The City of Austin's Building Technical Codes (Chapter 25-12) contain regulations for Building, Electric, Fire, Property Maintenance, Mechanical, Plumbing, Residential, and Solar Energy.
Local Amendments
The Austin City Council adopted the 2024 Local Amendments on April 10, 2025. Amended codes will become effective July 10, 2025. Learn more about the Approved 2024 Technical Code Changes.
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 |
Current |
Effective July 10, 2025 |
|---|---|---|
| Flood Hazard Areas - (Chapter 25-12, Article 3) | 2021 | No change |
| International Building Code (IBC) | 2021 | 2024 |
| International Energy Conservation Code (IECC) | 2021 | 2024 |
| International Existing Building Code (IEBC) | 2021 | 2024 |
| International Fire Code (IFC) | 2021 | 2024 |
| International Property Maintenance Code (IPMC) | 2021 | 2024 |
| International Residential Code (IRC) | 2021 | 2024 |
| International Swimming Pool and Spa Code (ISPSC) | 2018 | 2024 |
| International Wildland-Urban Interface Code (IWUIC) | 2015 | 2024 |
| National Electrical Code (NEC) | 2023 | No change |
| Uniform Mechanical Code (UMC) | 2021 | 2024 |
| Uniform Plumbing Code (UPC) | 2021 | 2024 |
Historic Code Adoption Dates (PDF)
For more information about the adoption of 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
- Accessible Pathway and Accessible Parking (CI2011-0002) (PDF)
- Permitting of Mixed Use Multiple Occupancy Buildings (CI2012-0001) (PDF)
- Assisted Use Toilets Enforcement (CI2014-0002) (PDF)
- Applicability of Worker Protection Standards (CI2019-0001) (PDF)
Residential Code
- Threshold No-Step Entrance (CI2013-0002) (PDF)
- Mechanical and Pool Equipment in Required Yards (CI2014-0006) (PDF)
- 25% Openings (CI2018-0904) (PDF)
Plumbing Code
- Installation of Composting Toilets (CI2012-0003) (PDF)
- Ansul Valve Location (CI2014-0004) (PDF)
- Trenching, Excavation, Bedding and Backfill of Piping (CI2015-0003) (PDF)
Mechanical Code
- Registers for Balancing Dampers (CI2013-0001 revised) (PDF)
- Fan Powered Terminal Units (CI2014-0003) (PDF)
- Automatic Shut Off for Air Moving Equipment in Existing Buildings (CI2014-0005) (PDF)
Other Code-Related Resources
Energy Code
- Contractors for Energy Code Required Testing (PDF) - List of contractors that are allowed to perform energy code testing.
- Commissioning Summary Template (PDF) - Provided to Commercial Plan Review
- Commissioning Acceptance Form (PDF) - Provided to Inspections at mechanical rough.
- Commercial Solar Ready Guidelines (PDF)
Residential Code
- Circulation Sizing Calculations - APSP 7 & 15 (PDF)
- Third-Party Framing Checklist (PDF)
- Third-Party Residential Pool and Spa Inspection Checklist (PDF)
Commercial Facilities
- Gender-Neutral Signage for Single-User Restrooms - Chapter 4-16, Article 1 of the City Code
Residential and Commercial
- Cooling Towers (PDF) - Information Bulletin No. 2018-0002, Mechanical Code 1126.0