Adopted Building Codes

This page is a listing of the codes that are enforced by DeKalb County, effective July 1, 2019.

RESIDENTIAL

• 2015 International Residential Code*
  • Code: https://codes.iccsafe.org/content/IRC2015/toc
  • Adoption Ordinance*: https://dekalbcounty.org/wp-content/uploads/2019/06/ord-2019-33.pdf
    – 2015 International Mechanical Code
    – 2015 International Fuel Gas Code
    – 2014 National Electrical Code
• 2014 Illinois State Plumbing Code (by IL State Plumbing Inspector)
  Code: http://www.ilga.gov/commission/jcar/admincode/077/07700890sections.html
• 2018 IECC – Illinois State Energy Conservation Code*
  Code: http://www.ilga.gov/commission/jcar/admincode/071/07100600sections.html
• DeKalb County Code

*NOTE: Amended

COMMERCIAL OR INDUSTRIAL

• 2015 International Building Code*
  • Code: https://codes.iccsafe.org/content/IBC2015/toc
  • Adoption Ordinance: https://dekalbcounty.org/wp-content/uploads/2019/06/ord-2019-33.pdf
    – 2015 International Fire Code
    – 2014 National Electrical Code
    – 2015 International Mechanical Code
    – 2015 International Fuel Gas Code
    – 2015 International Existing Building Code
• 2014 Illinois State Plumbing Code (by IL State Plumbing Inspector)
  Code: http://www.ilga.gov/commission/jcar/admincode/077/07700890sections.html
• 2018 IECC – Illinois State Energy Conservation Code*
  Code: http://www.ilga.gov/commission/jcar/admincode/071/07100600sections.html
• 2018 Illinois Accessibility Code
  Code: http://www.ilga.gov/commission/jcar/admincode/071/07100400sections.html
• DeKalb County Code

*NOTE: Amended