge's Office whether floodplain review or another project-specific approval applies; an ordinary home in unincorporated Limestone County does not need a county building permit1215.
  3. Start septic planning with a site and soil evaluation, then submit the OSSF application and planning materials to the county6.
  4. Submit the floodplain application before or with the septic application because every OSSF needs an approved floodplain determination6.
  5. If the project creates two or more residential parcels of five acres or less, submit the required plats and fees through the County Engineer's office10.
  6. If access connects to a state highway, submit Form 1058 to TxDOT and wait for the executed driveway permit before building in the right of way20.
  7. Arrange the required septic installation inspection before the system is covered6.

What to check before you buy land in Limestone County

Only about 15% of Limestone County's soils are rated without severe limitations for a conventional septic drain field, so make the site evaluation an early contingency in the purchase contract17. Limestone County averages about 40 inches of precipitation a year and has experienced severe drought in about 18% of years, but those countywide figures do not establish a particular well's yield2122. Nearly all county land is at a slope of 15% or less, while roughly 23% is wooded2324. Limestone County has about 25 people per square mile, and the nearest city of 100,000 or more is about 40 miles from the county center2526. Check the survey, legal access, deed restrictions, recorded plat, flood map and utility availability before closing. A driveway connecting to a state highway requires TxDOT's access-permit process27. We could not confirm a countywide private-well permit rule, so ask a licensed driller which groundwater district, if any, covers the parcel.

Watch-outs

  • Limestone County does not publish an answer on residential building inspections or certificates of occupancy; confirm your project with the County Judge's Office15.
  • Whether a specific well on your land needs a permit depends on whether it falls inside a groundwater conservation district; no official source found in this research established a countywide Limestone County well-permit rule, so check with a local driller or with the County Judge's Office before you plan around either answer15.
  • The county's scanned OSSF instructions do not provide a reliably readable office phone number, so use the published office address or ask the County Judge's Office for the current septic contact615.
  • Limestone County's septic office is confirmed as the permitting authority for unincorporated land; we could not confirm that it also covers addresses inside incorporated cities, so ask the OSSF office which authority applies to a city parcel6.

Sources

  1. Official Limestone County Mitigation Plan 2014 (2026 county census)
  2. Official Limestone County Mitigation Plan 2014, quoted and re-checked
  3. 2024 State of Texas Analysis of Impediments to Fair Housing Choice (2026 county census)
  4. 2024 State of Texas Analysis of Impediments to Fair Housing Choice, quoted and re-checked
  5. Limestone County - OSSF Instructions (2026 county census)
  6. Limestone County OSSF / Environmental Office (co.limestone.tx.us)
  7. Limestone County Floodplain Regulations, quoted and re-checked
  8. City of Mexia Zoning Ordinance, quoted and re-checked
  9. Texas law on county zoning and building authority
  10. Order of the Limestone County Commissioners Court Establishing Subdivision Regulations and Plat Requirements, quoted and re-checked
  11. Official Limestone County Mitigation Plan 2014 (2026 county census)
  12. Texas law on county zoning and building authority
  13. Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
  14. Adopted Building Codes | Mexia, TX, quoted and re-checked
  15. Limestone County Judge's Office (co.limestone.tx.us)
  16. Limestone County Floodplain Administrator (co.limestone.tx.us)
  17. 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
  18. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  19. Industrialized Housing and Buildings – Adoption of New Code Editions (Texas statewide rule), quoted and re-checked
  20. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  21. Annual precipitation: Bolthole Index county data
  22. Share of years in severe drought: Bolthole Index county data
  23. Share of land at 15% slope or less: Bolthole Index county data
  24. Wooded share of land: Bolthole Index county data
  25. Population density: Bolthole Index county data
  26. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data
  27. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked

Written October 10, 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

Unlike 4 of its 6 neighbors, Limestone County requires no county building permit for a home.

RuleLimestone CountyFreestone CountyFalls CountyRobertson CountyLeon CountyNavarro CountyMcLennan County
Building permitNot requiredLimitedNot requiredNot requiredLimitedLimitedLimited
County zoningNoNoNoNoNoYesNo
Septic permitsCounty OSSFOSSFFalls CountyCounty OSSF ProgramCounty OSSF Compliance ProgramCounty Env. Div.Waco-McLennan County Public Health District

County locator

Limestone County in Texas

70
County map
Limestone County highlighted among the Texas counties · colored by Index score

How Limestone County scores

Seclusion59100% ev.
Self-Sufficiency48100% ev.
Admin Boringness8490% ev.
Durability44100% ev.
Property Autonomy71100% ev.
Carry Cost81100% ev.

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

$179kTypical home
1.2%Property tax
$2,658Land / acre
40.4"Annual rain
18.1% of yrsSevere drought
40.5 / yr (+27.7)Mid-century 100°F days
21.9 daysMid-century dry spell
2.18" (+6.2%)Mid-century 1-day rain
1.39×Wildfire change factor
100%Forward climate coverage
$1,987Home insurance / yr
0.4% / yrInsurance growth
0%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
12,368People within 30 min
5,005,737People within 2 hr
16,235Radius comparison (15 mi)
24.6People / sq mi
0%Federal land
99.8%Land at 15% slope or less
14.8%Soils rated "not limited" for septic (strict USDA rating)
84,053 acWorkable land screen
22.5%Wooded land
17.3 tonsBiomass / forest ac
66.5°FAvg temp

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Cities and towns in Limestone 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 Coolidge · Town of Kosse · Town of Tehuacana · Town of Thornton

Answers from the rulebook for Limestone County

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

Limestone County rules

  • Building permitNot required

    County-issued building-code permits for ordinary residential construction in unincorporated Limestone County, outside incorporated municipalities and separately regulated floodplain areas.

    • The county mitigation plan states that counties do not have authority to adopt building codes.
    • A floodplain development permit is separately required if the property is in the floodplain.
    • Municipal building permits and inspections may apply within incorporated cities or municipalities.
    • This claim does not address OSSF/septic, subdivision, floodplain, utility, or other separate approvals.
    “Only the cities have the authority to adopt building codes; counties do not have this authority.”
  • Owner-builder exemption · follows from the permit answerNot needed

    Unincorporated Limestone County: no county building permit is required, so there is no permit to be exempt from and you may build your own home. State licensing for electrical, plumbing and HVAC work may still apply.

    • The county mitigation plan states that counties do not have authority to adopt building codes.
    • A floodplain development permit is separately required if the property is in the floodplain.
    “Only the cities have the authority to adopt building codes; counties do not have this authority.”
  • County-wide zoningAbsent

    General county zoning authority and countywide zoning regulation in Limestone County, including its unincorporated area.

    • Texas counties retain selected land-use powers that are not general zoning.
    • The state source identifies limited exceptions, including specified areas around lakes, military establishments, historic areas, South Padre Island, Amistad Recreation Area, and Hood County; no Limestone County exception was identified in the reviewed official state material.
    • Municipal zoning remains separate from county authority.
    “The State of Texas does not grant zoning authority to counties, with a few exceptions. [...] in one case, to an entire county (Hood County).”
  • Zoning districts · by state lawNo county rule

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Unincorporated Limestone County: no county rule sets this, because Limestone County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Limestone County's own reviewed answer confirms it has no county-wide zoning.

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

    Subdivisions in Limestone County that create two or more parts of five acres or less intended for residential purposes.

    • The regulations apply only to a subdivision which creates two or more parts of five acres or less intended for residential purposes.
    • Lots of five acres or less are presumed to be for residential purposes unless the land is restricted to nonresidential uses on the final plat and in all deeds and contracts for deeds.
    • The order was adopted on December 27, 2010 and states that the rules became effective on December 27, 2010.
    • The published fee schedule states: Preliminary Plat $200.00 plus $10.00 per lot; Final Plat $100.00 plus $5.00 per lot.
    • The application fee is paid to the County Engineer’s office when the preliminary or final plat is submitted.

    residential subdivision applicability threshold: <= 5 acres (Applies when the subdivision creates two or more parts intended for residential purposes.) · preliminary plat application fee: 200 USD (Plus $10.00 per lot.) · final plat application fee: 100 USD (Plus $5.00 per lot.)

    “Notwithstanding any provision to the contrary, these rules apply only to a subdivision which creates two or more parts of five acres or less intended for residential purposes. Lots of five acres or less are presumed to be for residential purposes unless the land is restricted to nonresidential uses on the final plat and in all deeds and contracts for deeds.”
  • Building in a floodplainRequired

    Construction and other development on property located in the floodplain in Limestone County.

    • All construction in Limestone County must adhere to federal floodplain regulations.
    • The Limestone County Floodplain Administrator’s Office examines construction for compliance with local and federal floodplain regulations.
    • Additional federal, state, or local permits may be required.
    • For proposed construction in a floodplain, the application requires one copy of plans and specifications.
    “If your property is in the floodplain, a floodplain permit will be required.”
  • Permit feesPublished (with conditions)

    Floodplain development permit applications in Limestone County.

    • The $25 application fee must be received before the application can be processed.
    • Cash or check may be paid in the Limestone County Treasurers’ Office located in the County Courthouse at 200 W. State St., Groesbeck, TX. 76642.
    • Online credit/debit card payments incur a $1 convenience fee.

    application fee: 25 USD · credit/debit card convenience fee: 1 USD (applies to online credit/debit card transactions)

    “There will be a $25 application fee that must be received before the application can be processed.”
  • Permit processPublished (with conditions)

    Floodplain development permit applications in Limestone County.

    • The completed application is returned to the Limestone County Floodplain Administrator by email or fax.
    • All requested information is mandatory to identify the property; incomplete forms are rejected.
    • If the proposed construction is in a floodplain, the applicant must provide one copy of the plans and specifications.
    • Additional federal, state, or local permits may be required.
    • The permit is valid for one year from the date issued and must be renewed if work is not completed at that time.
    • Applicants are reminded to submit at least four days before construction.

    permit validity period: 1 year from date issued (must be renewed if work is not completed) · recommended submission lead time: >= 4 days before construction (the application warns that many floodplain permits take time to research)

    “All information requested below is mandatory to properly ID the property. Incomplete forms are rejected.”

Texas rules that apply here

  • Building code adoptedPartial

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

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

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

    “July 1, 2024, all industrialized housing and buildings, modules, and modular components shall comply with the following codes, as amended in §70.101 of the IHB Rules:”
    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:”
  • Who permits septicMixed (with conditions)

    OSSF permitting, inspection, and administration throughout Texas.

    • TCEQ administers the program in areas where no local jurisdiction has been authorized.
    • A local governmental entity may administer the program only after an order, ordinance, or resolution is approved by TCEQ.
    • The authorized agent administers the program within its approved area of jurisdiction.
    • Local programs may adopt requirements more stringent than state minimums.
    “The authorized agent is responsible for the proper implementation of Texas Health and Safety Code, Chapter 366, 30 TAC Chapter 285, including reviewing OSSF permit applications, conducting inspections, investigating complaints, and more.”
    One more reviewed finding on this topic
    • Mixed — On-site sewage facilities, including septic systems, throughout Texas
      “TCEQ is not often the OSSF permitting authority. [...] The TCEQ regional office will be the permitting authority in locations where a local jurisdiction has not been authorized.”
  • Septic permitRequired

    Construction, installation, alteration, extension, repair, and operation of OSSFs in Texas, subject to stated exemptions and local requirements.

    • A permit and approved plan are required for construction, alteration, repair, extension, and operation of an OSSF.
    • A permit is generally required to construct, install, alter, extend, or repair an OSSF.
    • A local permitting authority must be checked because local programs may be more stringent than state minimums.
    • The 10-acre exemption requires compliance with 30 TAC Chapter 285 planning, construction, and installation standards; 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; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; on-site effluent disposal; and the single-family dwelling must be the only dwelling on the tract.
    • Emergency repairs listed by TCEQ do not require a permit but must be reported to the permitting authority in writing within 72 hours after repairs begin.
    • Grandfathered systems may be exempt if installed before the local program was authorized or before September 1, 1989, whichever is earlier, and if they are not creating a nuisance, are not in need of repair, and have had no significant increase in use or other alteration.
    • The permitting authority must approve or deny planning materials and the permit application within 30 days of receipt.

    minimum tract size for 10-acre exemption: >= 10 acres (single-family dwelling and all other stated conditions must be met) · minimum OSSF setback under 10-acre exemption: >= 100 feet from property line (all parts of the OSSF) · emergency repair reporting deadline: <= 72 hours (after repairs have begun) · permit application decision deadline: <= 30 days (from receipt by permitting authority)

    “A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.”
    2 more reviewed findings on this topic
    • Required — OSSF construction, installation, alteration, extension, or repair in Limestone County, subject to the applicable local permitting authority
      “A permit is required to construct, install, alter, extend, or repair an OSSF. Always check with your local permitting authority. Local permitting programs can be more stringent than State minimums.”
    • Required — Construction, installation, alteration, extension, or repair of an OSSF in Texas
      “A permit is required to construct, install, alter, extend, or repair an OSSF. [...] An OSSF may be exempt from permitting if it complies with all other requirements, including planning, construction, and installation standards of 30 TAC 285 AND meets the “10 acre rule”:”
  • Septic inspectionRequired

    Construction inspections for OSSFs in Limestone County when the state OSSF construction-inspection rule applies

    • The installer must notify the permitting authority at least five working days, Monday through Friday excluding holidays, before the OSSF will be ready for inspection.
    • An authorization to construct is valid for one calendar year; if the installer does not request a construction inspection within that year, the authorization expires and a new application and fee are required before installation.
    • If the OSSF fails inspection, it cannot be used until it passes inspection; the permitting authority must provide the deficiencies at the close of inspection and in a letter within seven calendar days.
    • A reinspection fee may be assessed and must be paid before reinspection.
    • No planning materials, permit, and inspections are required for a qualifying single-family dwelling OSSF on a tract of at least 10 acres if all stated Chapter 285 conditions are met.
    • The applicable permitting authority may be a local authorized agent or TCEQ, depending on the approved local jurisdiction.

    advance inspection notice: 5 working days (Monday through Friday, excluding holidays) · authorization-to-construct validity: 1 calendar year (inspection must be requested within that period) · post-inspection deficiency letter deadline: 7 calendar days (after failed construction inspection)

    “The installer shall notify the permitting authority at least five working days (Monday through Friday, excluding holidays) before the date the OSSF will be ready for inspection. The permitting authority shall conduct a construction inspection.”
    2 more reviewed findings on this topic
    • Limited — OSSF installation and, where applicable, maintenance inspections in Texas
      “Many times, the AA has a "designated representative" (DR) to assist them with their responsibilities, which include reviewing plans for constructing, altering, extending or repairing each OSSF; issuing permits; and inspecting system installation. [...] If the system uses an electronic monitor, automatic radio or telephone to notify the maintenance provider of system or component failure and to monitor the amount of disinfection in the system, reporting may be reduced to every six months.”
    • Limited — OSSFs using secondary treatment or drip irrigation in Texas.
      “A system using secondary treatment or drip irrigation must be inspected by a valid maintenance company once every four months, or be maintained by the single family homeowner, where allowed.”
  • Off-grid sanitationLimited

    Off-grid wastewater sanitation through an OSSF in Texas.

    • An OSSF generally requires a permit and approved plan before construction, installation, alteration, extension, repair, or operation.
    • A qualifying single-family dwelling on a tract of at least 10 acres may use the 10-acre permitting exemption only if every stated site-evaluation, setback, nuisance, groundwater, on-site disposal, and single-dwelling condition is met.
    • Local permitting authorities may impose requirements more stringent than state minimums.
    • Emergency repairs are exempt from permitting only for the listed repair types and must be reported in writing within 72 hours after repairs begin.

    10-acre exemption tract size: >= 10 acres (all TCEQ conditions must be satisfied) · 10-acre exemption OSSF setback: >= 100 feet from property line (all parts of the OSSF)

    “An OSSF may be exempt from permitting if it complies with all other requirements, including planning, construction, and installation standards of 30 TAC 285 AND meets the “10 acre rule”:”
    One more reviewed finding on this topic
    • Limited — Composting toilets used as on-site sewage facility treatment systems in Texas.
      “Composting toilets will be approved by the executive director provided the system has been tested and certified under NSF International Standard 41 (1999) or under any other standards approved by the executive director.”
  • 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.”
  • Agricultural exemptionAvailable (with conditions)

    Owner-initiated division of land in unincorporated Limestone County, Texas, where the tract is outside municipal limits and the division creates two or more parts.

    • The exemption applies only to the platting requirements of Local Government Code Chapter 232, Subchapter A.
    • The owner must not lay out a part of the tract described by Local Government Code Section 232.001(a)(3).
    • The land must 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.
    • If the tract ceases to be used primarily for agricultural use or for farm, ranch, wildlife management, or timber production use, the Chapter 232 platting requirements apply.
    • The rule does not establish an exemption from septic, wastewater, floodplain, health, or other applicable requirements.
    “(c) A county may not require the owner of a tract of land located outside the limits of a municipality who divides the tract into two or more parts to have a plat of the subdivision prepared if: (1) the owner does not lay out a part of the tract described by Section 232.001(a)(3); and (2) 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. (d) If a tract described by Subsection (c) ceases to be used primarily for agricultural use or for farm, ranch, wildlife management, or timber production use, the platting requirements of this subchapter apply.”
  • Driveway accessRequired

    New or modified access driveways connecting property to a Texas state highway right of way.

    • A local public agency may receive access driveway permitting authority for state highways, but TxDOT approval remains required for drainage impacts on the state highway system before local approval.
    • No access driveway is permitted within a flared or widened right-of-way section at an intersection of a state highway with another highway, road, or street.
    • All entrances and exits, including radii, must be confined within the permittee's property frontage.
    • One-way 45-to-90-degree driveways are permitted for connections to one-way frontage roads or lane-divided highways; otherwise the driveway angle must be 75 to 90 degrees.
    • ADAAG and Texas Accessibility Standards apply.

    private residential driveway maximum width: <= 24 feet (Except as increased by permissible radii.) · driveway-to-pavement radius: >= 15 feet

    “A driveway must be constructed in accordance with a fully executed driveway permit”
  • 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 Limestone County

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

  • Building code adoptedAdopted (with conditions)

    Construction regulated by the City of Mexia within its municipal jurisdiction.

    • All listed current codes are stated by the City of Mexia to be effective as of July 21, 2025.
    • The City exempts Section R309, automatic fire sprinkler systems, of the International Residential Code.

    International Residential Code: 2024 edition (Section R309 automatic fire sprinkler systems is exempted.) · International Building Code: 2024 edition · NFPA 70 National Electrical Code: 2023 edition

    “Note: All current codes are effective as of July 21, 2025. (1) International Residential Code, 2024 edition. (2) International Building Code, 2024 edition.”
  • Local zoningPresent (with conditions)

    Lots, tracts, and property within the city limits of the City of Mexia, Limestone County, Texas.

    • The ordinance applies within Mexia city limits.
    • The ordinance states that its zoning map is incorporated but not printed in the online code.
    • The ordinance was adopted July 21, 2009, and states it remains in force after publication.
    • A zoning variance may be requested from the Board of Adjustments under the ordinance's stated procedures.

    adoption date: 2009-07-21

    “AN ORDINANCE ESTABLISHING ZONING WITHIN THE CITY LIMIT OF THE CITY OF MEXIA”

Still unanswered

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

  • Inspections — Residential building inspections in unincorporated Limestone County, Texas
  • Certificate of occupancy — Certificates of occupancy for residential buildings in unincorporated Limestone County, Texas
  • Mandatory utility hookup — Water and wastewater utility-connection requirements for subdivisions in Limestone County
  • Short-term rentals — Short-term rental use in Limestone 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 Limestone County, Texas

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

Limestone County scores 70/100 on the Bolthole Index, a strong county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost.

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

Limestone 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 Limestone County OSSF / Environmental Department (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 Limestone County?

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

How much does land cost in Limestone County, Texas?

Land in Limestone County runs about $2,658 per acre, based on the latest county data.

What is the water situation in Limestone County?

Limestone County gets about 40.4" of rain a year, with severe drought in roughly 18.1% of years.

How remote is Limestone County?

A representative private-land location has about 12,368 people within a 30-minute drive and 5,005,737 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 Limestone compares in Texas

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