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Cook County, IL Code Violation Reporting: How to Report (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Department
Building and Zoning
Location
69 W. Washington, Ste 2840
Online
ePermit portal
Compliance
30 days after notice

Summary

Residents in unincorporated Cook County can report building, zoning, and property violations to the Cook County Department of Building and Zoning. Reports can be filed online through the ePermit portal, by phone, or in person at 69 W. Washington St., Suite 2840, Chicago.

These county ordinances apply to unincorporated areas of Cook County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

If the violation requires a re-inspection to establish compliance (junk and debris, RV or trailer on a Residential-zoned lot, etc.), please contact the violation-issuing inspector (contact information should be on the violation notice) or email: inspections.bnz@cookcountyil.gov; violations.bnz@cookcountyil.gov. If you are sent notice to appear for a hearing or court, you are required to appear, unless your presence is waived in writing by the Cook County Department of Building and Zoning. Failure to appear at the hearing may result in a default order being entered against you and the imposition of the maximum fine provided by law for each alleged offense. As stated in 102-105.4-5, any violation of, or resistance to, or interference with the enforcement of any of the provisions of this ordinance shall be punished by a fine of not less than one hundred dollars ($100.00) nor more than one thousand dollars ($1,000.00) for each offense; and each day a violation continues to exist shall constitute a separate offense.

Source: Cook County Building and Zoning ViolationsView official code

Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.

Full Breakdown

The Cook County Department of Building and Zoning handles code enforcement for unincorporated areas of Cook County. This department enforces the Cook County Building Code, Residential Code, Energy Code, Mechanical Code, Electrical Code, Plumbing Code, and Zoning Ordinance. Complaints can be filed regarding: construction without permits, unsafe structures, zoning violations, occupancy issues, and property maintenance problems. For properties within incorporated municipalities (like Chicago, Evanston, Oak Park, etc.), residents must contact that municipality's code enforcement office. Cook County adopted the 2018 International Building Code with local amendments. The department investigates complaints and issues violation notices requiring compliance within 30 days.

Violations & Fines

Properties found in violation must be brought into compliance within 30 days. Fines and penalties are determined by the Cook County Administrative Hearings process.

Frequently Asked Questions

How do I report a code violation in unincorporated Cook County?
Contact the Cook County Department of Building and Zoning at 69 W. Washington St., Suite 2840, Chicago. You can also file complaints through the online ePermit portal at bzpermits.cookcountyil.gov.
Does Cook County enforce codes in Chicago?
No. The City of Chicago has its own building department. Cook County Building and Zoning only has jurisdiction over unincorporated areas of Cook County.

Sources & Official References

Other rules in Cook County

All Cook County rules

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