Bolthole Index

La Salle County, Texas

Building permits, zoning and land rules in La Salle County, Texas

61Index Score / 100
#88 of 254 in Texas

La Salle County, Texas requires a development permit for construction in mapped special flood hazard areas, but we could not confirm a general county building permit for unincorporated land12. Unincorporated La Salle County has no county zoning rules for home size, setbacks, RV occupancy or tiny homes34. Septic systems usually need a permit and approved plan through the local permitting authority, which TCEQ identifies as its Region 16 office for La Salle County56.

At a glance

Building permit
Required in mapped special flood hazard areas; a general permit is unconfirmed12
Zoning
No county zoning rules on unincorporated land34
Septic permit
Usually required; TCEQ Region 16 serves La Salle County56
RV / tiny home living
Unrestricted by county zoning on unincorporated land4
Minimum home or lot size
None set by county zoning on unincorporated land4
County-road driveway
County approval is required before construction78
Water wells
Non-exempt wells need a district permit9
Septic soil difficulty
Only 26.8% of soils lack severe limits for a conventional drain field10

Who to call

Floodplain permits

La Salle County Judge (Floodplain Administrator)

Floodplain Development Permit questions and applications

(830) 483-5139

101 Courthouse Square, Suite #315 3rd Floor, Cotulla, TX 78014

Roads & driveways

La Salle County Clerk

Intake for county-road driveway permits

(830) 483-5120

101 Courthouse Square, Suite #107, Cotulla, TX 78014

Septic permits

TCEQ Region 16 - Laredo

OSSF permitting for La Salle County

956-753-4058

[email protected]

707 E CALTON RD Ste 304, LAREDO, TX 78041 - 3887

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

Do you need a building permit in La Salle County, Texas?

A Floodplain Development Permit is required for construction, manufactured-home placement and other development in La Salle County's mapped special flood hazard areas12. The County Judge serves as Floodplain Administrator and can review, approve or deny those applications11. Outside those mapped areas, we could not confirm that La Salle County has adopted a general building-permit program, building code, inspection program or certificate-of-occupancy requirement; ask the County Clerk before committing to construction1. Texas law provides only conditional county building authority, and the available county materials do not establish that La Salle County adopted one of those programs12. State code requirements still apply to industrialized housing, buildings, modules and modular components13.

Who handles La Salle County permits, and how do you reach them?

La Salle County does not publish a general building department, so begin with the County Clerk when a project lies outside a mapped flood hazard area and you need confirmation about county approvals114. Contact the County Judge's office for development in a mapped special flood hazard area, because the County Judge is the Floodplain Administrator under the county ordinance1115. Submit a driveway application to the County Clerk when access will enter La Salle County road right-of-way; the county reviews the application before construction may begin814. A driveway onto a state highway instead goes through TxDOT using its access-driveway process16. For septic permitting, contact TCEQ Region 16 - Laredo, whose official OSSF record lists La Salle County as its service area6.

Does La Salle County have zoning?

Unincorporated La Salle County has no county zoning ordinance3. As a result, county zoning sets no minimum dwelling size, minimum lot size, building setback, lot-coverage limit or building-height limit on unincorporated land4. County zoning also does not restrict accessory dwellings, RV occupancy, tiny-home occupancy, manufactured-home occupancy or temporary camping there4. Other rules remain: mapped flood hazard areas require development permits, county-road access requires driveway approval, and septic systems remain regulated1175. A newly divided rural tract may also require subdivision plat review and compliance with county road, drainage and wastewater-planning standards17. Incorporated municipalities can have separate rules, so verify city requirements when a parcel is inside city limits.

How do septic permits work in La Salle County?

Texas generally requires a permit and approved plan before an OSSF is constructed, installed, altered, extended or repaired5. TCEQ's official authority record identifies Region 16 - Laredo as the office serving La Salle County6. Contact that office before design work because the local authority determines the application path and may impose requirements beyond the state minimum186. A narrow state exemption may apply to a single-family dwelling on at least 10 acres when every listed condition is satisfied, including a licensed site evaluation, all OSSF components at least 100 feet from the property line, on-site effluent disposal and no other dwelling on the tract5. Only 26.8% of county soils lack severe limits for a conventional drain field, so arrange the site evaluation early and budget for an alternative design10. Authorized agents or their representatives inspect qualifying installations19.

Can you live in an RV or tiny home on land in La Salle County?

County zoning does not restrict RV living, tiny-home occupancy, manufactured-home occupancy or temporary camping on unincorporated land in La Salle County4. County zoning also sets no minimum dwelling size or minimum lot size there4. Placing a structure or manufactured home in a mapped special flood hazard area requires a county development permit12. An RV or tiny home using an OSSF must follow septic permitting rules unless every condition of a state exemption is met20. We could not confirm a county certificate-of-occupancy rule, a general inspection schedule or a countywide public-water or sewer connection mandate, so ask the County Clerk and the relevant utility before moving in114. Private deed restrictions can also affect a particular tract and should be checked during title review.

Building a home in La Salle County: the steps, in order

  1. Confirm whether the site lies in a mapped special flood hazard area; apply through the County Judge's office before development if it does1115.
  1. Ask the County Clerk to confirm any project-specific county approval because a general building permit, inspection program and occupancy approval could not be confirmed114.
  1. If the tract is being divided, complete the county subdivision-plat process before relying on access or utility plans17.
  1. Contact TCEQ Region 16 - Laredo and arrange the required OSSF application, planning and site evaluation56.
  1. Obtain a Wintergarden Groundwater Conservation District permit for a non-exempt well; even a qualifying exempt domestic or livestock well must be registered before drilling9.
  1. Apply through the County Clerk before constructing a driveway onto county road right-of-way, or through TxDOT for state-highway access816.
  1. Confirm utility requirements and any private deed restrictions before ordering materials.

What should you check before buying land in La Salle County?

Start with flood status, legal access, subdivision history, water and septic feasibility. A mapped special flood hazard area triggers county development permitting, while a driveway onto county road right-of-way needs separate approval117. Only 26.8% of soils lack severe limits for conventional drain fields, so a low purchase price can be offset by a more complex wastewater design10. La Salle County averages 22.6 inches of precipitation, and severe drought occurs in 22.1% of years, making a dependable water plan especially important2122. Non-exempt wells require a Wintergarden Groundwater Conservation District permit, while exempt wells still require registration before drilling9. The land is broadly gentle, with 100% at slopes of 15% or less, but only 20.6% is wooded2324. Typical effective property tax is about 1.6%, with a median annual bill near $1,5772526.

Watch-outs

  • A floodplain permit is confirmed, but a general building permit, county building inspections and a certificate of occupancy are not; ask the County Clerk about the specific parcel and project114.
  • TCEQ's current OSSF record points La Salle County applicants to Region 16 - Laredo, despite county material referring generically to a designated representative6.
  • A county-road driveway requires county approval, while access to a Texas state highway follows the TxDOT permit process727.

Sources

  1. Flood Damage Prevention Ordinance (2026 county census)
  2. Flood Damage Prevention Ordinance, quoted and re-checked
  3. La Salle County, TX - Permits & Applications (2026 county census)
  4. Texas law on county zoning and building authority
  5. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  6. TCEQ Region 16 - Laredo (www6.tceq.texas.gov)
  7. La Salle County Driveway Permit Process / Access Management Manual, quoted and re-checked
  8. La Salle County Driveway Permit Process / Access Management Manual, quoted and re-checked
  9. About Us - Wintergarden Groundwater Conservation District, quoted and re-checked
  10. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  11. 2008 Flood Damage Prevention Ordinance, quoted and re-checked
  12. Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
  13. Industrialized Housing and Buildings – Adoption of New Code Editions (Texas statewide rule), quoted and re-checked
  14. La Salle County Clerk (co.la-salle.tx.us)
  15. La Salle County Judge (Floodplain Administrator) (co.la-salle.tx.us)
  16. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  17. La Salle County Commissioners Court, quoted and re-checked
  18. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  19. Basics for Septic Systems (Texas statewide rule), quoted and re-checked
  20. Getting a Permit for an OSSF - Such as a Septic System, 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. Effective property tax rate: Bolthole Index county data
  26. Median property tax bill: Bolthole Index county data
  27. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked

Written September 28, 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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County locator

La Salle County in Texas

61
County map
La Salle County highlighted among the Texas counties · colored by Index score

How La Salle County scores

Seclusion85100% ev.
Self-Sufficiency2996% ev.
Admin Boringness8290% ev.
Durability38100% ev.
Property Autonomy71100% ev.
Carry Cost8196% 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 →

$115kTypical home
1.6%Property tax
$2,050Land / acre
22.6"Annual rain
22.1% of yrsSevere drought
85.2 / yr (+42.8)Mid-century 100°F days
34.7 daysMid-century dry spell
2.3" (+10.5%)Mid-century 1-day rain
1.35×Wildfire change factor
100%Forward climate coverage
$1,731Home insurance / yr
-0.1% / yrInsurance growth
0%Nonrenewal rate
single ZIP shrunk to state medianInsurance basis
301,093People within 2 hr
2,392Radius comparison (15 mi)
4.4People / sq mi
0%Federal land
100%Land at 15% slope or less
26.8%Septic soil without severe limits
250,508 acWorkable land screen
20.6%Wooded land
5.9 tonsBiomass / forest ac
72°FAvg temp

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Answers from the rulebook for La Salle County

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

La Salle County rules

  • Building permitLimited

    Development, including construction and placement of manufactured homes, in areas of special flood hazard within La Salle County.

    • The ordinance applies only to areas of special flood hazard within La Salle County.
    • A Floodplain Development Permit is required for all development within the community under the ordinance.
    • The application may require plans in duplicate drawn to scale showing location, dimensions, and elevations of proposed alterations and structures.
    • The application requires the elevation of the lowest floor of all new and substantially improved structures, the floodproofing elevation for nonresidential structures, a professional engineer or architect certificate for a nonresidential floodproofed structure, and a description of any watercourse or natural drainage alteration or relocation.
    • The County Judge is the Floodplain Administrator and reviews, approves, or denies applications.
    “The ordinance shall apply to all areas of special flood hazard with the jurisdiction of La Salle County. [...] A Floodplain Development Permit shall be required for all development within the community to ensure conformance with the provisions of this ordinance.”
  • Zoning districts · by state lawNo county rule

    Unincorporated La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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 La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us.

    • 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.”
  • Well permitLimited

    Water wells in La Salle County within the boundaries of the Wintergarden Groundwater Conservation District.

    • The District boundaries are coextensive with La Salle, Dimmit, and Zavala counties.
    • A new non-exempt well requires an application and permit before drilling or operation.
    • Domestic or livestock wells are exempt from District permitting only when on a tract larger than 10 acres, incapable of producing more than 25,000 gallons per day, and not supplying a subdivision requiring plat approval under Chapter 232, Local Government Code.
    • Exempt wells must be registered with the District before drilling and before a change in owner/operator or exempt use.
    • The exempt-well registration must include the proposed location, depth or water-bearing formation, exemption conditions, well completion record, and any other information requested by the Board, and must be accompanied by the applicable fee.
    • The General Manager must approve the registration and issue a certificate before an exempt well may be drilled.
    • A well that ceases to qualify for an exemption, changes use, or transports groundwater outside the District requires a permit.

    domestic/livestock exemption tract size: > 10 acres (The well must also be incapable of producing more than 25,000 gallons per day and must not supply a subdivision requiring plat approval.) · domestic/livestock exemption production capacity: <= 25000 gallons per day (The well must satisfy all other Rule 9.1(a) conditions.) · exempt well registration timing: before drilling (Registration is also required before change in owner/operator or exempt use.)

    “No person may commence to drill or operate a new non-exempt well without first applying for and obtaining a well permit from the District.”
  • Subdividing landRegulated (with conditions)

    Subdivision platting and subdivision road and drainage work in rural and unincorporated La Salle County.

    • The county commissioners court reviews and approves subdivision platting and wastewater treatment for rural areas.
    • The cited standards apply to subdivision road and drainage work commenced on or after April 8, 2013.
    • A specific variance may be granted by Order of the LaSalle Commissioners Court.
    • The standards may be amended or replaced by the Court.
    • The official model-rules page provides a plat checklist, plat application, platting-process summary, and plat fee schedule.
    “These standards and specifications, having been adopted by the LaSalle Commissioners Courts Court by an Order of the Court on the 8th day of April, 2013, are declared to be in and of effect for all subdivision road and drainage work commenced on or after this date.”
  • Driveway accessRequired

    Driveways outside corporate city limits connecting to La Salle County road right-of-way.

    • County approval applies outside corporate city limits when the driveway is in County road right-of-way.
    • Driveways entering state roads are subject to TxDOT rather than the County under the subdivision regulation’s stated rule.
    • The permit application must include the listed property, classification, location, drawing, and contact information.
    “A Driveway permit is required for all driveways onto La Salle County road right of way.”
  • Building in a floodplainRequired

    Development within areas of special flood hazard under La Salle County’s flood-damage-prevention ordinance.

    • The ordinance applies only to areas of special flood hazard within La Salle County’s jurisdiction.
    • A Floodplain Development Permit is required for all development within the community.
    • No structure or land may be located, altered, or have its use changed without compliance with the ordinance and other applicable regulations.
    • New construction and substantial improvements must satisfy anchoring, flood-damage-minimization, flood-resistant-material, utility, sewage, and onsite-waste-disposal requirements.
    • Subdivision proposals and manufactured-home parks/subdivisions must meet development-permit requirements, provide adequate drainage, and locate utilities to minimize or eliminate flood damage.
    • The County Judge is the Floodplain Administrator and may review, approve, or deny development-permit applications.
    • The ordinance provides specific variance conditions, including historic-structure exceptions, certain lots of one-half acre or less, and a prohibition on variances in designated floodways when flood levels would increase.

    substantial improvement threshold: >= 50 percent of structure market value (The ordinance definition excludes minimum necessary corrections of identified health, sanitary, or safety violations and qualifying historic-structure alterations.) · small-lot variance threshold: <= 0.5 acre (The lot must be contiguous to and surrounded by lots with existing structures constructed below base flood level, and the Article 4 Section C factors must be considered.)

    “A Floodplain Development Permit shall be required for all development within the community to ensure conformance with the provisions of this ordinance.”
  • Permit feesPublished (with conditions)

    Published La Salle County fees for specified county permits, including pipeline and access-driveway permits.

    • The published pipeline schedule distinguishes private-company non-boring, boring, surface-disrupting, water-line-easement, and public-company categories.
    • The driveway manual separately publishes fees by driveway use category.

    private company non-boring under surface easement fee: 4000 USD · private company boring on surface easement fee: 500 USD · private company disrupting surface under surface easement fee: 4000 USD · water line easement fee: no fee · public company fee: 100 USD · residential driveway fee: 50 USD · operating ranch/farm driveway fee: 50 USD · multi-family homes and RV park driveway fee: 400 USD · commercial business driveway fee: 700 USD · industrial driveway fee: 1000 USD

    “PRIVATE COMPANY: [...] UNDER SERFACE EASEMENT --$4,000 [...] PUBLIC COMPANY--$100.00”
  • Permit processPublished (with conditions)

    Access-driveway construction or reconstruction outside corporate city limits when the driveway is in La Salle County road right-of-way.

    • The applicant must contact the County Clerk, complete and submit the permit, and provide applicant/property and driveway information.
    • The County Clerk or designated representative reviews the submission; the permit is issued after requirements are satisfied.
    • No construction may begin until the application is processed and approved.
    • Inspection may require final-grade and line approval; unapproved construction may be closed until resolved.
    • The driveway permit is required for all driveways onto La Salle County road right-of-way.
    • The manual was adopted April 13, 2015.
    “No construction shall be started until [...] approved by La Salle County.”
  • County-wide zoningAbsent

    No county zoning is offered or applicable; Texas counties lack general zoning authority over unincorporated land.

    La Salle County, TX - Permits & Applications ↗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:”
  • Who permits septicMixed

    On-site sewage facilities, including septic systems, throughout Texas

    • In most areas, local governments act as TCEQ-authorized agents and administer the OSSF program.
    • The TCEQ regional office is the permitting authority where a local jurisdiction has not been authorized.
    • Local permitting programs may be more stringent than state minimums.
    “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 permitLimited

    OSSFs, including septic systems and holding tanks, located in La Salle County, subject to the applicable local permitting program.

    • A permit is required to construct, install, alter, extend, or repair an OSSF.
    • Local permitting programs can be more stringent than state minimums.
    • An OSSF may be exempt if it satisfies all 30 TAC Chapter 285 requirements and the 10-acre rule: a licensed site evaluation; 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; 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 OSSFs may also be exempt if installed before the applicable date, are not creating a nuisance, are not in need of repair, and have had no significant increase in use or other alteration.
    • Applications and planning materials must be submitted to the permitting authority; where no local jurisdiction has been authorized, the TCEQ regional office is the permitting authority.
    • The permitting authority must approve or deny the application within 30 days of receipt.

    10-acre exemption tract size: >= 10 acres (Single-family dwelling and all other stated exemption conditions must be satisfied.) · OSSF setback for 10-acre exemption: >= 100 feet from property line (All parts of the OSSF.) · emergency repair reporting deadline: 72 hours after repairs begin (Repairs must be reported in writing to the permitting authority.) · permit application review deadline: 30 days from receipt (Permitting authority must approve or deny.)

    “A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.”
    2 more reviewed findings on this topic
    • Required — Construction, installation, alteration, extension, repair, or operation of an OSSF in La Salle County, subject to stated exemptions.
      “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 inspectionLimited

    OSSF installation and, where applicable, maintenance inspections in Texas

    • Authorized agents or their designated representatives inspect system installation.
    • Some permitting authorities impose more stringent requirements.
    • Maintenance-provider inspection and reporting requirements apply to systems and circumstances governed by 30 TAC §285.91(4).
    • Electronic monitoring may reduce reporting to every six months where the stated monitoring conditions apply.

    reduced maintenance reporting interval with qualifying electronic monitoring: 6 months (only where the system uses the specified electronic monitoring, automatic notification, and disinfection monitoring)

    “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.”
    One more reviewed finding on this topic
    • Limited — Inspection of OSSFs in La Salle County when a designated representative is acting for an authorized agent and the system has been issued an authorization to construct.
      “They perform site evaluations (when it is part of their job duties), complaint investigations, system evaluations, and inspections of OSSFs”
  • Off-grid sanitationLimited

    Off-grid wastewater sanitation using an OSSF, septic system, or holding tank in La Salle County.

    • OSSF permitting requirements apply unless a stated exemption applies.
    • The 10-acre exemption requires a licensed site evaluation, 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-property effluent disposal, and no other dwelling on the tract.
    • Emergency repairs are exempt from permitting only if reported in writing within 72 hours after repairs begin.
    • Local permitting programs may be more stringent than state minimums.

    10-acre exemption tract size: >= 10 acres (All other TCEQ conditions must be satisfied.) · OSSF setback for exemption: >= 100 feet from property line (All OSSF parts.)

    “including septic systems and holding tanks.”
  • 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 building permits, inspections, or occupancy approvals in La Salle County.
  • Inspections — Building inspections in La Salle County, including unincorporated areas.
  • Certificate of occupancy — Certificates of occupancy or equivalent occupancy approvals in La Salle County, including unincorporated areas.
  • Local zoning — County-level zoning regulation in La Salle County, including unincorporated areas; incorporated municipalities may administer separate municipal land-use rules.
  • Mandatory utility hookup — Required connection to public water or sewer utilities for property in La Salle County.
2 more unanswered
  • Agricultural exemption
  • Short-term rentals

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 La Salle County, Texas

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

La Salle County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 2,392 people within 15 miles and low administrative friction for a quiet rural property. Watch-outs: thin water margin (22.6″/yr rainfall) and elevated mid-century heat, water, rain, or wildfire exposure.

Do you need a building permit in La Salle County, Texas?

La Salle County requires a building permit only in limited cases (such as floodplains or specific zones), and it has no county-wide zoning. Onsite septic is permitted by La Salle County (TCEQ-authorized agent for OSSF) / Texas Commission on Environmental Quality. 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 La Salle County?

Living in an RV on your own land in La Salle County is allowed: Unincorporated La Salle County: no county rule sets this, because Texas law gives zoning power only to certain counties, and La Salle County has no zoning ordinance. The county legal census found no county zoning ordinance, citing co.la-salle.tx.us. 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 La Salle County, Texas?

Land in La Salle County runs about $2,050 per acre, based on the latest county data.

What is the water situation in La Salle County?

La Salle County gets about 22.6" of rain a year, with severe drought in roughly 22.1% of years.

How remote is La Salle County?

A typical private-land location has about 2,392 people within 15 miles and 2,058,588 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

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How La Salle compares in Texas

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