City of Chicago - Building Energy Code (Illinois)

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Last modified on February 12, 2015.

Rules Regulations Policies Program

Place Illinois

Name City of Chicago - Building Energy Code
Incentive Type Building Energy Code
Applicable Sector Residential
Eligible Technologies Comprehensive Measures/Whole Building, Roofs
Active Incentive Yes

Implementing Sector Local
Energy Category Energy Efficiency Incentive Programs

Date added to DSIRE 2007-03-26
Last DSIRE Review 2012-08-03

References DSIRE[1]


The Chicago Energy Conservation Code (CECC) requires residential buildings applying for building permits to comply with energy efficient measures which go beyond those required by the Illinois Building Energy Code. The applicability of the CECC to commercial construction was superseded when the state of Illinois adopted the more stringent IECC 2009 model code. Illinois state law in 2009 also mandated the IECC 2009 model code for residential buildings, but allowed for cities of home rule and more than 1,000,000 people (namely, Chicago) to adopt more stringent rules.

The CECC establishes standards to minimize solar energy absorbed by building roofs, a condition known as the urban heat island effect. Increased reflecting capacity of individual and aggregate buildings has been associated with cooler temperatures. In general, the energy conservation code establishes minimum standards for fenestration, insulation and roof reflectance. Refer to the Chicago Energy Conservation Code for detailed information on compliance standards for various roof slopes.

Compliance with the code is required for residential buildings that apply for a building permit through the city of Chicago's Department of Buildings. This includes all new buildings or additions to existing buildings, all occupancy changes in existing buildings, all conversions of existing unconditioned space to conditioned space and the replacement of an entire building system, including building envelope components such as the exterior wall finish, roofing membrane, windows, and doors, or the entire mechanical, refrigeration, service water heating, electrical or lighting system.

Building permits for any of these types of projects are required to include a statement of compliance from an architect or engineer listed as a Registered Energy Professional for Residential Buildings on the City of Chicago's Energy Conservation Code website. Compliance documents, such as forms and worksheets, can also be found on the Department's CECC website.

Incentive Contact

Contact Name Public Information Officer
Department City of Chicago
Division Department of Buildings
Address 120 N. Racine

Place Chicago, Illinois
Zip/Postal Code 60602
Phone (312) 744-7606

Fax (312) 744-0682

Authorities (Please contact the if there are any file problems.)

Authority 1: Chapter 18-13 Energy Conservation
Date Effective 2009-04-22
Date Enacted 2008-11-05

  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"