Building Code Information

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Building Codes

10-1-1: Building Codes Adopted By Reference: There are hereby adopted by reference the following regulations governing all single-family residential buildings and appurtenances, multi-family residential buildings and appurtenances, and all other buildings and structures hereinafter erected, installed, altered, converted, remodeled or structurally repaired, demolished, moved or their use or occupancy established or changed collectively to be known as the Oak Brook Building Code Regulations.

International Building Code: 2021 edition, including appendix chapters A, C, E, F, G, I, and K, published by the International Code Council, Inc.

International Residential Code: 2021 edition, including appendix chapters A, B, C, D, F, G, H, I, J, K, M, O, Q, R, S, T, and U, published by the International Code Council, Inc.

International Mechanical Code: 2021 edition, including appendix chapter A, published by the International Code Council, Inc.

Illinois Plumbing Code: 77 Illinois administrative code 890 et seq., as amended.

National Electric Code (NEC): 2020 edition, published by the National Fire Protection Association.

Illinois Safety Code For Elevators And Escalators: State of Illinois safety code for elevators and escalators as follows:

  1. American Society Of Mechanical Engineers (ASME):
    • Safety code for elevators and escalators (ASME A17.1-2013/CSA B44-2013) and performance based safety code for elevators and escalators (ASME A17.1-2007/CSA B44.7-07);
    • Guide for inspection of elevators, escalators and moving walks (ASME A17.2-2012);
    • Safety code for existing elevators and escalators (ASME A17.3-2005), but only as required under section 35(h) and (i) of the act and subsection F1d of this section;
    • Safety standards for platform lifts and stairway chairlifts (ASME A18.1-21011);
    • Standard for qualification of elevator inspectors (ASME QEI-1-2013).
  2. American Society Of Civil Engineers (ASCE); American National Standards Institute (ANSI):
    • Automated people mover standards (ANSI/ASCE/T&DI 21-13);

International Property Maintenance Code: 2021 edition, including appendix chapter A, published by the International Code Council, Inc. Illinois Energy Conservation Code: International energy conservation code, published by the International Code Council, Inc., as adopted and amended by the state of Illinois. International Existing Building Code: 2021 edition, published by the International Code Council, Inc. International Fuel Gas Code: 2021 edition, including appendix chapters A, B, C, and D (see international fuel gas code section 101.3, 2021 edition), published by the International Code Council, Inc. International Swimming Pool And Spa Code: 2021 edition, published by the International Code Council, Inc. International Plumbing Code: Those sections of the international plumbing code, 2021 edition, including appendix chapters C and F, published by the International Code Council, Inc., which address subjects not expressly governed by the state of Illinois plumbing code, 2014 edition, published by the Illinois department of public health. (Ordinance G-1084, 9-27-2016) View International Codes

(The above codes effective November 10, 2022) Link to Building & Fire Codes & Amendments 2021

Energy Code

The State of Illinois has adopted and amended the International Energy Conservation Code. The following link includes the amended sections only Illinois Energy Conservation Code Amendments (PDF).