Ordinances and Codes

Regulatory Codes

On July 29, 2019, the Cook County Board of Commissioners approved an ordinance adopting new regulatory codes.  

Cook County Codes 2023

More information:

Illinois Accessibility Code (effective April 24, 1997)


2021 International Energy Conservation Code

To obtain this code, please go to the website for the International Code Council (ICC) at: http://www.iccsafe.org

Vacant Building Ordinance


Cook County Zoning Ordinance

Ord. No. 01-O-30, as adopted by the County Board on November 6, 2001. Amendments are indicated by parenthetical history notes following amended provisions. The absence of a history note indicates that the provision remains unchanged from the original. Obvious misspellings and punctuation errors have been corrected without notation. For stylistic purposes, headings and catchlines have been made uniform, and the same system of capitalization, citations to state statutes and expression of numbers in text as appears in the County Code has been used. Additions for clarity are indicated by brackets.

The Cook County Zoning Ordinance was most recently amended in 2003. Included sections are:

  • Cook County Zoning Ordinance of 2003
  • Floodplain Ordinance for Cook County
  • Cook County Subdivision Manual
  • Tree Preservation, Landscaping and Screening
  • Wireless
  • Governing the Processing of Planned Use Development, Map Amendment and Special Use Applications Filed Prior to the Effective Date of the 2003 Ordinance
  • Billboard and Off-Premise Outdoor Advertising Sign Ordinance of Cook County

Click on each link to view various sections:

Land Development Ordinances

Appendix A  - Zoning

Tree Preservation, Landscaping and Screening Ordinance

Wireless Telecommunication Facilities Ordinance

Billboard and Off-Premises Outdoor Advertising Signs Ordinance

Zoning Use Certificate Ordinance