Cook County Administration Building
69 W. Washington Street
Suite 2830
Chicago, IL 60602
Phone Number
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COVID-19 Update: In order to protect the health and safety of our staff and customers and to help mitigate the impact of COVID-19, our office will be closed to the public until March 31. However, we are continuing to work remotely. Please use our services online. In-person payments will not be available during this time. We will continue to service our taxpayers, but with limited availability. If you have questions, please email us at:  Staff will respond to all inquiries sent to this email address. To reach us by phone, call 312-603-0500.



Our mission is to  promote the health, safety and welfare of residents in unincorporated Cook County.  In order to perform our mission, we conduct responsible and timely inspections of buildings and properties, as well as enforce all applicable building codes and zoning ordinances.

Mandates and Key Activities

  • Must inspect annually, semi annually or otherwise such buildings, structures, uses, equipment, sites or parts thereof relating to theatres, churches, daycare centers, restaurants, other assembly buildings and all multi dwelling units.
  • Develop and administer rules and regulations governing the erection, construction, alteration, demolition, or relocation of all buildings and structures within designated single family, general residence, commercial, industrial and public zoned districts of unincorporated Cook County including all properties within the Cook County Forest Preserve District.
  • Electronic permits - apply for permits online.