Before You Build in Austin, TX: Permit & Rule Checklist (2026)

Austin requires a building permit for any retaining wall over 4 feet in height or any wall supporting a surcharge (driveway, structure, slope), per City Code Chapter 25-12. Engineered drawings are required for walls over 4 feet, and watershed rules impose additional limits near creeks and Critical Environmental Features.

Austin enforces International Swimming Pool and Spa Code barrier standards under Chapter 25-12: 4-foot minimum fence, self-closing self-latching gates, door alarms on homes acting as a pool barrier, and 20-inch gap limits. Barriers must be in place before any water is added.

Austin Land Development Code Chapter 25-2 Subchapter F caps residential fences at 6 feet in side and rear yards and 4 feet in front yards without a permit. Corner-lot visibility triangles drop the limit to 2.5 feet, and fences exceeding code limits require a Board of Adjustment variance.

Austin adopts the 2021 International Swimming Pool & Spa Code requiring 48-inch barriers, self-closing self-latching outward gates, door alarms on dwellings acting as barriers, and strict picket spacing. Texas Health & Safety Code Chapter 757 adds owner liability for pool access.

Austin requires permits for above-ground pools over 24 inches deep or 5,000 gallons. Structural, electrical, and barrier inspections apply, and impervious cover counts against zoning limits. Smaller inflatable pools under 24 inches deep are exempt.

Austin requires VGBA-compliant anti-entrapment drain covers, barrier compliance, and for public/semi-public pools, lifeguard or signage requirements under Chapter 10-3. Residential pool drownings are the leading accidental death cause for Texas children 1–4.

Austin's HOME Initiative (Ord. 20231207-001, effective Feb 5, 2024) allows up to 3 housing units, including ADUs and tiny homes, on lots zoned SF-1, SF-2, and SF-3.

Austin requires a Garage Conversion / Carport-Porch Enclosure permit plus a Residential Interior Remodel application. Citywide off-street parking minimums were eliminated in 2023, though some addresses still trigger replacement parking.

Austin is among the most tiny-home-friendly cities in Texas, allowing ADUs on most SF lots down to 5,750 sf and permitting DADUs (Detached ADUs) with reduced setbacks under HOME Initiative amendments. Texas Property Code and local SMART Housing incentives promote affordable tiny-home development.

One-story detached residential sheds 200 sq ft or smaller and 15 ft or shorter in height are exempt from a building permit, provided they have no plumbing, are not a dwelling, and are not in a flood hazard area.

Austin regulates carports through the Land Development Code (LDC) Title 25. To qualify as a carport (rather than a garage counted toward floor area), the structure must have at least two open sides that are clear and unobstructed for at least 80% of the area below the top wall plate. A building permit is required, and the structure must comply with setbacks under LDC § 25-2-492 and the openness-of-yard rules in LDC § 25-2-513.

Open burning within Austin city limits is prohibited except for small recreational fires (3 feet diameter or less, 2 feet tall or less) for cooking or warmth. Burning in all city parks, greenbelts, and preserves is prohibited under Ordinance No. 20111102-025.

Fire pits and backyard fires are allowed in Austin if used for cooking or warmth and kept to 3 feet or less in diameter and 2 feet or less in height. Permanent outdoor fireplaces and enclosed barbecue pits are permitted. Burning trash is prohibited.