Building Permits

Residents must obtain necessary building permits through Development Services before beginning any new construction or additions to existing buildings, including decks, fences or pools. Municipal codes also regulate sign installation, water softeners, air conditioners, swimming pools, fences, antennas, lawn sprinkler systems, driveways and accessory outbuildings.

  • For Inspection Dispatch:
    Call (630) 420-6100, Option 1
    Hours: 8 a.m. to 4 p.m., CLOSED 1 to 2 p.m. daily.
  • For Building Information and the Permit Counter: 
    Call (630) 420-6100, Option 2
    Hours: 8 a.m. to 4 p.m., CLOSED 1 to 2 p.m. daily.
  • For Zoning Assistance:
    Call (630) 420-6100, Option 5

Many commercial and residential development permits are available on the website in the Building and Development Permits index.

For helpful tips on building permits in Naperville, download the City of Naperville's Guide to Building Permits.

Plan Review Standards

Per Ordinance 12-159, passed by the City Council in December 2012, all plans will be reviewed based on:

  • 2012 International Building Code
  • 2012 International Residential Code
  • 2012 Illinois Energy Conservation Code
  • 2012 International Property Maintenance Code
  • 2012 International Fire Code
  • 2012 International Fuel Gas Code
  • 2012 International Mechanical Code
  • 2012 International Plumbing Code
  • 2012 International Existing Building Code
  • 2012 International Swimming Pool and Spa Code
  • 2006 International Electric Code
  • 2011 National Electric Code (N.E.C.)
  • 2006 Life Safety Code
  • National Fire Code (NFPA), Current Edition
  • Illinois State Plumbing Code, Current Edition
  • Illinois Accessibility Code, Current Edition
  • Naperville Building Code Amendments, Title V

For questions about the new code requirements, contact the Development Services counter at (630) 420-6100, Option 2. 

Single Family Residential Structure - Review Checklists

In an effort to reduce review times related to the review of Single Family Residential Structures, the City of Naperville's Building Review Team has created checklists to assist the building community as well as City staff.

The checklists have been created for our residential reviewers to ensure that all plans are reviewed adequately and appropriately.

For questions, please call (630) 420-6100, Option 9, and ask to speak to a project manager.

Help Prevent Lead Exposure

Contractors play an important role in protecting public health by helping prevent lead exposure. Ordinary renovation and maintenance activities can create dust that contains lead, which is harmful to children and adults in even small amounts.

To ensure maximum safety, contractors performing work that disturbs lead-based paint in homes, child care facilities, and schools built before 1978 must:

  • Be EPA certified, and
  • Follow specific work practices to prevent lead contamination.

To learn more about how you can meet these requirements contact the National Lead Information Center at 1-800-424-LEAD (5323) or visit