New 2021 Building Code Information
All municipalities in Illinois are required to adopt 2018 or newer building codes for the 2015 International Building Code (IBC), International Residential Code (IRC), and International Existing Building Code (IEBC) by January 1, 2025. The City of Greenville has adopted 2015 IBC, IRC, and IEBC code, and has determined that the best new version to adopt is the 2021 edition. As advised by the Illinois Municipal League ( IML), the city would not want to adopt the 2024 version of the code because often the latest code restrictions prove to be problematic and are subsequently amended by the controlling bodies (not the city of Greenville). Like purchasing a new model vehicle that the manufacturer has not worked out all the kinks.
Most of the changes were organizational in nature to apply the existing local amendments to the new 2021 IBC, IRC, and IEBC. Overall, we did not make many substantive changes because our goal was to preserve the existing local amendments to the greatest extent possible. The substantive changes to the local amendments are summarized below:
IBC, Overview: https://codes.iccsafe.org/content/IBC2021P2
IRC, Overview: https://codes.iccsafe.org/content/IRC2021P3
IEBC, Overview: https://codes.iccsafe.org/content/IEBC2021P2