The City of Austin's Building Technical Codes (Chapter 25-12) contains regulations for Building, Electric, Fire, Property Maintenance, Mechanical, Plumbing, Residential, and Solar Energy.

Local Amendments

2021 Local Amendments became effective September 1, 2021. Learn more about the Approved 2021 Technical Code Changes.

Click below to view the local amendments for each Code.

Local Amendment


Flood Hazard Areas - (Chapter 25-12, Article 3) 2021
International Building Code (IBC) 2021
International Energy Conservation Code (IECC) 2021
International Existing Building Code (IEBC) 2021
International Fire Code (IFC)    2021
International Property Maintenance Code (IPMC)   2021
International Residential Code (IRC) 2021
International Swimming Pool and Spa Code (ISPSC) 2018
International Wildland-Urban Interface Code (IWUIC) 2015
National Electrical Code (NEC) 2023
Uniform Mechanical Code (UMC) 2021
Uniform Plumbing Code (UPC) 2021


Historic Code Adoption Dates (PDF) download document link

For more information about proposed 2024 Technical Building Code amendments, visit our Technical Codes engagement page.


Technical Code Interpretations

The Code Interpretation Library provides useful information on how the City interprets and applies certain regulations in the Land Development Code (Title 25 of the City Code), including site development and subdivision regulations, as well as technical (construction) codes.

Building Code

Residential Code

Plumbing Code

Mechanical Code

Other Code Related Resources

Energy Code

Residential Code

Commercial Facilities

Residential and Commercial

  • Cooling Towers (PDF) download document link - Information Bulletin No. 2018-0002, Mechanical Code 1126.0