Updated : 04/22/2024
Overview
Cook County, Illinois, adopted the 2021 International Residential Code (IRC), including appendices AA, AB, AE, AF, AJ, AK, AM, AO, with amendments. Cook County, IL, Muni. Code § 102-120 (adoption and amendments). Please note that Cook County, Illinois adopted specific provisions of the 2021 IRC and appendix AE.
Cook County, Illinois, adopted the 2021 International Building Code (IBC), including appendices C-I, J, with amendments. Cook County, IL Muni. Code § 102-110 (adoption and amendments). Please note that Cook County, Illinois adopted specific provisions of the 2021 IBC and appendix J.
Cook County, Illinois, adopted the 2021 International Existing Building Code (IEBC), including appendices B, C, with amendments. Cook County, IL, Muni. Code § 102-127 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2021 IEBC.
Helpful resources for Cook County, Illinois include the following.
Residential Building Code
Illinois has yet to adopt a statewide residential code. Local laws will control.See PLRB,
Illinois Building Codes for more information on state level codes.
Cook County 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(Cook County, IL Sec. 102-120. - Regulation of residential buildings and structures.)
...The County adopts the following provisions of the 2021 International Residential Code
by reference to provide the regulations of residential buildings and structures: Chapter 1, Part 1; Chapter 2; Chapter 3, Sections R301 through R312; Chapter 3, Sections R314 through R328 (except
R328.5 through R328.7); Sections R329 through R330; Chapters 4 through 19; Chapter...
Drip Edge
Drip Edge: yes
Ice Barrier
Are ice barriers required for Cook County ? Undetermined
Comments:
No amendments to Table R301.2(1) were found in the municipal code or city website; Therefore, it is unclear if ice barrier underlayment is required.
Comments
Cook County, Illinois, adopted the 2021 International Residential Code (IRC), including appendices AA, AB, AE, AF, AJ, AK, AM, AO, with amendments. Cook County, IL, Muni. Code § 102-120 (adoption and amendments). Please note that Cook County, Illinois adopted specific provisions of the 2021 IRC and appendix AE.
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.
Cook County, Illinois, adopted the 2021 International Existing Building Code (IEBC), including appendices B, C, with amendments. Cook County, IL, Muni. Code § 102-127 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2021 IEBC.
Commercial Building Code
Cook County 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.
Auto Search - beta:
2021 IBC(Cook County, IL Sec. 102-110. - Regulation of buildings and structures.)
...The following provisions of the 2021 International Building Code are hereby adopted
by reference to provide the regulations of buildings and structures in unincorporated
Cook County, Illinois: Chapter 1, Part 1; Chapters 2 through 26; Chapter 28; Chapters 30 through 35; Appendices C
through I; and Sections J101, J102, and J106 through J108, of Appendix J...
Comments
Cook County, Illinois, adopted the 2021 International Building Code (IBC), including appendices C-I, J, with amendments. Cook County, IL Muni. Code § 102-110 (adoption and amendments). Please note that Cook County, Illinois adopted specific provisions of the 2021 IBC and appendix J.
Existing Buildings
Cook County, Illinois, adopted the 2021 International Existing Building Code (IEBC), including appendices B, C, with amendments. Cook County, IL, Muni. Code § 102-127 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2021 IEBC.
Other Building Codes
Cook County, Illinois, adopted the 2021 International Mechanical Code (IMC), including appendix A, with amendments. Cook County, IL, County Code § 102-115 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2021 IMC.
Cook County, Illinois, adopted the 2018 International Energy Conservation Code (IECC), with amendments. Cook County, IL, County Code § 102-125 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2018 IECC.
Cook County, Illinois, adopted the 2021 International Fire Code (IFC), including appendices D-H, J, K, M. Cook County, IL, County Code § 102-126 (adoption and amendments). Please note that Cook County, Illinois, adopted specific provisions of the 2021 IFC.
Cook County, Illinois, adopted the 2014 State of Illinois Plumbing License Law, Plumbers Licensing Code, and Plumbing Code. Cook County, IL, County Code § 102-135 (adoption).
Cook County, Illinois, adopted the 2014 Cook County Electrical Code. Cook County, IL County Code § 102-150 (adoption).
