Code Violation Reporting in Chicago, IL (2026)
3 verified code violation reporting rules for Chicago, Illinois, sourced directly from the municipal code and official government pages.
Verified from official government sources
How to Report
Chicago uses the CHI311 system for reporting non-emergency code violations. Residents can call 311, visit 311.chicago.gov, or use the CHI311 mobile app. The Department of Buildings, Department of Streets and Sanitation, and other agencies handle violations based on type.
How to Report Code Violations in Chicago
Some RestrictionsResponse Times
Chicago code enforcement response times vary by violation type. Emergency structural issues receive same-day response from the Department of Buildings. Sanitation complaints are typically investigated within 3-7 business days. Building code complaints may take 7-14 days for non-emergency initial inspection.
Chicago Code Enforcement Response Times
Some RestrictionsCommon Violations
The most common code violations in Chicago include sanitation code complaints (garbage in alleys, overflowing dumpsters), building maintenance issues, illegal conversions, graffiti, abandoned vehicles, and rodent complaints. Sanitation violations are consistently the highest-volume 311 category.
Common Code Violations in Chicago
Some RestrictionsLooking for Cook County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Chicago city rules.
Code Violation Reporting in Cook County →