Joe Kreidl, Director
Building & Code
303 W. Wesley Street, 1st Fl,  
Hours: M-F 8 a.m. to 5 p.m.
Phone: 630-260-2050

Codes & Design Criteria

The following codes have been adopted by the City of Wheaton, adopted by the state of Illinois and enforced by the City, or are referenced within one of the adopted building codes. These codes are applicable for the design and construction of any structure, including new construction, additions, alterations, remodeling or other similar projects. All amendments to the Wheaton City Code can be viewed at

Single-Family Dwellings and Accessory Structures

Construction of a single-family detached dwelling; two-unit single-family attached dwelling; or accessory structure such as garage, deck, or gazebo is required to comply with the following Codes:

  • Wheaton City Code: Chapter 22, Building and Building Regulations
  • ICC International Residential Code 2003 (including Appendix Chapters A, B, C, G, H and J)
  • NEC National Electric Code 2002
  • ICC International Energy Conservation Code 2012
  • Illinois Plumbing Code
  • Wheaton Zoning Ordinance 
  • Also see project-specific City of Wheaton informational handouts

Structures Other Than Single-Family Dwellings

Construction of any structure other than a single-family dwelling must comply with the following City adopted codes:

City Adopted Codes

  • Wheaton Zoning Ordinance
  • Wheaton City Code, Chapter 22, Building and Building Regulations
  • ICC International Building Code 2003 (including Appendix Chapter I)
  • ICC International Plumbing Code 2003
  • NEC National Electric Code 2002
  • ICC International Mechanical Code 2003
  • ICC International Fuel Gas Code 2003
  • ICC International Fire Code  2003 (including Appendix Chapters E, F, and G)
    • NFPA 13 Installation of Sprinkler Systems 1999
    • NFPA 72 National Fire Alarm Code 1999

State of Illinois Adopted Codes

  • Illinois Energy Conservation Code references the ICC International Energy Code 2012 with references to ASHRAE/IESNA 90.1 – 2010 Energy Standard (except for lower rise residential)
  • Illinois Code for Safety to Life from Fire in Buildings and Structures references the NFPA 101, 2000 Edition Life Safety Code
  • Illinois Plumbing Code 2004
  • Illinois Accessibility Code 1997
  • Illinois Elevator Safety and Regulation Act references ASME A17 Safety Code for Elevators and Escalators 2000
  • Illinois Food Service Sanitation Code
    • Title 77 of the Illinois Administrative Code, Health Chapter I, Illinois Department of Public Health
    • Subchapter M, Food, Drug & Cosmetics, Part 750
    • Enforced by the DuPage County Health Department

Federal Requirements

  • American with Disabilities Act
  • Federal Fair Housing Act
  • OSHA Safety Requirements

Existing Structures Other Than Single-Family Dwellings

When adding on, remodeling, altering or changing the use of an existing structure, see Chapter 34 of the ICC International Building Code 2003 for an alternative method of conforming to codes.

Site Development

Site development and improvements are required to comply with the following codes and/or other governing agencies and their regulations. These apply to all improvements made to a site, including – but not limited to – planned unit developments, subdivisions, one-lot development, new buildings and building additions. These also include work such as water lines, sanitary sewers, storm sewers, roads, drive approaches, sidewalks and grading.

  • Wheaton City Code:
    • Chapter 22: Grading, Grading Survey
    • Chapter 34: Floodplain, Stormwater, Runoff and Erosion Control
    • Chapter 58: Streets, Sidewalks and Other Public Places
    • Chapter 62: Subdivisions
    • Chapter 74: Utilities
  • Wheaton Zoning Ordinance 
  • City of Wheaton Design Details and Standards
  • DuPage County:
  • Countywide Stormwater and Flood Plain Ordinance
  • Department of Transportation (for developments along DuPage County roads and any new use)
  • Sanitary District: Sewer permits
  • Wheaton Sanitary District: Sewer permits
  • Federal Emergency Management Agency (FEMA)
    • Technical Bulletin 10-01 ensuring that structures built on fill-in or near special flood hazard areas is reasonably safe from flooding
    • National Flood Insurance Program
  • State Highway Authority: For developments along state roads such as Roosevelt Road
  • Illinois Water Well Construction Code: For abandonment of water wells

Construction and Demolition Site Regulations

See Construction and Demolition Site Regulations informational handout.

Design Criteria

The following chart outlines the design parameters that dictate how and what to build in Wheaton. These criteria are required under the International Building Code and the International Residential Code.

Ground snow load 25 psf
Wind speed 3 second 90 normal 75
Seismic design category 21.8 percent/B
Weathering Severe
Frost line depth 42 inches
Termite Moderate to heavy
Decay Slight to moderate
Winter design temperature -4 degrees F
Ice shield underlayment Yes
Flood hazard June 15, 1979
Air freezing index 2000
Mean annual temperature 50 degrees F