Hardeman County, TX Building Permits, Zoning & Septic Rules

Unincorporated Hardeman County, Texas does not require a county building permit for a home, because Texas counties have only limited authority over residential construction outside incorporated cities¹. The county also has no zoning: Texas gives counties no general authority to adopt zoning ordinances for unincorporated land, and Hardeman County has none²³. Septic works through the state here: TCEQ's own authorized-agent lookup shows no city or county has been authorized to issue on-site sewage facility permits in Hardeman County, so TCEQ's Region 3 office in Abilene is the OSSF permitting authority for the entire county⁴⁵.

At a glance

Building permit: Not required in unincorporated Hardeman County; the county has no building department¹
Zoning: None; Texas gives Hardeman County no zoning authority²³
Septic permits: Issued directly by TCEQ's Region 3 office in Abilene, since no city or county authorized agent covers Hardeman County⁴⁵
RV, tiny home & manufactured home siting: Unrestricted by county zoning, since Hardeman County has none³
Owner-builder exemption: Available for an owner installing their own septic system on their own single-family home, under conditions⁶⁷
Driveway onto a state highway: A TxDOT Form 1058 permit is required, with 24 hours' notice to TxDOT before construction on the right of way⁸
Subdivision plats: Must be approved before recording; filed through the County Clerk's Office⁹¹⁰
Septic soils: Only 8.3% of the county's soils are free of severe limitations for a conventional drain field¹¹

Who to call

Septic permits

TCEQ Region 3 Office (Abilene)

On-site sewage facility (OSSF/septic) permits for Hardeman County; TCEQ's own authorized-agent lookup shows Hardeman County has no city or county authorized agent, so this TCEQ regional office is the direct permitting authority

325-698-9674

1977 Industrial Blvd, Abilene, TX 79602

Also useful

Hardeman County Clerk's Office

County records and subdivision plat filing at the county courthouse; the general office to start with for county business that doesn't have its own dedicated department, including road questions routed to the County Judge and Commissioners Court

(940) 663-2911

300 S Main St, Quanah, TX 79252

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

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

No, unincorporated Hardeman County does not require a county building permit for an ordinary home, because Texas counties have only limited authority over residential construction outside incorporated cities¹. Hardeman County has no building-permit department, consistent with that limited authority¹. Texas counties can adopt narrow building-code authority in specific circumstances — a fire code for commercial buildings, public buildings and multifamily housing of 4 or more units, but only in a county with a population over 250,000 or adjacent to one, which Hardeman County's roughly 3,500 residents fall far short of — and separate residential construction standards, but only where a county has affirmatively adopted them by resolution, which no source reviewed here shows Hardeman County has done¹²¹³. If you build inside one of the county's cities instead, Texas law adopts the International Residential Code as the municipal residential building code statewide, so expect a real permit process there¹⁴.

Who handles septic and other permits in Hardeman County, and how do you reach them?

There's no county building or zoning department to call in unincorporated Hardeman County, since the county runs neither program¹². Septic is different, and unusual for rural Texas: TCEQ's own authorized-agent lookup shows no city or county has been designated as Hardeman County's local OSSF authority, so TCEQ's own Region 3 office in Abilene issues the permits directly⁵⁴. For county records, subdivision plat filing, or if you're not sure who handles a particular question, the Hardeman County Clerk's Office at the courthouse in Quanah is the place to start¹⁰. If your driveway connects to a state highway, that permit comes from TxDOT, not the county⁸.

Does Hardeman County have zoning?

No — Hardeman County has no zoning ordinance, and Texas law grants county zoning authority only in a handful of narrowly defined situations that don't include Hardeman County²³. That means there's no countywide minimum lot size, setback, building-height limit, or lot-coverage rule, and zoning districts simply aren't published because none exist³. Accessory dwelling units, RVs, tiny homes, manufactured homes and temporary camping on private land also aren't restricted by county zoning, for the same reason³. Subdividing land is still regulated, though: a plat or replat generally can't be recorded until the county clerk confirms it has the approval state law requires, and it generally can't be used in a sale contract before that recording, with limited exceptions⁹. Cities in the county are a different story — Texas law adopts the International Residential Code as the statewide municipal building code, so a municipality's own permit and inspection process still applies inside its limits¹⁴.

How do septic permits work in Hardeman County?

Almost every on-site sewage facility (OSSF) in Texas needs a permit before it's constructed, installed, altered, extended or repaired, and Hardeman County is no exception¹⁵¹⁶. Unlike many Texas counties where a neighboring city or the county itself is the TCEQ-authorized agent, TCEQ's own authorized-agent lookup returns only TCEQ's Region 3 office in Abilene for Hardeman County, meaning the state handles permitting directly here⁵⁴. A 10-acre exemption can apply, but only if every condition is met: a licensed site evaluation, a single-family home on at least 10 acres, no nuisance or groundwater pollution, every part of the system at least 100 feet from the property line, on-site effluent disposal, and no other dwelling on the tract¹⁶. Emergency repairs are exempt from the permit itself but must still be reported in writing within 72 hours after the repair begins, and the permitting authority generally has 30 days to approve or deny a completed application¹⁶¹⁷. An owner can install their own OSSF on their own single-family home under Texas law, as long as the permitting authority allows owner installation, the owner also owns the property, no part of it is being developed for sale or lease, and anyone else helping is a licensed installer where required⁶⁷. Hardeman County's soils make careful planning worthwhile: only 8.3% are free of severe limitations for a conventional drain field, among the toughest septic profiles in rural Texas, so get a site evaluation before you commit to a purchase price¹¹.

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

Hardeman County's lack of zoning means there's no county rule banning or restricting RV living, tiny homes, manufactured homes, or temporary camping on private land — the county's legal research found these uses unrestricted specifically because the county has no zoning ordinance to regulate them³. That's an absence of restriction, not an official green light: no county inspector reviews the installation, and normal statewide requirements still apply regardless of zoning, most importantly the OSSF permit through TCEQ's Region 3 office for any wastewater system serving whatever you place on the land¹⁶⁵. No source reviewed for this guide addresses homeowners' association rules or deed restrictions, which can restrict what the county's lack of zoning does not².

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

Confirm your land is in unincorporated Hardeman County and not inside a city such as Quanah or Chillicothe, since cities apply Texas's statewide municipal residential building code and run their own permit process¹⁴.
Know that no county building permit is required for an ordinary single-family home in unincorporated Hardeman County, since the county has no building department¹.
Apply for your OSSF (septic) permit through TCEQ's Region 3 office in Abilene before you build, since no city or county authorized agent covers Hardeman County⁵¹⁶.
Get your soil site evaluation done early: only 8.3% of Hardeman County's soils are free of severe limitations for a conventional drain field¹¹.
If your driveway will connect to a state highway, submit TxDOT Form 1058 to the local TxDOT district office and give TxDOT 24 hours' notice before construction begins on the right of way⁸.
If you're dividing your land into multiple lots, file your plat with the County Clerk's Office and confirm it has the approval the county needs before you sign any sale contract¹⁰⁹.
Remember there's no comprehensive countywide zoning or building inspection to schedule for an ordinary home outside a city — construction quality is largely a matter between you and your builder³.

What to check before you buy land in Hardeman County

Start with septic, not zoning: only 8.3% of Hardeman County's soils are free of severe limitations for a conventional drain field, one of the toughest septic profiles among rural Texas counties, so get a site evaluation and a call to TCEQ's Region 3 office before you commit to a price¹¹⁵. Water is the county's biggest climate risk: it averages just 25.8 inches of precipitation a year and sees severe drought in 48.9% of years, nearly half — a well and water plan deserve real scrutiny here¹⁸¹⁹. The terrain is easy to build on — 93.3% of the county's land sits at 15% slope or less — but only 7.7% is wooded, so don't count on tree cover for privacy or wind protection²⁰²¹. Heat is a real factor too: mid-century projections put the county at about 63.4 days a year at or above 100°F, against a current average annual temperature of 63°F, worth weighing against a typical home insurance premium near $2,730 a year²²²³²⁴. The Gateway Groundwater Conservation District covers this area, so if you'll need a new well, confirm its current permit rules before you drill; specific district requirements weren't confirmed for this guide. Property taxes run low for rural Texas: the effective rate is about 1.2%, with a median bill near $905 a year against a typical home value around $68,200²⁵²⁶²⁷.

Watch-outs

Hardeman County has no zoning, but that means the county doesn't regulate RVs, tiny homes, setbacks or lot size — not that nothing regulates your land; deed restrictions, HOAs, and the statewide OSSF permit still apply³¹⁶.
Hardeman County's septic permits go through TCEQ's own Region 3 office in Abilene, not a city or the county itself — a different setup from many nearby counties, so don't assume the pattern from another county applies here⁵⁴.
No source reviewed for this guide establishes Hardeman County's building-code adoption status, certificate-of-occupancy practice, or a floodplain rule for unincorporated land — these remain open questions, so confirm directly with the county before you build¹.

Sources

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

How Hardeman County scores

Seclusion84100% ev.

Self-Sufficiency1796% ev.

Admin Boringness92100% ev.

Durability35100% ev.

Property Autonomy71100% ev.

Carry Cost8096% ev.

Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$68kTypical home

1.2%Property tax

$1,525Land / acre

25.8"Annual rain

48.9% of yrsSevere drought

63.4 / yr (+33.5)Mid-century 100°F days

27.7 daysMid-century dry spell

1.79" (+5.1%)Mid-century 1-day rain

1.34×Wildfire change factor

100%Forward climate coverage

$2,730Home insurance / yr

-3% / yrInsurance growth

0%Nonrenewal rate

single ZIP shrunk to state medianInsurance basis

2,670People within 30 min

254,349People within 2 hr

3,867Radius comparison (15 mi)

5People / sq mi

0%Federal land

93.3%Land at 15% slope or less

8.3%Septic soil without severe limits

36,721 acWorkable land screen

7.7%Wooded land

6.6 tonsBiomass / forest ac

63°FAvg temp

Answers from the rulebook for Hardeman County

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

Hardeman County rules

Zoning districts · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Minimum dwelling size · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Minimum lot size · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Setbacks · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Lot coverage · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Building height · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Living in an RV · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Camping on your land · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Tiny homes · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Manufactured homes · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Accessory dwellings · by state lawNo county rule
Unincorporated Hardeman County: no county rule sets this, because Texas law gives zoning power only to certain counties, and Hardeman County has no zoning ordinance. The county legal census found no county zoning ordinance, citing bexar.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- Chapter 231 does not grant a general statewide county zoning power; authority is provided through geographically or subject-matter limited subchapters.
- For Padre Island, the authority applies in Cameron or Willacy County outside a municipality and within two miles of a publicly owned park or recreational development, or within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.
“This subchapter applies to the areas of Padre Island located in Cameron or Willacy County and located: (1) outside a municipality but within two miles of a publicly owned park or recreational development; or (2) within two miles of a beach, wharf, or bathhouse used by at least 500 persons annually.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
Building permitNot required
Under Texas law counties have only limited authority over residential construction in unincorporated areas and rural counties like Hardeman do not issue county building permits; a building permit is generally required only within incorporated city limits.
Bexar County (official) FAQ explaining Texas county building-permit authority (statewide rule) ↗Scouted from the county site, not yet independently re-checked
County-wide zoningAbsent
Texas counties have no authority to adopt zoning ordinances for unincorporated areas, so Hardeman County has no county zoning.
Bexar County (official) FAQ on Texas county authority (statewide rule) ↗Scouted from the county site, not yet independently re-checked

Texas rules that apply here

Owner-builder exemptionAvailable (with conditions)
An owner installing an on-site sewage facility for a single-family dwelling in Texas.
- The permitting authority must allow owner installation under its local requirements.
- The OSSF must serve a single-family dwelling that the owner owns.
- The owner must also own the property.
- No part of the property may be developed for sale or lease.
- All permitting, construction, and maintenance requirements of the permitting authority must be met.
- If anyone else assists with installation, that person must be a licensed installer of the correct level, except a licensed electrician installing electrical components and a person delivering and setting a treatment or pump tank.
“This depends on whether the permitting authority allows this in their local requirements. [...] all permitting, construction, and maintenance requirements of the permitting authority are met.”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
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:”
Industrialized Housing and Buildings – Adoption of New Code Editions ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Adopted (with conditions) — Residential building-code requirements in municipalities in Texas, including incorporated municipalities located in Hardeman County.
  “To protect the public health, safety, and welfare, the International Residential Code, as it existed on May 1, 2012, is adopted as a municipal residential building code in this state. The International Residential Code applies to all construction, alteration, remodeling, enlargement, and repair of residential structures in a municipality.”
  Local Government Code Chapter 214 — Municipal Regulation of Housing and Other Structures ↗Re-checked Sep 11, 2026
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.”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 12, 2026
Septic permitRequired
Construction, installation, alteration, extension, or repair of an OSSF in Texas
- A permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.
- A 10-acre exemption may apply only if all listed conditions are met: site evaluation by a TCEQ-licensed site evaluator or professional engineer; single-family dwelling on at least 10 acres; no nuisance or groundwater pollution; all OSSF parts at least 100 feet from the property line; effluent disposed of on the property; and the single-family dwelling is the only dwelling on the tract.
- Emergency repairs listed by TCEQ do not require a permit but must be reported in writing to the permitting authority within 72 hours after repairs begin.
- Grandfathered systems may also be exempt if the stated conditions are met.
minimum tract size for 10-acre exemption: >= 10 acres (single-family dwelling and all other TCEQ conditions must be met) · minimum OSSF distance from property line for 10-acre exemption: >= 100 feet (all parts of the OSSF) · emergency repair reporting deadline: <= 72 hours (after repairs have begun; written report to permitting authority)
“A permit is required to construct, install, alter, extend, or repair an OSSF. [...] An OSSF may be exempt from permitting if it complies with all other requirements, including planning, construction, and installation standards of 30 TAC 285 AND meets the “10 acre rule”:”
Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Required — Construction, installation, alteration, extension, or repair of an on-site sewage facility, including a septic system or holding tank, in Texas, including Hardeman County.
  “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.”
  Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
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.”
Basics for Septic Systems ↗Re-checked Sep 12, 2026
Subdividing landRegulated (with conditions)
Subdivision plats and replats of real property located in Hardeman County, subject to the Texas approval and recording rules and any applicable county or municipal authority.
- The county clerk determines whether approval by a county authority, municipal authority, or both is required.
- A plat or replat may not be recorded unless approved as provided by law and accompanied by documents required by Local Government Code Sections 212.0105 or 232.023, if applicable.
- A person generally may not use a subdivision description in a deed, contract for deed, contract of sale, or other executory contract delivered to a purchaser unless the plat or replat is approved and recorded.
- The contract-use restriction has an exception when the subdivision is not in a county to which Local Government Code Subchapter B or G, Chapter 232 applies, the conveyance is expressly contingent on approval and recording of the final plat, and the purchaser is not given use or occupancy before recording.
- A separate tax-certificate requirement applies, subject to statutory exceptions for certain inherited divided interests and property acquired for public use through eminent domain or voluntary sale.
- The section does not apply to a partition by a court.
plat approval before recording: true (Subject to statutory exceptions and applicable county or municipal approval rules.)
“The county clerk or a deputy of the clerk with whom a plat or replat of a subdivision of real property is filed for recording shall determine whether the plat or replat is required by law to be approved by a county or municipal authority or both. The clerk or deputy may not record a plat or replat unless it is approved as provided by law by the appropriate authority and unless the plat or replat has attached to it the documents required by Subsection (e) or by Section 212.0105 or 232.023, Local Government Code, if applicable.”
Texas Property Code, Section 12.002. Subdivision Plat; Penalty ↗Re-checked Sep 11, 2026
Driveway accessRequired
New or modified access driveways connecting property to a Texas state highway right of way.
- A local public agency may receive access driveway permitting authority for state highways, but TxDOT approval remains required for drainage impacts on the state highway system before local approval.
- No access driveway is permitted within a flared or widened right-of-way section at an intersection of a state highway with another highway, road, or street.
- All entrances and exits, including radii, must be confined within the permittee's property frontage.
- One-way 45-to-90-degree driveways are permitted for connections to one-way frontage roads or lane-divided highways; otherwise the driveway angle must be 75 to 90 degrees.
- ADAAG and Texas Accessibility Standards apply.
private residential driveway maximum width: <= 24 feet (Except as increased by permissible radii.) · driveway-to-pavement radius: >= 15 feet
“A driveway must be constructed in accordance with a fully executed driveway permit”
Section 4: Driveway Permits, Design, and Materials ↗Re-checked Sep 12, 2026
Permit processPublished (with conditions)
Constructing a new driveway or revising an existing driveway on the right of way of a Texas state highway.
- The applicant should contact the local District TxDOT office.
- The applicant must submit Form 1058, Permit to Construct Access Driveway Facilities on Highway Right of Way.
- The application must be for the bona fide purpose of securing or changing access to the owner's property, not parking or servicing vehicles on state highway rights of way.
- No construction may begin on the right of way until a fully executed driveway permit is received and the applicant gives TxDOT 24-hour notification.
- The driveway must comply with the executed permit and applicable regulations; TxDOT inspection must find construction satisfactory.
- Where a local public agency has permitting authority, drainage impacts on the state highway system still require TxDOT approval before local approval.
- Driveway geometrics, utilities, environmental requirements, wetlands considerations, ADAAG, TAS, and other applicable state and federal laws must be considered.
required form: Form 1058, Permit to Construct Access Driveway Facilities on Highway Right of Way · advance notification: 24 hours (Notification to TxDOT is required before construction on the right of way.) · private residential driveway maximum width: <= 24 feet (Except as increased by permissible radii.) · minimum driveway radius to highway pavement: >= 15 feet
“The applicant shall complete and submit to TxDOT a Form 1058”
Section 4: Driveway Permits, Design, and Materials ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Partial — On-site sewage facility permits in Hardeman County and elsewhere in Texas.
  “Applications and planning materials must be submitted to the permitting authority. To find your permitting authority, search by the county the OSSF is to be located. The TCEQ regional office will be the permitting authority in locations where a local jurisdiction has not been authorized.”
  Getting a Permit for an OSSF - Such as a Septic System ↗Re-checked Sep 11, 2026
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.”
Local Government Code Chapter 231, County Zoning Authority ↗Re-checked Sep 21, 2026
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.”
Local Government Code Chapter 233, County Regulation of Housing and Other Structures ↗Re-checked Sep 21, 2026

Still unanswered

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

Certificate of occupancy — Certificates of occupancy or equivalent occupancy approvals for buildings in Hardeman County, Texas.
Local zoning — Aggregate local-zoning status across Hardeman County, including incorporated municipalities and unincorporated areas; the county aggregate does not imply that Hardeman County administers municipal ordinances.
Off-grid sanitation — Use of off-grid sanitation systems in Hardeman County.
Well permit — Private water-well permitting or registration in Hardeman County.
Mandatory utility hookup — Water or sewer connection requirements for development in Hardeman County.

4 more unanswered

Agricultural exemption
Building in a floodplain
Short-term rentals
Permit fees

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 Hardeman County, Texas

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

Hardeman County scores 49/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property and deep seclusion — about 2,670 people within a 30-minute drive. Watch-outs: workable self-sufficiency basics (25.8″/yr rainfall) and elevated mid-century heat, water, rain, or wildfire exposure.

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

Hardeman County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by TCEQ On-Site Sewage Facilities program (TCEQ regional office, unless a local authorized agent is designated for Hardeman County). 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 Hardeman County?

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

How much does land cost in Hardeman County, Texas?

Land in Hardeman County runs about $1,525 per acre, based on the latest county data.

What is the water situation in Hardeman County?

Hardeman County gets about 25.8" of rain a year, with severe drought in roughly 48.9% of years.

How remote is Hardeman County?

A representative private-land location has about 2,670 people within a 30-minute drive and 254,349 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and septic rules in Hardeman County, Texas

At a glance

Who to call

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

Who handles septic and other permits in Hardeman County, and how do you reach them?

Does Hardeman County have zoning?

How do septic permits work in Hardeman County?

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

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

What to check before you buy land in Hardeman County

Watch-outs

Sources

Hardeman County in Texas

How Hardeman County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Hardeman County

Hardeman County rules

Texas rules that apply here

Still unanswered

Living off-grid in Hardeman County, Texas

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

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

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

How much does land cost in Hardeman County, Texas?

What is the water situation in Hardeman County?

How remote is Hardeman County?

How Hardeman compares in Texas