Austin, Texas Building Codes

Updated : 04/22/2024

Overview

Austin, Texas, adopted the 2021 International Residential Code (IRC), including Appendices AC, AE, AH, AJ, AR, AS, AU, and AW, with amendments. Austin, TX, Muni. Code § 25-12-241 (adoption) and § 25-12-243 (amendments). Austin, Texas, adopted the 2021 International Building Code (IBC). Austin, TX, Muni. Code § 25-12-1 (adoption) and § 25-12-3 (amendments). Austin, Texas, adopted the 2021 International Existing Building Code (IEBC). Austin, TX, Muni. Code § 25-12-231 (adoption) and § 25-12-233 (amendments).

Helpful resources for Austin, Texas include the following.

Residential Building Code

Texas adopted a model state residential code but it is not in force unless adopted locally.See PLRB, Texas Building Codes for more information on state level codes.

Austin adopted the 2021 IRC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the model code here.

You can find information about amendments to the model code here.

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2021 IRC(Austin, TX § 25-12-241 - INTERNATIONAL RESIDENTIAL CODE.)

...(A) The International Residential Code for One- and Two-Family Dwellings, 2021 Edition, published by the International Code Council ("2021 International Residential Code") and Appendices AC, AE, AH, AJ, AR, AS, AU, and AW are adopted and incorporated by reference into this section with the deletions...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Austin ? No
Citation: Austin, TX, Muni. Code § 25-12-243
Comments:

The adoption of the residential code included an amendment stating that ice barrier underlayment is not required at the eaves.

Ground Snow Load Wind Speed (mph) Topographic Effects Special Wind Region Wind-borne Debris Zone Seismic Design Category Damage from Weathering
5 115 NO NO NO A Negligible

 

Damage from Frost Line Depth Damage from Termite Winter Design Temp Ice Barrier Underlayment Required Flood Hazards Air Freezing Index Mean Annual Temp
12 in (305mm) YES 28 NO Construction Commenced After 9/2/1981 30 68.1

 

Comments

Austin, Texas, adopted the 2021 International Residential Code (IRC), including Appendices AC, AE, AH, AJ, AR, AS, AU, and AW, with amendments. Austin, TX, Muni. Code § 25-12-241 (adoption) and § 25-12-243 (amendments). 

Existing Buildings

Existing buildings, meaning buildings that were built in accordance to code at the time of construction, typically merit extra consideration in a current updated code.

Austin, Texas, adopted Appendix AJ of the 2021 IRC.

Austin, Texas, adopted the 2021 International Existing Building Code (IEBC). Austin, TX, Muni. Code § 25-12-231 (adoption) and § 25-12-233 (amendments).

Commercial Building Code

Austin adopted the 2021 IBC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the code here.You can find information about amendments to the model code here.

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See Muni. Code(Austin, TX Municipal Code)

...Adoption not found...

Comments

Austin, Texas, adopted the 2021 International Building Code (IBC). Austin, TX, Muni. Code § 25-12-1 (adoption) and § 25-12-3 (amendments). 

Existing Buildings

Austin, Texas, adopted the 2021 International Existing Building Code (IEBC). Austin, TX, Muni. Code § 25-12-231 (adoption) and § 25-12-233 (amendments). 

Other Building Codes

Austin, Texas, adopted the 2021 International Energy Conservation Code (IECC). Austin, TX, Muni. Code § 25-12-261 (adoption) and § 25-12-263 (amendments). 

Austin, Texas, adopted the 2021 International Fire Code (IFC). Austin, TX, Muni. Code § 25-12-171 (adoption) and § 25-12-173 (amendments). 

Austin, Texas, adopted the 2021 International Property Maintenance Code (IPMC). Austin, TX, Muni. Code § 25-12-211 (adoption) and § 25-12-213 (amendments). 

Austin, Texas, adopted the 2018 International Swimming Pool and Spa Code (ISPSC). Austin, TX, Muni. Code § 25-12-301 (adoption) and § 25-12-303 (amendments). 

Austin, Texas, adopted the 2015 International Wildland-Urban Interface Code (IWUIC), including Appendices A, B, C, and D, with amendments. Austin, TX, Muni. Code § 25-12-181 (adoption) and § 25-12-183 (amendments).

Austin, Texas, adopted the 2020 National Electrical Code (NEC), including Annex H. Austin, TX, Muni. Code § 25-12-111 (adoption), § 25-12-113, and § 25-12-114 (amendments). 

Austin, Texas, adopted the 2021 Uniform Mechanical Code (UMC). Austin, TX, Muni. Code § 25-12-131 (adoption) and § 25-12-133 (amendments). 

Austin, Texas, adopted the 2021 Uniform Plumbing Code (UPC), including Appendices A, B, C, D, E, G, I, J, K, and N, with amendments. Austin, TX, Muni. Code § 25-12-151 (adoption) and § 25-12-153 (amendments).