Lemont, Illinois Building Codes

Updated : 06/13/2024

Overview

Lemont, Illinois, adopted the 2021 International Residential Code (IRC), including appendices AF, AH, AK, AM, AO, AQ, AT, with amendments. Lemont, IL, Muni. Code § 15.06.010 (adoption) and § 15.06.020 (amendments). Lemont, Illinois, adopted the 2021 International Building Code (IBC), including appendices C, F, G, I, with amendments. Lemont, IL, Muni. Code § 15.04.010 (adoption) and § 15.04.020 (amendments). Lemont, Illinois, adopted the 2021 International Existing Building Code (IEBC), with amendments. Lemont, IL, Muni. Code § 15.22.010 and § 15.22.020 (amendments).

Helpful resources for Lemont, 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.

Lemont 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(Lemont, IL 15.06.010. - Adopted.)

...There is adopted by reference, as if fully set out in this chapter, that certain code known as the International Residential Code for One- and Two-Family Dwellings, 2021 edition, including Appendices AF Radon Control Measures, AH Patio Covers, AK Sound Transmission, AM Home Day Care, AO Automatic Vehicular Gates, and AT Solar Ready Provisions,...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Lemont ? Yes
Citation: Lemont, IL, Muni. Code § 15.06.020 (amendments).
Municipal Code https://www.lemont.il.us/home/showpublisheddocument/4521/638387766325770000
Comments:

Table R301.2(1) Climatic and geographic design criteria. Delete in its entirety and in lieu thereof substitute the following new Table R301.2(l): Updated TABLE R301.2(1)

TABLE R301.2 CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

Government Officials
Last Name First Name Title E-mail Phone Note
Building Department permits@lemont.il.us 630-257-1580

Comments

Lemont, Illinois, adopted the 2021 International Residential Code (IRC), including appendices AF, AH, AK, AM, AO, AQ, AT, with amendments. Lemont, IL, Muni. Code § 15.06.010 (adoption) and § 15.06.020 (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.

Lemont, Illinois, adopted the 2021 International Existing Building Code (IEBC), with amendments. Lemont, IL, Muni. Code § 15.22.010 and § 15.22.020 (amendments).

Commercial Building Code

Lemont 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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2021 IBC(Lemont, IL 15.22.010. - Adopted.)

...There is adopted by reference, as if fully set out in this chapter, that certain code known as the International Existing Building Code 2021 edition, as published by the International Code Council, Inc., together with the additions, insertions, deletions and changes set forth in section 15.22.020, one copy of which has been for a period of more than 30 days...

Comments

Lemont, Illinois, adopted the 2021 International Building Code (IBC), including appendices C, F, G, I, with amendments. Lemont, IL, Muni. Code § 15.04.010 (adoption) and § 15.04.020 (amendments).

Existing Buildings

Lemont, Illinois, adopted the 2021 International Existing Building Code (IEBC), with amendments. Lemont, IL, Muni. Code § 15.22.010 and § 15.22.020 (amendments).

Other Building Codes

Lemont, Illinois, adopted the 2021 International Property Maintenance Code (IPMC), with amendments. Lemont, IL, Muni. Code § 15.08.010 (adoption) and § 15.08.020 (amendments).

Lemont, Illinois, adopted the 2020 National Electrical Code (NFPA 70), with amendments. Lemont, IL, Muni. Code § 15.10.010 (adoption) and § 15.10.020 (amendments).

Lemont, Illinois, adopted the 2021 International Mechanical Code (IMC), with amendments. Lemont, IL, Muni. Code § 15.14.010 (adoption) and § 15.14.020 (amendments).

Lemont, Illinois, adopted the 2021 International Fuel Gas Code (IFGC), with amendments. Lemont, IL, Muni. Code § 15.16.010 (adoption) and § 15.16.020 (amendments).

Lemont, Illinois, adopted the 2021 International Fire Code (IFC), with amendments. Lemont, IL, Muni. Code § 15.20.010 (adoption) and § 15.20.020 (amendments).

Lemont, Illinois, adopted the 2021 International Swimming Pool and Spa Code (ISPSC), with amendments. Lemont, IL, Muni. Code § 15.24.010 (adoption) and § 15.24.020 (amendments).