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File #: 25-1379    Version:
Type: Report Status: Agenda Ready
File created: 10/20/2025 In control: Building Review Board
On agenda: 11/19/2025 Final action: 11/19/2025
Title: Recommend the Adoption of the 2024 International Existing Building Code with the Proposed Amendment to Section 301.3 and Keep the Existing Amendments
Attachments: 1. 2024 Code Analysis - Master List
Related files: 25-1328
BUILDING REVIEW BOARD AGENDA ITEM
ACTION REQUESTED:
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Recommend the Adoption of the 2024 International Existing Building Code with the Proposed Amendment to Section 301.3 and Keep the Existing Amendments
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DEPARTMENT: Transportation, Engineering and Development
SUBMITTED BY: Mark Dudash, Chief Building Official
BOARD/COMMISSION REVIEW:
Staff presented the proposed local amendment to the 2024 International Existing Building Code (IEBC) to the Building Review Board (BRB) at the October 15, 2025 meeting. This proposed amendment clarifies existing language currently in the local amendments to the International Building Code and relocates this text to amendments to the International Existing Building Code. There was no public testimony.
BACKGROUND:
Title 5 of the Naperville Municipal Code outlines the City's building regulations. Every six years or as required, the City adopts the then current applicable state, national and/or international building codes with or without local amendments.
Significant Changes and Amendments
A complete matrix highlighting the significant changes identified for each code section is attached. Within the attached table, an analysis is included for each code change, including whether the change is more or less restrictive, as well as the potential impact on cost and safety.
Where reasonable and consistent with City policies, staff recommends the adoption of the ICC set of codes as presented. However, there are items that do not meet these criteria and are therefore proposed as a local amendment. The significant changes and the proposed local amendment to the International Existing Building Code (IEBC) is provided below.
DISCUSSION:
Staff identified 13 significant changes to the 2024 IEBC in the attached matrix and is requesting one new amendment to the 2024 IEBC. The Fire Department would like to modify Section 301.3: Alteration, addition or change of occupancy, by adding a new sub-section: 301.3.4.

Section 301.3....

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