Check the reviewed permit path.

Austin

Mechanical trade permit path when scope includes duct or HVAC mechanical work

City of Austin's stand-alone permit page lists mechanical permit work unrelated to a building permit as a stand-alone trade permit scope for single-family properties. For insulation and air-sealing projects, use this as a permit path check when the project includes duct or HVAC mechanical work; confirm insulation-only scopes with Austin Development Services before work proceeds.