George W. Dunne Cook County Office Building
69 West Washington Street
Suite 2830
Chicago, IL 60602
Phone Number
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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.

Frequently Asked Questions

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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.