Bolthole Index

McCulloch County, Texas

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

67Index Score / 100
#59 of 254 in Texas

Unincorporated McCulloch County, Texas has no zoning requirements, and the county's own permits page says so directly, while confirming that septic, culvert and right-of-way permits are required1. Septic (OSSF) permits are issued directly by the county, and the soil here is unusually restrictive: only 3.1% of McCulloch County's soils carry no severe limits for a conventional drain field23. Water wells are separately regulated by the Hickory Underground Water Conservation District, which requires a Notice of Intent to Drill before any well, exempt or not4.

At a glance

Building permit
Not required in unincorporated McCulloch County; the county regulates septic, culvert and right-of-way permits instead5
Zoning
No zoning requirements at this time1
Septic (OSSF) permit
Required and issued directly by McCulloch County2
Water well
Regulated by the Hickory Underground Water Conservation District; a Notice of Intent to Drill is required for every well4
Subdividing land
Plat approval by Commissioners Court required to divide land into 2+ parts; tracts over 10 acres skip full approval but still file a map6
Setbacks / lot coverage / height
None set by county zoning in unincorporated areas7
RV / tiny home / manufactured home
No county zoning restriction on occupancy7
Subdivision road access
New subdivisions need a TxDOT sign-off approving road access8

Who to call

Septic permits

McCulloch County - Septic, Culvert and Right-of-Way Permits

Septic (OSSF), culvert and right-of-way permit applications, and subdivision plat submissions to the Commissioners Court, for unincorporated McCulloch County

(325) 597-0733

199 Courthouse Square, Brady, TX 76825

Online permits →

Well permits

Hickory Underground Water Conservation District No. 1

Water well permitting, Notices of Intent to Drill, and well-spacing/production rules for the McCulloch County portion of the district

(325) 597-2785

111 East Main Street, Brady, TX 76825

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 24, 2026.

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

No general building permit is required in unincorporated McCulloch County5. The county's own permits page is explicit about what it does regulate instead: septic permits, culvert permits, and right-of-way permits9. Because there's no established county building-permit regime, there's also no county owner-builder exemption on record; that question simply doesn't come up here the way it does in counties that do issue building permits10. None of this applies inside the City of Brady or the City of Melvin, which administer their own land-use rules, including Brady's own zoning code, within city limits11.

Who handles septic, wells and permits in McCulloch County?

McCulloch County has no building department, so land buyers work with two main offices. Septic (OSSF), culvert and right-of-way permit applications, along with subdivision plat submissions to the Commissioners Court, all go through the county at the courthouse in Brady12. Water wells are handled separately: the Hickory Underground Water Conservation District No. 1 covers McCulloch County and requires a Notice of Intent to Drill before any well is started, whether or not the well ends up exempt from permitting13.

Does McCulloch County have zoning?

No. The county's own permits page states it plainly: McCulloch does not have any zoning requirements at this time1. Texas law only grants counties zoning power in narrow, specifically named situations, such as parts of Padre Island in Cameron or Willacy County, none of which cover McCulloch County, so this isn't a gap the county left open by choice7. That absence of zoning leaves minimum dwelling size, minimum lot size, setbacks, lot coverage, building height, accessory dwellings, RV occupancy, temporary camping, tiny-home occupancy and manufactured-home occupancy all unrestricted at the county level7. Zoning is one of the few things that does differ inside the City of Brady, which separately administers a zoning code and design-review ordinances within city limits, so confirm with the city if your parcel is inside it11.

How do septic permits work in McCulloch County?

McCulloch County is a TCEQ-authorized agent and issues OSSF (septic) permits directly, rather than routing applications to a neighboring county's health department2. Take soil testing seriously here: only 3.1% of McCulloch County's soils carry no severe limits for a conventional septic drain field, one of the tightest shares of any rural county, so most sites will need an engineered system or a very carefully chosen building spot3. If you're buying 10 acres or more for a single-family home, ask whether you qualify for Texas's statewide 10-acre OSSF exemption, which can eliminate the permit requirement if the system sits at least 100 feet from every property line, causes no nuisance or groundwater pollution, and the tract has no other dwelling on it14. If your property is part of a platted subdivision, the county also requires a licensed OSSF inspector's certificate confirming the system complies with both the subdivision regulations and TCEQ rules before the plat is presented to Commissioners Court15.

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

As far as county zoning is concerned, yes. Because unincorporated McCulloch County has no zoning ordinance, RV occupancy, temporary camping, tiny-home occupancy and manufactured-home occupancy are all unrestricted at the county level7. That doesn't excuse sanitation or water: you still need an OSSF permit and an approved septic system before you can legally live on the parcel, and if your land is part of a regulated subdivision, the structure can't be occupied until it's connected to an approved well, a TCEQ-approved public water system, or another water supply approved by the Commissioners Court1216. If you plan to drill a well to support that occupancy, remember the Hickory Underground Water Conservation District requires a Notice of Intent to Drill regardless of whether the well ends up exempt from a full permit13.

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

  1. Have your soil tested early and apply for an OSSF permit with the county, or confirm you qualify for the state's 10-acre exemption before you rely on skipping it1214.
  2. File a Notice of Intent to Drill with the Hickory Underground Water Conservation District before any well work begins, and confirm whether your well qualifies for a domestic exemption or needs a full permit134.
  3. If you're creating a new lot rather than building on an existing one, submit your plat to the Commissioners Court for two readings at least a month apart, budget for the $50 revision fee plus a possible $500 hydrological study, and get a TxDOT sign-off on road access6178.
  4. Apply for a culvert permit through the county if your driveway needs one, contacting the County Commissioner for your precinct129.
  5. If your driveway connects to a state highway instead of a county road, file TxDOT Form 1058 with the district office before you build it18.
  6. There's no county building permit or inspection to schedule in unincorporated McCulloch County, so put that budget toward your septic, well and access work instead5.

What to check before you buy land in McCulloch County

Get a percolation test before you're under contract: with only 3.1% of county soils free of severe limits for a conventional drain field, most tracts will need an engineered septic system, and that cost should factor into your offer3. Confirm your water rights and well options with the Hickory Underground Water Conservation District, since every well, exempt or not, needs a Notice of Intent to Drill on file13. McCulloch County is genuinely remote: it sits about 86 miles from the nearest metro area, with just 7 people per square mile across the county, and severe drought hits about 25.7% of years, worth weighing heavily against any well or pond plans192021. Property taxes run on the higher side for a rural county: the effective rate is about 1.4%, with a median annual bill around $1,4352223. Typical home values run around $162,236 and farmland averages about $2,129 an acre, useful benchmarks when comparing a listing to the county norm2425.

Watch-outs

  • No official McCulloch County page confirming or denying a countywide building-code adoption, building-inspection program, or certificate-of-occupancy requirement could be verified during this research; call the county permits office if your project is unusual9.
  • "McCulloch does not have any zoning requirements" describes the county only; the City of Brady administers its own zoning code and design-review ordinances within city limits, and this was not separately confirmed for the City of Melvin during this research11.
  • No official floodplain-development rule for McCulloch County was confirmed during this research; if your parcel is near a creek or low-lying area, ask the county permits office directly before you assume no permit is needed9.

Sources

  1. McCulloch County permits, quoted and re-checked
  2. McCulloch County Texas On-Site Sewage Facility, quoted and re-checked
  3. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  4. Hickory UWCD No. 1 Groundwater Management Plan Adopted 2024, quoted and re-checked
  5. McCulloch County, Texas (official site) (2026 county census)
  6. McCulloch County Subdivision Regulations, quoted and re-checked
  7. Texas law on county zoning and building authority
  8. McCulloch County Subdivision Regulations, quoted and re-checked
  9. McCulloch County permits, quoted and re-checked
  10. (2026 county census)
  11. McCulloch County permits, quoted and re-checked
  12. McCulloch County - Septic, Culvert and Right-of-Way Permits (co.mcculloch.tx.us)
  13. Hickory Underground Water Conservation District No. 1 (hickoryuwcd.org)
  14. Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
  15. McCulloch County Subdivision Regulations, quoted and re-checked
  16. McCulloch County Subdivision Regulations, quoted and re-checked
  17. McCulloch County Subdivision Regulations, quoted and re-checked
  18. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  19. Distance to the nearest metro area: Bolthole Index county data
  20. Population density: Bolthole Index county data
  21. Share of years in severe drought: Bolthole Index county data
  22. Effective property tax rate: Bolthole Index county data
  23. Median property tax bill: Bolthole Index county data
  24. Typical home value (Zillow): Bolthole Index county data
  25. Farmland value per acre (USDA census): Bolthole Index county data

Written September 24, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Found land here? Start a Property Hunt →

County locator

McCulloch County in Texas

67
County map
McCulloch County highlighted among the Texas counties · colored by Index score

How McCulloch County scores

Seclusion84100% ev.
Self-Sufficiency3396% ev.
Admin Boringness8490% ev.
Durability45100% ev.
Property Autonomy71100% ev.
Carry Cost80100% ev.

Evidence strength: 97%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$162kTypical home
1.4%Property tax
$2,129Land / acre
27.1"Annual rain
25.7% of yrsSevere drought
42.9 / yr (+27.9)Mid-century 100°F days
27.8 daysMid-century dry spell
1.85" (+5.9%)Mid-century 1-day rain
1.35×Wildfire change factor
100%Forward climate coverage
$2,208Home insurance / yr
-1.3% / yrInsurance growth
0%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
3,528People within 30 min
353,759People within 2 hr
6,601Radius comparison (15 mi)
7People / sq mi
0%Federal land
94.9%Land at 15% slope or less
3.1%Septic soil without severe limits
16,978 acWorkable land screen
14.3%Wooded land
9.9 tonsBiomass / forest ac
65.6°FAvg temp

Scout McCulloch County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

View your full hunt →
ZillowLand & lotsRealtor.comLand listingsLandSearchRural & vacant land

Each button opens a current land search for McCulloch County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

—land + entered setup costs
Asking $ / acre
—
Setup allowance
—
All-in $ / acre
—

A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

Before an offer

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Answers from the rulebook for McCulloch County

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

McCulloch County rules

  • County-wide zoningAbsent

    County zoning requirements administered by McCulloch County.

    • The county page states that the county does not have zoning requirements at this time.
    • This claim does not address zoning administered by incorporated municipalities.
    “McCulloch does not have any zoning requirements at this time.”
  • Local zoningVaries (with conditions)

    Aggregate local zoning across McCulloch County, including county-administered unincorporated areas and incorporated municipalities.

    • McCulloch County states it has no zoning requirements at this time.
    • The City of Brady separately administers land-use regulations including a zoning code and design review ordinances.
    • Municipal zoning applies within the relevant municipality and is not a county-administered rule.
    “The Committee is also responsible for the orderly development of the City and the administration of various land use regulations, including the zoning code and design review ordinances.”
  • Zoning districtsNot published

    Zoning districts and zoning requirements in unincorporated McCulloch County.

    • The county statement does not address zoning adopted by incorporated municipalities within the county.
    “McCulloch does not have any zoning requirements at this time.”
  • Minimum dwelling size · by state lawNo county rule

    Unincorporated McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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.”
  • Who permits septicCounty

    McCulloch County's published onsite sewage facility permitting intake.

    • The county page directs applicants to obtain an OSSF permit application from the county.
    • State OSSF requirements and any applicable local requirements still govern the application.
    “The County does require entities to apply for septic permits, culvert permits, and right of way permits.”
  • Septic inspectionLimited

    Onsite sewage facilities associated with plats governed by McCulloch County Subdivision Regulations.

    • The county subdivision regulation requires a licensed OSSF inspector's approval certificate for the plat.
    • The inspector must certify that the OSSF facilities for the plat comply with the related McCulloch County Subdivision Regulations and TCEQ requirements.
    • The inspector may be required to appear for questioning at presentation of the plat to Commissioners Court.
    “Licensed On-Site Sewage Facility Inspector in the State of Texas, hereby certify that I have inspected the On-Site Sewage Facilities for this plat, and the same complies with the related requirements of the McCulloch County Subdivision Regulations and the TCEQ.”
  • Well permitLimited

    Water wells within the Hickory Underground Water Conservation District No. 1 portion of McCulloch County.

    • A permit or permit amendment is required before drilling, substantially altering, or producing from a well unless a Rule 8.2 exemption applies.
    • Domestic or livestock wells incapable of producing more than 25,000 gallons per day may be exempt under the stated conditions.
    • A one-well-per-lot exemption may apply to lots of 10 acres or less serving no more than four qualifying households solely for domestic use; exempt wells must still be registered.
    • A well supplying water for a subdivision requiring plat approval under Local Government Code Chapter 232 is not exempt under the listed domestic exemptions.
    • A Notice of Intent to Drill is required before drilling any well, whether exempt or permitted.

    production threshold for specified domestic/livestock exemption: <= 25000 gallons per day (well must satisfy the district's stated domestic/livestock conditions) · small-lot exemption size: <= 10 acres (one well per lot, no more than four qualifying households, solely domestic use) · small-lot exemption household limit: <= 4 households (each household must satisfy the district's relationship or employment conditions)

    “No person shall begin to drill, substantially alter, or produce from a well without having received a permit or permit amendment from the District, unless the well is exempted from permitting under Rule 8.2.”
  • Mandatory utility hookupConditional

    Structures in subdivisions subject to the McCulloch County Subdivision Regulations.

    • Before occupancy, the structure must connect to an individual water well approved by Hickory Underground Water Conservation District, a TCEQ-approved public water supply system, or another domestic water supply approved by the McCulloch County Commissioners Court.
    • The quoted rule applies to subdivisions and does not establish a countywide connection requirement for every parcel.
    “No structure in this subdivision shall be occupied until connected to either: an individual water well, the location of which has been approved by the Hickory Underground Water Conservation District, a TCEQ approved public water supply system (described below), or other domestic water supply subject to approval by the McCulloch County Commissioners Court.”
  • Subdividing landRegulated (with conditions)

    Subdivision plats and related development outside incorporated city boundaries in McCulloch County.

    • A plat must be submitted to the Commissioners Court for approval before filing with the County Clerk.
    • Subdivision plats require two separate readings at least one month apart.
    • The second reading must occur within one year after first-reading preliminary-plat approval.
    • Required submissions must generally be made at least 30 calendar days before the Commissioners Court meeting.
    • No lot may be sold or transferred until the final plat is approved and recorded and applicable standards are satisfied.
    • Property wholly within the city limits or ETJ of Brady or Melvin is under the cities' exclusive jurisdiction under interlocal agreements; mixed City/ETJ and County property is subject to separate regulations, with the more stringent regulations prevailing.
    • Excluded transactions include intra-family transfers, boundary-line transactions, court-ordered partitions, tracts over 10 acres, certain easement transfers, specified inherited or gifted-property divisions, financing surveys retaining unified ownership, qualifying agricultural or farm/ranch/wildlife/timber divisions, and certain Veterans' Land Board divisions.

    minimum acreage for excused preliminary and final plat approval: >= 10 acres (A map of the subdivision must still be filed with the County Clerk and applicable filing fees paid.) · plat readings: 2 readings (Readings must be at least one month apart; second reading must occur within one year after preliminary-plat approval.) · otherwise exempt plat filing fee: 250 USD per plat up to 5 pages (Each additional page is $25.)

    “Said map or plat, shall be prepared in compliance with these regulations and with the subdivision statutes of the State of Texas and shall be submitted to the Commissioners Court for approval prior to filing with County Clerk.”
  • Driveway accessLimited

    Road access for proposed subdivisions in unincorporated McCulloch County.

    • A sign-off from the Texas Department of Transportation approving road access is required in the subdivision-plat process.
    • The cited requirement concerns subdivision approval and does not establish a countywide rule for every individual driveway.
    “A sign-off from the Texas Department of Transportation approving road access.”
  • Permit feesPublished (with conditions)

    Revision of an existing subdivision plat in unincorporated McCulloch County.

    • The $500.00 hydrological study fee may be waived by variance.
    • An additional fee equal to the cost of publication and/or certified-letter notice may apply.
    • All fees must be paid before Commissioners Court approval.

    revision of plat fee: 50 USD per plat · records preservation fee: 5 USD per plat · courthouse security fee: 1 USD per plat · hydrological study of water availability fee: 500 USD per plat (unless waived by variance)

    “$50.00 per plat, [...] $500.00 per plat Hydrological Study of Water Availability (unless waived by variance)”
  • Permit processPublished (with conditions)

    County-administered septic, culvert, and right-of-way permits; the source does not provide a complete process for every permit type.

    • The county page identifies these permit categories but does not state all application steps or review requirements.
    • For culvert installation, the applicant must complete the form and contact the County Commissioner for the applicable precinct.
    “apply for septic permits, culvert permits, and right of way permits.”
  • Building permitNot required

    McCulloch County's official site lists elected offices and permits limited to right-of-way/culvert work, with no county building-inspection department; Texas counties have no general authority to require building permits in unincorporated areas.

    McCulloch County, Texas (official site) ↗Scouted from the county site, not yet independently re-checked

Texas rules that apply here

  • Building code adoptedPartial

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

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

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

    “July 1, 2024, all industrialized housing and buildings, modules, and modular components shall comply with the following codes, as amended in §70.101 of the IHB Rules:”
  • Septic permitRequired

    Construction, installation, alteration, extension, or repair of an OSSF in Texas

    • A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.
    • A 10-acre exemption may apply only if all listed conditions are met: site evaluation by a TCEQ-licensed site evaluator or professional engineer; single-family dwelling on at least 10 acres; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; effluent disposed of on the property; and the single-family dwelling is the only dwelling on the tract.
    • Emergency repairs listed by TCEQ do not require a permit but must be reported in writing to the permitting authority within 72 hours after repairs begin.
    • Grandfathered systems may also be exempt if the stated conditions are met.

    minimum tract size for 10-acre exemption: >= 10 acres (single-family dwelling and all other TCEQ conditions must be met) · minimum OSSF distance from property line for 10-acre exemption: >= 100 feet (all parts of the OSSF) · emergency repair reporting deadline: <= 72 hours (after repairs have begun; written report to permitting authority)

    “A permit is required to construct, install, alter, extend, or repair an OSSF. [...] An OSSF may be exempt from permitting if it complies with all other requirements, including planning, construction, and installation standards of 30 TAC 285 AND meets the “10 acre rule”:”
  • Off-grid sanitationLimited

    Off-grid domestic wastewater disposal through an OSSF or septic system in McCulloch County.

    • Off-grid sanitation is allowed through an OSSF only after obtaining the required permit and approved plan, unless a stated exemption applies.
    • The 10-acre exemption requires a qualifying single-family dwelling, site evaluation, no nuisance or groundwater pollution, all OSSF parts at least 100 feet from the property line, onsite effluent disposal, and no other dwelling on the tract.
    • Emergency repairs are exempt from permitting only when reported in writing within 72 hours after repairs begin.
    • Local permitting authorities may impose requirements more stringent than state minimums.

    10-acre exemption tract size: >= 10 acres (all stated exemption conditions must be met) · 10-acre exemption setback: >= 100 feet (all parts of OSSF from property line) · emergency-repair reporting period: 72 hours (after repairs begin)

    “A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.”
  • 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.”
  • 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.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemptions from county building-permit or inspection requirements in McCulloch County
  • Inspections — Building inspections in McCulloch County, including unincorporated areas
  • Certificate of occupancy — Certificates of occupancy in McCulloch County, including unincorporated areas
  • Building in a floodplain — Development in floodplain areas of McCulloch County.
  • Short-term rentals — Short-term rental use in McCulloch County.

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 McCulloch County, Texas

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

McCulloch County scores 67/100 on the Bolthole Index, a strong county profile. Its strengths: low administrative friction for a quiet rural property and deep seclusion — about 3,528 people within a 30-minute drive. Watch-outs: workable self-sufficiency basics (27.1″/yr rainfall).

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

McCulloch 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 McCulloch County (OSSF authorized agent of TCEQ). 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 McCulloch County?

Living in an RV on your own land in McCulloch County is allowed: Unincorporated McCulloch County: no county rule sets this, because Texas law gives zoning power only to certain counties, and McCulloch County has no zoning ordinance. McCulloch 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 McCulloch County, Texas?

Land in McCulloch County runs about $2,129 per acre, based on the latest county data.

What is the water situation in McCulloch County?

McCulloch County gets about 27.1" of rain a year, with severe drought in roughly 25.7% of years.

How remote is McCulloch County?

A representative private-land location has about 3,528 people within a 30-minute drive and 353,759 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.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

How McCulloch compares in Texas

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