Building permits, zoning and land rules in Aransas County, Texas
63Index Score / 100 #83 of 254 in Texas
Unincorporated Aransas County, Texas requires a Development Permit before covered construction or site work and a Repair Permit for substantial improvements12. County minutes from 2024 state that unincorporated Aransas County has no building codes, but floodplain and watershed requirements still apply34. Aransas County has no general county zoning; septic permits come from Aransas County Environmental Health, with additional town approval inside Fulton567.
At a glance
Building permit
Development or Repair Permit required for covered work in unincorporated areas1
Building inspections
Limited to floodplain-regulated development; no general residential program confirmed8
Occupancy approval
Development Permit must state the use conforms; no separate general certificate confirmed9
Zoning
No general county zoning; municipal rules can differ510
Septic permit
Required through Aransas County Environmental Health1112
RV occupancy
Permit required before occupancy or utility connection outside an existing RV park13
Subdivision lot size
Minimum depends on public water and sewer availability14
Owner-builder
Some state trade-license exemptions apply; no county permit exemption confirmed1516
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Do you need a building permit in Aransas County, Texas?
Covered work in unincorporated Aransas County requires a county Development Permit or Repair Permit1. The floodplain order requires an approved county permit before development, a broad category that includes building, construction, enlargement, alteration, repair, filling, grading, paving, excavation and drilling1. Aransas County applies floodplain and watershed requirements to construction, placement, alteration, repair, use and maintenance of buildings4. County commissioners court minutes from February 2024 say the county has no building codes for the unincorporated area, while the cities have their own requirements3. A Development Permit covers construction or placement of a building or structure; a Repair Permit covers substantial improvements, including alterations or repairs costing at least 50% of the appraisal-district appraised value, which must meet new-building requirements2. Ordinary minor repairs need Floodplain Administrator approval even when no permit is required2. New residential construction must provide at least 18 inches of freeboard above the Base Flood Elevation, or above the highest adjacent natural ground when maps or studies are unavailable17. Floodplain-regulated projects are subject to county inspection authority, but that does not establish a general residential building-inspection program outside the regulated development8.
Who issues building permits in Aransas County, and how do you reach them?
For an unincorporated parcel, start with the Aransas County Road & Bridge Department and the Floodplain Administrator18. Applications and required project documents go to the Floodplain Administrator; the county may approve the application, approve it with conditions or deny it19. The county must act on a complete application by the 30th day after receipt, while an incomplete filing must receive written notice of missing documents by the 30th day after submission19. An application is treated as abandoned after 6 months without an issued permit, although extensions of up to 90 days may be granted for cause19. Commissioners Court fees must be paid before issuance, and the current floodplain fee schedule is available from the Floodplain Administrator or county website20. Septic approval is separate and must be obtained from Environmental Health before the building permit can issue1721. Fulton requires town permits for manufactured-home construction or installation22. Corpus Christi and Aransas Pass, cities that reach into Aransas County, issue their own building permits2324. Aransas County Environmental Health handles county septic permitting; Fulton also requires town council approval67.
Does Aransas County have zoning?
Aransas County does not have general county zoning; municipalities have zoning authority that the county generally does not share5. In unincorporated Aransas County, county zoning therefore does not set a minimum dwelling size, residential setback, lot coverage or building height25. Fulton sets town zoning; Corpus Christi, which reaches into Aransas County, sets city zoning2627. Aransas County Environmental Health handles county septic permitting, with town council approval also required in Fulton67. Subdivision rules still set minimum lot sizes for covered land divisions: at least 1 acre without public water or sewer, 0.5 acre with public water but no public sewer, and 0.25 acre with both, subject to the stated planned-unit-development exception28. The regulations cover divisions into two or more parcels and exempt some qualifying divisions, so ask Road & Bridge whether a recorded plat or letter of plat exemption is needed1418.
How do septic permits work in Aransas County?
Aransas County requires a permit before constructing, modifying or making non-emergency repairs to an on-site sewage facility through the Aransas County Environmental Health Department111221. The published fee schedule lists $400 for a new residential installation permit, $80 for an OSSF verification and $500 for a multi-unit, rental-community or commercial OSSF permit29. Texas's narrow 10-acre exemption applies only when every listed condition is met, including a site evaluation, one single-family dwelling on at least 10 acres, no nuisance or groundwater pollution, disposal on the same tract and every system component at least 100 feet from the property line30. Only about 12.6% of Aransas County soils avoid severe limitations for a conventional drain field, so make the site evaluation an early purchase contingency31. County materials do not establish one inspection schedule for every system; ask Environmental Health which installation and maintenance inspections the proposed design requires3221.
Can you live in an RV or tiny home on your land in Aransas County?
Unincorporated Aransas County has no general county zoning rule prohibiting RV, tiny-home, manufactured-home or temporary-camping occupancy25. That does not make occupancy permit-free. Every RV outside an existing RV park requires a permit before utility connection or occupancy13. The storage exception applies only at a homeowner's primary residence when the RV remains unoccupied, disconnected from water and wastewater, currently licensed and inspected, and capable of highway use13. A tiny home that falls within covered development needs a Development Permit, and its wastewater system needs county approval unless every condition of a state exemption is met13330. For a new rental community, available public water or sewer must be used; otherwise the proposed OSSF needs Environmental Health approval and licensed design and installation34. Give Road & Bridge the parcel address and proposed setup before delivery, then confirm wastewater approval with Environmental Health1821.
Building a home in Aransas County: the steps, in order
Confirm parcel jurisdiction before using the unincorporated-county rules; municipal zoning authority differs from county authority10.
Check the recorded plat and ask Road & Bridge whether subdivision approval or a plat-exemption letter is required1418.
Arrange the septic site evaluation, submit to Environmental Health and obtain the septic permit before the building permit can issue111721.
File the signed Development Permit application and project-specific documents with the Floodplain Administrator35.
Obtain the current floodplain fee schedule, pay the adopted fee and post the approved permit on site2035.
Confirm utility eligibility; for development covered by county subdivision regulations, plat approval certification is required before water, gas, sewer, electricity or other utility connections36.
For state-highway access, submit TxDOT Form 1058 and wait for the executed permit before construction on the right-of-way37. New rental-community driveways crossing a county right-of-way require county approval instead38.
Ask the Floodplain Administrator which inspections and conformity documentation apply before occupancy89.
What should you check before buying land in Aransas County?
Covered construction in unincorporated Aransas County needs a Development Permit, while regulated subdivisions can require county approval before water, gas, sewer, electricity or other utility connections136. In an adopted regulatory floodway, ordinary encroachment must demonstrate no increase in base-flood levels39. In mapped Zones A or AE without a designated floodway, cumulative development generally may not raise the base-flood water surface more than 1 foot without the specified federal process40. Lots in covered subdivisions may use individual wells and septic subject to the regulations, but a future sewer connection covenant applies when public sewer reaches the lot boundary41. We could not confirm the private-well permit rule or a general residential county-driveway permit rule; ask Environmental Health about wells and Road & Bridge about county-road access2118. For a state-highway driveway, obtain the executed TxDOT access permit before construction37.
Watch-outs
Repairs or alterations costing at least 50% of the appraisal-district appraised value must meet new-building requirements in unincorporated Aransas County2.
Only about 12.6% of Aransas County soils avoid severe limitations for a conventional septic drain field, so test wastewater feasibility before fixing the building site31.
No general county zoning does not cancel floodplain permits, septic approval, subdivision standards or utility conditions517111442.
An RV outside an existing RV park needs a permit before utility connection or occupancy in unincorporated Aransas County13.
New short-term rentals in Rockport must register before operating; in Aransas Pass, a city that reaches into Aransas County, registration is required before operation or advertising4344.
Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.
Corpus Christi-Nueces County Public Health District
County Env. Services Dept.
County Community Affairs
County locator
Aransas County in Texas
63
County map
Aransas County highlighted among the Texas counties · colored by Index score
How Aransas County scores
Seclusion71100% ev.
Self-Sufficiency2996% ev.
Admin Boringness8290% ev.
Durability50100% ev.
Property Autonomy71100% ev.
Carry Cost77100% 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 →
$302kTypical home
1%Property tax
$1,831Land / acre
36.1"Annual rain
16.2% of yrsSevere drought
7.3 / yr (+6.4)Mid-century 100°F days
25.9 daysMid-century dry spell
3.06" (+4.6%)Mid-century 1-day rain
1.37×Wildfire change factor
100%Forward climate coverage
$1,812Home insurance / yr
2.1% / yrInsurance growth
0%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
627,069People within 2 hr
20,744Radius comparison (15 mi)
100.7People / sq mi
33.3%Federal land
100%Land at 15% slope or less
12.6%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Aransas County
Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
Aransas County rules
Building permitLimited
Development, including building, construction, enlargement, alteration, repair, or improvement, regulated by the Aransas County floodplain order in unincorporated areas.
The order requires an approved County permit from the Floodplain Administrator before covered work.
The order defines development broadly, including building or structure construction, filling, grading, paving, excavation, or drilling.
Subdivision regulations additionally require a recorded plat or letter of plat exemption before a building permit in covered unincorporated subdivisions.
The order is identified as effective 2019-12-01.
“No person(s), firm, or corporation shall erect, construct, enlarge, alter, repair, or improve any building, structure, or manufactured home without first obtaining an approved County permit from the Floodplain Administrator.”
One more reviewed finding on this topic
Limited — Development and repair of buildings, structures, and manufactured homes in unincorporated Aransas County under the county floodplain regulations.
“These regulations shall apply to all unincorporated areas within the jurisdiction of Aransas County, Texas.”
Building code adoptedPartial
Construction, placement, erection, alteration, repair, use, location, or maintenance of buildings and structures in unincorporated Aransas County subject to the County's floodplain and watershed-protection requirements.
A Development Permit is required before construction, placement, or erection of any building or structure.
A Repair Permit is required before substantial improvements; ordinary and minor repairs may be made with Floodplain Administrator approval without a permit if they do not violate the regulation.
Permit applications must be completed and signed and include documentation required for the work and flood-zone designation.
In Special Flood Hazard Areas, a registered professional engineer or architect must develop and review structural designs, specifications, and plans and certify compliance with elevation and anchoring requirements.
A permit does not relieve the applicant of the responsibility to obtain other required federal, state, or local permits.
The official 2020 workshop minutes describe adoption of general International Residential and International Fire Codes as a matter under consideration; they do not confirm that those general codes were adopted.
permit review deadline: 30 days (after receipt of a completed application) · substantial improvement threshold: >= 50 percent of appraised building value (alterations, improvements, or repairs at or above this threshold must conform to requirements for new buildings) · permit license period: 1 year (the permit is construed as a license to proceed with work for one year)
“Provisions of this regulation shall apply to all new construction or development, proposed subdivisions and to the construction, alteration, repair, use, location, or maintenance of every building or structure or any appurtenances connected to or attached to such buildings or structures, within all unincorporated areas within the jurisdiction of Aransas County, Texas.”
2 more reviewed findings on this topic
Not adopted — International Residential Code and International Fire Code adoption for unincorporated Aransas County as of the January 27, 2020 Commissioners' Court workshop
“Katherine: Yes sir, because we have nothing now . But my recommendation would be to first look at the fire code”
Not adopted — County residential building-code adoption and enforcement in unincorporated Aransas County, as described in the official February 12, 2024 Commissioners Court minutes.
“We don't have building codes in the county so in the city they have those requirements and regulations that they can fall back on whereas people basically living in just about anything in the county they are al lowed to do that.”
InspectionsLimited
Floodplain-regulated development in unincorporated Aransas County.
The floodplain order contains an inspection section and permits the Floodplain Administrator or authorized representative to enter buildings, structures, or premises to perform duties imposed by the regulations.
This does not establish a general residential building-inspection program outside floodplain-regulated development.
“The Floodplain Administrator, or his duly authorized representative, may enter any building, structure or premise to perform any duties imposed upon him by these regulations.”
Certificate of occupancyLimited
Occupancy of development regulated by the Aransas County floodplain order.
The order requires a Development Permit stating that the use conforms before occupancy.
This is not evidence of a separately named general certificate-of-occupancy program.
“It shall be unlawful to use, occupy any building, development, or premises or part thereof hereafter created, erected, changed, converted, altered, or enlarged in its use or structure until a Development Permit has been issued by the Floodplain Administrator stating that the use of the development conforms to the requirements of this Order.”
County-wide zoningAbsent
General county zoning authority in Aransas County.
The county plan states that municipalities have zoning authority while counties do not have the same authority.
The plan notes a limited statutory exception for specific recreation areas under Texas Local Government Code Title 7, Subtitle B.
“One challenge that the county faces in addressing flood risk is the inability to implement higher building standards and zoning regulations within its jurisdiction. [...] However, counties do not have that same authority.”
Local zoningVaries (with conditions)
Aggregate local zoning across Aransas County; incorporated municipalities may administer zoning within their jurisdictions, while the county generally does not.
This is an aggregate county claim and does not attribute municipal ordinances to the county.
The official plan identifies the City of Aransas Pass, Town of Fulton, and City of Rockport as incorporated communities in the county.
“In Texas, municipalities are given zoning authority to regulate land uses within its jurisdictions. However, counties do not have that same authority.”
Zoning districts · by state lawNo county rule
Unincorporated Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas County's own reviewed answer confirms it has no county-wide zoning.
Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Minimum dwelling size · by state lawNo county rule
Unincorporated Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 (with conditions)
Constructing, modifying, or repairing an on-site sewage system in Aransas County.
A permit is required before constructing or making non-emergency repairs to a septic system.
The permit must be approved and required information submitted to the Aransas County Department of Environmental Health.
The page states that both state and county laws apply and that state rules establish minimum standards while local authorities may adopt more stringent rules if approved by TCEQ.
“Prior to constructing, modifying, or repairing an on-site sewage system, a permit must be approved and the required information submitted to the Aransas County Department of Environmental Health.”
Septic permitRequired
Constructing, modifying, or repairing an on-site sewage system in Aransas County.
State and county laws require a permit before constructing or making non-emergency repairs.
The required information must be submitted to the Aransas County Department of Environmental Health.
The county page states that the page is being revised and updated regularly.
“State and County laws require that a permit be issued by the department prior to constructing or making non-emergency repairs to a septic system.”
One more reviewed finding on this topic
Required — Construction, modification, repair, or non-emergency repair of an OSSF in Aransas County.
“State and County laws require that a permit be issued by the department prior to constructing or making non-emergency repairs to a septic system.”
Off-grid sanitationLimited
Lots using individual water wells and on-site sewage facilities in subdivisions.
Individual water wells and on-site sewer facilities may be used where the subdivision note applies.
Owners are responsible for those services and must comply with the restrictions in the subdivision regulations and OSSF requirements.
A future connection covenant applies when public sewer becomes available at the lot boundary, as stated in the source.
“IT IS HEREBY ACKNOWLEDGED that neither waste water treatment facilities or potable water will be provided to any lots in the subdivision platted hereon. Let it be known that each individual property owner shall be solely responsible for these services with the following restrictions:”
One more reviewed finding on this topic
Limited — Sanitation for new rental communities in unincorporated Aransas County.
“If public water and/or sewer is available, the proposed Rental Community shall use the available public utilities. [...] All on-site sewer facility designs shall be submitted to the Aransas County Environmental Health Department for approval, permitting, and future maintenance inspections as required.”
Mandatory utility hookupWater and sewer (with conditions)
Utility connections for subdivisions subject to Aransas County subdivision regulations.
Plat approval certification is required before utility service connection, including water, gas, sewer, and electricity.
The subdivision regulations also provide lot-size rules based on availability of public water and sewer.
This claim does not establish that every parcel countywide must connect to both public water and public sewer.
“Connection to public utilities on new construction such as electricity, water or sewer shall be denied by the utilities until applicant provides a Certificate of Approval from the County.”
One more reviewed finding on this topic
Conditional — Utility connections for subdivisions and development governed by Aransas County subdivision regulations.
“Plat approval certification is required before any utility service connection, including, but not limited to, water, gas, sewer and electricity, may be made or any such utility service provided:”
Subdividing landRegulated (with conditions)
Subdivision and development in unincorporated Aransas County and specified extraterritorial jurisdictions.
The regulations apply to unincorporated land beyond the territorial boundaries established by agreement with Rockport and Aransas Pass.
Parcels bisected by the boundary fall entirely under the adjacent city.
Exemptions include certain pre-existing plats, qualifying relative divisions, lots of at least 10 acres fronting an existing state or county road, political-subdivision land, certain veterans' land, court-ordered divisions, and state-law exemptions.
Lots must be at least one acre without public water or sewer, one-half acre with public water but no public sewer, or one-quarter acre with both public water and sewer, subject to the stated PUD exception.
minimum lot size without public water or sewer: >= 1 acre · minimum lot size with public water but without public sewer: >= 0.5 acre · minimum lot size with public water and sewer: >= 0.25 acre (Lots smaller than one-quarter acre are only available through negotiations with the county in establishing a PUD.)
“The provisions of these subdivision regulations shall apply to: a. The division of land into two (2) or more lots, tracts, reserves, sites or parcels for the purpose of sale, lease, or development.”
One more reviewed finding on this topic
Regulated (with conditions) — Filing plats and subdivision or development of land under Aransas County subdivision regulations.
“The following rules and regulations are hereby adopted as the regulations of Aransas County, Texas, and shall be applicable to the filing of plats and the subdivision of land”
Driveway accessRequired
Driveways over county rights-of-way for new rental communities in unincorporated Aransas County.
Driveways over state rights-of-way require TxDOT permits instead.
The county order applies specifically to rental communities.
“All driveways constructed over County rights-of-way shall be permitted through the Aransas County Road & Bridge Department and constructed to the County's adopted standards.”
Building in a floodplainRequired
Development, construction, placement, erection, enlargement, alteration, repair, or improvement of buildings, structures, and manufactured homes in unincorporated areas of Aransas County.
The order applies to all unincorporated areas within Aransas County; incorporated municipalities are outside this claim's scope.
A Development Permit is required before construction, placement, or erection of any building or structure.
A Repair Permit is required before substantial improvements to any building or structure.
Ordinary and minor repairs may be made with Floodplain Administrator approval without a permit, provided they do not violate the regulation.
Permit applications and required documentation must be filed with the Floodplain Administrator using a completed and signed application.
Required documentation depends on the work type and flood-zone designation and may include an elevation hub certificate, utility verification, survey and plat drawings, scaled specifications and drawings, professional engineer or architect certification in Special Flood Hazard Areas, and other information reasonably required by the Floodplain Administrator.
If a compliant completed application and supporting documents are received, the Floodplain Administrator shall issue a permit no later than the 30th day after receipt.
A permit may not be issued until applicable Commissioners Court fees are paid; the current fee schedule is available from the Floodplain Administrator's office or the County website.
An approved permit is a license to proceed for one year, subject to possible extensions not exceeding 180 days each for cause.
A floodplain permit does not relieve the applicant of obtaining other required federal, state, or local permits.
The recipient must sign the permit, construct strictly in accordance with approved plans and conditions, and post a copy of the approved permit on site.
No building permit will be issued until an Aransas County Environmental Health Department septic system permit has been obtained.
All recreational vehicles not placed in an existing RV park require a permit before connection to utilities or occupation; RVs stored on a homeowner's lot where the home is the primary residence are exempt only if they remain unoccupied, disconnected from water and wastewater, currently licensed and inspected, and capable of highway use.
For subdivisions and manufactured-home parks or subdivisions, floodplain permit requirements also apply, and a stormwater management plan is required for proposals greater than 50 lots, greater than one acre, or proposing more than 20 percent impervious cover.
permit issuance deadline: 30 days after completed application is received (only if the application and supporting documents comply with currently adopted regulations) · permit validity: 1 year (extensions for cause may be allowed, each not exceeding 180 days) · stormwater plan lot trigger: > 50 lots (applies to subdivision proposals and other proposed development, including manufactured-home parks and subdivisions) · stormwater plan land-area trigger: > 1 acre (applies to subdivision proposals and other proposed development, including manufactured-home parks and subdivisions) · stormwater plan impervious-cover trigger: > 20 percent (applies to proposed increase in impervious cover)
“Development Permit [...] shall be required”
4 more reviewed findings on this topic
Limited — Fill, new construction, substantial improvements, and other development within an adopted regulatory floodway in unincorporated Aransas County.
“not result in any increase in flood levels”
Limited — New construction, substantial improvements, and other development, including fill, within Zones A and AE on the FEMA FIRM where no regulatory floodway has been designated in unincorporated Aransas County.
“will not increase [...] more than one foot”
Required — Development regulated by the Aransas County Floodplain Management and Watershed Protection Order.
“A Development Permit or Repair Permit shall be required to ensure conformance with the provisions of these regulations for any development as defined in these regulations.”
Required — Development and substantial improvements in unincorporated areas of Aransas County.
“These regulations shall apply to all unincorporated areas within the jurisdiction of Aransas County, Texas. [...] A Development Permit or Repair Permit shall be required to ensure conformance with the provisions of these regulations for any development as defined in these regulations.”
Permit feesPublished
Aransas County Environmental Health permit fees, including OSSF fees.
The 2026 schedule lists environmental-health fees; the floodplain order states that the current floodplain fee schedule is available from the Floodplain Administrator or county website, but the numeric floodplain schedule was not located.
Listed OSSF fees are $400 for a new residential installation permit, $80 for OSSF verifications, and $500 for multi-unit/rental communities/commercial OSSF permits.
Published (with conditions) — Fees for permits governed by the Aransas County floodplain order.
“The current applicable fee schedule may be obtained at the Floodplain Administrator's office or on the County's web site.”
Permit processPublished (with conditions)
Floodplain development-permit process in unincorporated Aransas County.
Applications may be approved, approved with conditions, or disapproved.
A completed application must be acted on no later than the 30th day after receipt.
An incomplete application must be followed by written notice of required documents no later than the 30th day after submission.
An application is deemed abandoned six months after filing unless a permit is issued, with possible extensions of up to 90 days each for cause.
The permit must be posted on site after approval.
application decision deadline: <= 30 days · application abandonment period: 6 months (Extensions for cause may not exceed 90 days each.)
“The Floodplain Administrator shall approve, approve with conditions, or disapprove an application for a building permit with plans as filed or amended not later than the 30th day after the date the completed application is received.”
One more reviewed finding on this topic
Published (with conditions) — Development and repair permits under the Aransas County Floodplain Management & Watershed Protection Order.
“The Floodplain Administrator shall approve, approve with conditions, or disapprove an application for a building permit with plans as filed or amended not later than the 30th day after the date the completed application is received. [...] An application for a development permit shall be deemed to have been abandoned six ( 6) months after the date of filing, unless before then a permit shall have been issued”
Texas rules that apply here
Owner-builder exemptionConditional
An owner performing electrical, plumbing, or air-conditioning and refrigeration work on the owner's own residence or homestead in Texas.
Electrical work is exempt from state electrician licensing when performed on a dwelling the person owns and resides in.
Plumbing is exempt from state plumbing licensing when performed by the property owner in the property owner's homestead.
Air-conditioning and refrigeration contracting is exempt from the applicable state registration requirements when performed in a building owned solely by the person as the person's home.
These exemptions do not establish a blanket exemption for every construction trade or contractor-regulated activity.
“A person who perform electrical work on a dwelling that they own and reside in is not required by the state to be licensed as electricians.”
One more reviewed finding on this topic
Conditional — Electrical work on a dwelling owned and occupied by the property owner in Texas.
“A person who perform electrical work on a dwelling that they own and reside in is not required by the state to be licensed”
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 — OSSFs using secondary treatment or drip irrigation in Texas.
“A system using secondary treatment or drip irrigation must be inspected by a valid maintenance company once every four months, or be maintained by the single family homeowner, where allowed.”
Well permitLimited
Drilling, equipping, operating, or completing a water well, or substantially altering a well or well pump, where the well is within a groundwater conservation district in Texas.
A groundwater conservation district must require a permit except as provided by Texas Water Code §36.117.
A district may not require a permit or permit amendment for maintenance or repair that does not increase production capability above the authorized or permitted production rate.
Permit applications must be in writing and sworn.
Whether a particular private well is exempt or subject to additional district requirements depends on the applicable groundwater conservation district's rules.
permit application form: in writing and sworn
“Except as provided by Section 36.117, a district shall require a permit for the drilling, equipping, operating, or completing of wells or for substantially altering the size of wells or well pumps.”
county zoning authorityLimited
Texas counties adopting zoning regulations for specified unincorporated or otherwise specially defined areas.
Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
Other Chapter 231 subchapters address special areas including the Amistad Recreation Area in Val Verde County, military zones, certain lakes, the El Paso Mission Trail Historical Area, Lake Somerville, and Falcon Lake in Zapata County.
The cited statute was enacted effective September 1, 1987; the Falcon Lake subchapter was added effective June 15, 2007, and amended effective September 1, 2009.
Padre Island distance from publicly owned park or recreational development: <= 2 miles (Area must be outside a municipality and in Cameron or Willacy County.) · Padre Island distance from beach, wharf, or bathhouse: <= 2 miles (The beach, wharf, or bathhouse must be used by at least 500 persons annually.)
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
One more reviewed finding on this topic
Limited — County zoning authority over unincorporated land in Texas, where a specific statutory grant applies.
“As you suggest, a county has very limited and specific zoning authority, and none that may be used to regulate construction or operation of the proposed facility.”
county building authorityLimited
Texas counties adopting and enforcing fire-code building permits for specified buildings in unincorporated areas and applying residential building-code standards in certain counties.
Under Section 233.061, the county must have a population over 250,000 or be adjacent to a county with a population over 250,000.
Under Section 233.062, the fire code applies only to commercial establishments, public buildings, and multifamily residential dwellings consisting of four or more units constructed in an unincorporated area.
The fire code does not apply to an industrial facility having a fire brigade that conforms to Occupational Health and Safety Administration requirements.
A covered applicant must submit a plan and a commissioners-court-set application fee; the county must issue or deny the permit within 30 days, and failure to act within 30 days approves the construction for purposes of the subchapter.
The fire code must conform to the International Fire Code or Uniform Fire Code as those codes existed on May 1, 2005, or establish protective measures exceeding those standards; later editions may be adopted.
Residential standards under Section 233.152 apply only if the county adopts a resolution or order and the county is within 50 miles of an international border or has a population over 100.
Those residential standards apply only to new single-family-house or duplex construction beginning after September 1, 2009; manufactured or modular structures governed by Occupations Code Chapters 1201 or 1202 are excluded from the definition of new residential construction.
A municipality's building code controls in its extraterritorial jurisdiction, and Section 233.152 does not authorize county prior approval of new residential construction or county zoning regulations.
Fire-code inspection and permit fees may be charged under a fee schedule based on building type, limited to amounts necessary to administer and enforce the subchapter; inspection fees must be reasonable and reflect approximate inspection costs.
county population threshold for fire-code authority: > 250000 persons (A county adjacent to a county over 250,000 also qualifies.) · multifamily residential dwelling threshold: >= 4 units (The fire code applies only to covered buildings constructed in an unincorporated area.) · residential-code border distance: <= 50 miles (Alternative qualification is county population over 100.) · application decision period: 30 days (If the commissioners court does not issue or deny the permit within 30 days after receiving the application and fee, construction is approved for purposes of the subchapter.) · residential standards effective construction date: > 2009-09-01 (Applies only to new residential construction that begins after September 1, 2009.)
“The commissioners court of a county with a population of over 250,000 or a county adjacent to a county with a population of over 250,000 may adopt a fire code and rules necessary to administer and enforce the fire code. [...] The fire code applies only to the following buildings constructed in an unincorporated area of the county: (1) a commercial establishment; (2) a public building; and (3) a multifamily residential dwelling consisting of four or more units.”
One more reviewed finding on this topic
Limited — County fire-code adoption and building-permit authority for specified buildings in unincorporated areas of qualifying Texas counties, including multifamily residential dwellings of four or more units.
“The commissioners court of a county with a population of over 250,000 or a county adjacent to a county with a population of over 250,000 may adopt a fire code and rules necessary to administer and enforce the fire code.”
Inside cities and towns in Aransas County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Short-term rentalsLimited
Short-term rentals within the City of Aransas Pass.
Beginning February 1, 2026, all short-term rentals, including AirBnB, VRBO, and rentals advertised for no longer than 30 consecutive days, must be registered with the city.
Registration must occur before using a dwelling as a short-term rental or advertising it for short-term rental use.
The operator must submit an online application to the Office of Development Services and designate a local contact available 24 hours per day, seven days per week, who must respond in person within one hour to complaints and take immediate remedial action.
Maximum occupancy is two persons per sleeping room plus four persons per dwelling; for residential properties over 3,250 square feet of conditioned living space, the additional allowance is six persons.
The maximum occupancy is determined when the permit is issued or renewed and cannot be increased by later construction without inspection, Building Official approval, and an amended registration form.
Registration costs $150 per unit; renewal costs $100; fees are not prorated. Registrations run on the calendar-year cycle and expire December 31, with a one-month renewal grace period.
Permits are not transferable. Owners delinquent in specified city fees are prohibited from registering until payment or an acceptable resolution.
Required seasonal trash toters apply March 1 through September 8, and vacation-rental units must be immediately evacuated upon notice.
registration start date: 2026-02-01 (The official city page states this applies to all short-term rentals.) · maximum occupancy: 2 persons per sleeping room + 4 persons per dwelling persons (For residential properties with more than 3,250 square feet of conditioned living space, use 2 persons per sleeping room + 6 persons.) · conditioned living-space threshold: > 3250 square feet (Additional occupancy allowance is six persons.) · initial registration fee: 150 USD per unit (Non-refundable.) · renewal fee: 100 USD (Registration fees are not prorated.)
“Prior to using a dwelling unit as a short-term rental or advertising in any manner the availability of the dwelling unit for short term rental, the operator must submit the following information on an online application with the Office of Development Services:”
One more reviewed finding on this topic
Limited — Privately owned dwellings used as short-term rentals within the City of Rockport.
“All existing short-term rental properties must be registered by December 1, 2024. Any new short-term rental properties must complete registration before operating.”
Still unanswered
We looked and could not find an official answer yet. Silence is not permission — ask the county directly.
Agricultural exemption — Agricultural exemptions from Aransas County development or construction requirements.
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 Aransas County, Texas
Is Aransas County a good place to live off-grid or homestead?
Aransas County scores 63/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property and manageable long-term carry cost. Watch-outs: workable self-sufficiency basics (36.1″/yr rainfall).
Do you need a building permit in Aransas County, Texas?
Aransas 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 Aransas County Department of Environmental Health (TCEQ authorized agent). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.
Can you live in an RV or tiny home on your land in Aransas County?
Living in an RV on your own land in Aransas County is allowed: Unincorporated Aransas County: no county rule sets this, because Aransas County has adopted no county zoning ordinance (Texas law lets some counties zone, but this one has not). Aransas 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 Aransas County, Texas?
Land in Aransas County runs about $1,831 per acre, based on the latest county data.
What is the water situation in Aransas County?
Aransas County gets about 36.1" of rain a year, with severe drought in roughly 16.2% of years.
How remote is Aransas County?
A typical private-land location has about 20,744 people within 15 miles and 910,138 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.
