Austin Home Addition Permits 2026

Austin home addition permit fees, plan review, and required inspections for 2026.

Austin Home Addition permit basics

  • Building department: City of Austin Development Services Department
  • Department URL: https://www.austintexas.gov/department/development-services
  • Permit fee typical: $400 - $3,500 permit fee
  • Plan review + approval: 10-30 business days (slowest in Texas due to growth)
  • Inspections required: 6-12 inspections (footing, framing, electrical, plumbing, mechanical, insulation, drywall, final)

Austin Home Addition common issues

Setback compliance, FAR (floor-area ratio), structural review required, sewer/water capacity may need upgrade.

Austin-specific permitting context

Austin permitting backlog is real - plan ahead. Energy code (IECC 2021) is strict. Heritage tree ordinance affects site work. STR (short-term rental) rules add complexity for vacation properties.

Climate factors: Hot subtropical; hill country topography drives drainage and foundation challenges; rapid growth area

Texas licensing for Home Addition contractors

Texas Department of Licensing and Regulation (TDLR) - for HVAC, electrical, plumbing only; no statewide GC license - no statewide license, but Austin likely requires local registration.

Mechanics lien deadline in Texas: 15th day of 4th month after last work (residential); 15th day of 3rd month (commercial). Preliminary notice: Notice to owner required by 15th day of 2nd month after first work for residential.

Austin Home Addition sales tax

Texas sales tax: 6.25% + local (~8.2% combined avg, capped at 8.25%). NEW CONSTRUCTION labor exempt. REMODELING and REPAIR labor on real property TAXABLE. Lump-sum vs. separated contracts treated differently.

Verify with the Texas Comptroller of Public Accounts.

Track Austin permits with KaamCam

KaamCam jobs have built-in permit tracking - permit number, date issued, inspection schedule, and inspector contact. Auto-reminders before each inspection date. $12 per seat per month. Start a free 14-day trial.

Related Austin resources