The City of Warrenville has adopted, and enforces the following building codes:

• 2009 International Energy Conservation Code
• 2006 International Building Code - Amendments
• 2006 International Mechanical Code
• 2006 International one and two family dwelling Code
• 2006 International Fire Code 2 - Amendments
• 2006 NFPA Life Safety Code
• 2005 National Electric Code - Amendments
• 2004 Illinois State Plumbing Code - Amendments
• 1997 Illinois Accessibility Code

To contact the Community Development Department call 630/393-9050 or fax 630/393-5758.