Residential Room Addition/Alteration Permit

Before beginning any new construction addition and/or alterations (including basement build outs) to existing residential buildings, residents must obtain necessary building permits through Development Services.

As of March 1, 2013 the City of Naperville has adopted the latest codebooks used for design and construction. The following is a list of the codebooks that will be utilized:

  • 2012 International Building Code
  • 2012 International Residential Code
  • 2012 International Property Maintenance Code
  • 2012 International Electric Code
  • 2012 International Energy Code
  • 2012 International Fire Code
  • 2012 International Fuel Gas Code
  • 2012 International Mechanical Code
  • 2012 Illinois Energy Conservation Code
  • 2012 International Plumbing Code
  • 2011 National Electric Code (N.E.C.)
  • 2012 National Fire Code
  • Illinois State Plumbing Code, Current Edition
  • Illinois Accessibility Code ,Current Edition
  • Naperville Building Code Amendments, Title V

Please download the following application packets and review the submittal requirements. Applications without completed documentation will not be considered.

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