Austin, TX Building Safety: Building Permits (2026)
Key Facts
- Exempt Deck
- ≤200 sq ft, ≤30" high, detached
- Patios at Grade
- No permit needed
- Covered Patios
- Permit required
- Permit Cost
- $100-$300 typical
Summary
Austin exempts decks up to 200 sq ft, no more than 30 inches above grade, not attached to the dwelling, and not in a flood zone. Larger or higher decks require a building permit. Uncovered patios at grade do not need permits.
Residential - Building - A deck that is no more than 200 square feet (18.58 m2 ) in area, is no more than 30 inches (762 mm) above grade at any point, is not attached to a dwelling or townhouse, does not provide egress from the dwelling, and is not located within a flood hazard area. [...] A non-structural exterior deck repair that is limited to the existing deck boards and does not include guardrails or handrails. [...] A sidewalk, driveway, or concrete flatwork that is not located in the public right-of-way. [...] Exemption from the permit requirements of this code does not authorize work to be done in violation of other provisions of the City Code or City requirements.
Full Breakdown
Austin's building code exempts small decks that meet all of the following: floor area not greater than 200 square feet, no more than 30 inches above grade at any point, not attached to the dwelling or townhouse, does not provide egress from the dwelling, and is not in a flood hazard area. Decks exceeding any of these criteria require a building permit. Uncovered concrete or paver patios at grade level generally do not require permits. Covered patios (with a roof structure) require a building permit. Deck plans must show structural details including footings, beam spans, joist sizes, and guardrail specifications. Guardrails are required on decks more than 30 inches above grade (36 inches high per IRC). Permit costs for small residential projects like decks typically range from $100 to $300. Plan review fees may add $1,000+ for larger projects.
Violations & Fines
Building without a permit: stop-work order. May need retroactive permitting or removal of non-compliant work.
Frequently Asked Questions
Do I need a permit for a small deck in Austin?
How much does a deck permit cost in Austin?
Sources & Official References
Other rules in Austin
Texas rules heatmap·Compare Austin to another location·View the Texas building safety overview
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Building Permits in Nearby Cities
How other cities in Travis County handle building permits.