What Can You Build Without a Permit in Texas? (2026)
The 30-second answer for Texas
In Texas, the projects you can usually build without a building permit are a small detached shed, a short freestanding deck, a fence under the height cap, a low retaining wall, and cosmetic interior work. The exact limits Texas enforces are in the table below — and your city can be stricter than the state. The catch every homeowner needs to hear: even when no permit is required, the building code, zoning setbacks, and any HOA rules still apply. Permit-exempt means the paperwork is waived, not the rules.
How Texas sets the rules
Texas is a home-rule state with NO statewide residential building code and no statewide permit authority; permit-exemption rules are set city by city, so the answer changes at every municipal boundary. Major cities have adopted the 2021 International Residential Code with local amendments (Houston: 2021 IRC + Houston Amendments; San Antonio: 2021 IBC/IRC family effective February 1, 2023; Dallas enforces its own Construction Codes). On unincorporated county land there is generally NO building permit at all, because Texas counties lack general authority to require or inspect ordinary residential construction (septic/OSSF, floodplain, and subdivision-platting rules still apply).
Permit-exempt limits in Texas
These are the thresholds we verified for Texas. Treat each one as the most you can usually do without pulling a permit — a stricter city amendment always wins.
| Project | Texas permit-exempt limit |
|---|---|
| Detached shed / accessory building | VERIFIED (Houston): a one-story detached accessory structure is exempt only if floor area does not exceed 120 sq ft and has no utilities — TIGHTER than the 200 sq ft IRC baseline. VERIFIED (Dallas): a utility building under 200 sq ft, without utilities, on single-family/duplex premises is exempt (Dallas City Code Chapter 52). San Antonio adopts the 2021 IRC (baseline 200 sq ft), but a published square-foot exemption figure could not be confirmed at a San Antonio primary source — verify locally. |
| Deck | In Houston the IRC 4-part test applies verbatim and all four conditions must hold: not exceeding 200 sq ft, not more than 30 inches above grade at any point, not attached to the dwelling, and not serving the exit door required by Section R311.4; a deck that is attached to the house or serves the required exit needs a permit at ANY size. San Antonio publishes no size-based deck exemption — decks are handled as accessory structures/additions on the residential permit application, and covered patios/decks always require a permit. |
| Fence | VERIFIED (Houston): fences NOT over 8 ft high are exempt, but only if they are not masonry or concrete and not electrically energized — a masonry, concrete, or energized fence needs a permit at any height. San Antonio does NOT exempt fences: a Residential Fence Application/permit is required for essentially all residential fences (though no city inspection is performed), and UDC 35-514 caps most rear/side-yard fences at 6 ft, with any fence over 6 ft requiring abutting-owner notification. |
| Retaining wall | VERIFIED (Houston): retaining walls NOT over 4 ft in height measured from the bottom of the footing to the top of the wall are exempt, unless supporting a surcharge — matches the IRC baseline. San Antonio requires a SEPARATE permit for retaining walls with no published height exemption ('separate permits are required for retaining walls and fences'). |
| Patio (on grade) | An uncovered, on-grade concrete patio slab generally does not need a building permit in Houston (it falls under platforms/decks not more than 30 inches above grade), but new impervious cover triggers storm-water/drainage review on larger lots (15,000 sq ft or more, or over 65% impervious). A COVERED patio or porch requires a building permit in both Houston and San Antonio. |
Baseline: 2021 International Residential Code, Section R105.2. See the national project-by-project guide for how each threshold works.
Can you do the work yourself in Texas?
Yes in both major cities. Houston: the building permit may be purchased by the owner, agent, or contractor, and general contractors are NOT required to be licensed; applicants sign an unsworn Declaration (deed-restriction attestation validated against HCAD records). San Antonio: a homeowner may apply but must initial an affidavit attesting they will own, occupy, or rent the residence for twelve months after final inspection (City Code 10-115(a)(1)); a property owner may only self-build ONE single-family home or ADU — duplexes and multi-unit projects require a licensed professional.
What's different about Texas
Houston has no zoning, but 'no permit' still isn't 'no rules'
Even permit-exempt projects must comply with Chapter 42 setbacks and platting, recorded deed restrictions, and floodplain rules; a masonry, concrete, or electrified fence always needs a permit regardless of height.
San Antonio permits fences AND retaining walls that the IRC would exempt
The IRC baseline exempts fences up to 7 ft and retaining walls up to 4 ft, but San Antonio requires a separate permit for both, making it stricter than the model code.
Unincorporated county land often needs no building permit at all
Texas counties generally cannot require or inspect ordinary residential construction outside city limits, so there is usually no building permit — but on-site septic (OSSF), floodplain permits, and subdivision platting still apply, and new homes are still legally required to meet the IRC.
"Permit-exempt" does not mean rule-free
I spent 25 years as a firefighter before I built PermitDeck, so let me be blunt about the part that gets people hurt. "No permit" never means "no rules." When a project is exempt in Texas, three things are still true — and now you are the one responsible for them, because no inspector is coming to check:
- Building code still applies. An exempt deck in Texas still has to meet the structural rules of IRC R507 — real footings, a proper ledger, and guards. A shed still has to carry your local snow and wind load. The code does not care whether a permit was pulled.
- Zoning and setbacks still apply. Exempt does not mean you can put it anywhere. Setbacks from property lines, easements, lot-coverage caps, and corner-lot sight lines all still bind you — and a neighbor complaint can force you to move it.
- HOA rules are separate. Your HOA architectural review is a private contract, not a government permit. You can be fully permit-exempt with your city and still be forced by your HOA to tear something out.
The big Texas cities
Permits are pulled locally, so your city's building department has the final word. Here are the two largest, with a link straight to their office.
Houston
Detached accessory structure exempt only if 120 sq ft or less (tighter than the 200 sq ft IRC baseline); fences exempt up to 8 ft if not masonry/concrete/energized.
Houston building departmentSan Antonio
Separate permits are required for fences and retaining walls (both IRC-exempt), and the homeowner-builder must sign a 12-month owner-occupancy affidavit per City Code 10-115(a)(1).
San Antonio building departmentTurns out you do need a permit? We'll match you with pros who pull it
If your project crosses one of these Texasthresholds, the cleanest path is to hire a licensed pro who pulls the permit in their own name and stands behind the inspection. Tell us the project once and we'll send it to up to three verified local pros. It's free, it's capped at three, and we never sell your information — the opposite of the lead-farm sites.
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What happens if you needed a permit and skipped it
Guessing wrong on the exemption is not a small risk. The common outcomes are a stop-work order, a fine (often double the normal permit fee), and being ordered to open finished work back up for inspection or tear it out. The expensive part usually lands later: unpermitted work routinely kills a home saleat the buyer's inspection, and an insurance claim can be denied if the damage traces back to unpermitted construction. Most jurisdictions do allow a retroactive (after-the-fact) permit — it costs more, but it clears the record.
Full detail: what happens if you build without a permit and how to get a building permit.
Texas permit-exemption FAQs
Do I need a permit to build a shed in Texas?
It depends on your city, since Texas has no statewide code. In Houston a one-story detached shed is exempt only if it is 120 sq ft or smaller with no utilities. Dallas exempts utility buildings under 200 sq ft without utilities. On unincorporated county land there is usually no building permit at all. Zoning setbacks still apply everywhere.
How tall a fence can I build in Texas without a permit?
This is set by your city. Houston exempts fences up to 8 feet high if they are not masonry, concrete, or electrified. San Antonio is stricter: it requires a permit for essentially every residential fence, and its Unified Development Code caps most rear and side-yard fences at 6 feet, with any fence over 6 feet needing neighbor notification.
Is a permit required to build on land outside city limits in Texas?
Usually not a building permit. Texas counties generally lack authority to require or inspect ordinary residential construction in unincorporated areas, so no city-style building permit exists. However, you still need an on-site sewage (septic/OSSF) permit, a floodplain permit if applicable, and subdivision platting — and the home must still legally comply with the IRC.
Can I pull my own building permit in Texas as the homeowner?
Yes, in both major cities. In Houston the owner, agent, or contractor may buy the building permit, and general contractors need not be licensed. In San Antonio a homeowner may apply but must sign an affidavit agreeing to own or occupy the home for twelve months after final inspection, and may self-build only one single-family home or ADU.
Sources we verified against
- City of Houston — Residential Plan Review / Building Permit Exemptions
- City of Houston — Residential Permitting 101 (exemptions list)
- City of San Antonio DSD — Residential Building Permit Application (owner affidavit, fence/retaining-wall note)
- City of San Antonio DSD — Information Bulletin 223, Residential and Commercial Fences (UDC 35-514)
- City of Dallas — Chapter 52 Administrative Procedures for the Construction Codes
Every threshold on this page is anchored to Texas's building code or the sources listed above. Where a number varies by city and we could not verify it, we say "verify locally" rather than guess — a permit page you cannot trust is worse than no page at all.
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