Inside the City Limits (full purpose annexation) – Zoning, Subdivision, Site plan, Building, Trade, and Concrete permits are required.
If your property is totally within the City of Austin and you are erecting, constructing, enlarging, altering, repairing, improving, removing, converting, moving, demolishing any building or structure, you are required to obtain a City of Austin Building Permit, a site plan (development permit), or a site plan exemption. Depending on the extent of your work, you may be required to obtain one or more of the following permits
- Mechanical (heating/air conditioning)
- After Hours Concrete Pouring (Applicable in Central Business District Only)
Inside the City Limits (limited purpose annexation) – The same rules above apply. In addition, Travis County requires development permits, building permits, and driveway permits.
Extra-territorial Jurisdiction (not limited purpose annexation) – The extra-territorial jurisdiction (ETJ) is that area extending five miles outside the City of Austin corporate limits. All development in the ETJ is required to obtain a site plan (development permit) approvals or site plan exemptions from the City. In addition, plumbing and/or electrical permits may be required if the project is served by City utilities (ETJ fees will be assessed in addition to the permit fees). Development and driveway permits are required by Travis County and Hays County.
All areas inside the city limits and/or ETJ (other commonly required approvals):
- Austin/Travis County Health Department permits, if the project needs a septic system or if it is a sanitary landfill or salvage yard. LCRA has jurisdiction for permits for septic tanks adjacent to Lake Travis.
- US Fish and Wildlife Service permits for endangered species habitats.
- Texas Water Commission permit for projects over the Edwards Aquifer.
- Texas Parks and Wildlife Department, Corps of Engineers approval for drainage modifications.
- Projects involving single-family boat docks, earthwork, site clearing, utilities, and street and drainage improvements require a site plan (development permit) or site plan exemption. Boat docks also require building and electrical (if lighted) permits along Lake Austin.