Cook County, IL Rental Inspections: Inspection Programs (2026)
Key Facts
- Inspection frequency
- At least once every 4 years
- Owner notice required
- 3 business days minimum
- Tenant notice required
- 2 calendar days minimum
- Applies to
- Unincorporated Cook County only
- Fine range
- $100–$1,000 per day
Summary
Unincorporated Cook County requires a Department inspection of every licensed rental unit at least once every four years to confirm building and health-code compliance.
(a)The Department is authorized and empowered to make all inspections of Rental Units... (c)The Department shall notify the Owner of any inspection at least three business days in advance... (d)The Owner shall provide sufficient notice of inspection to tenant (i.e., at least two calendar days in advance)... (e)The Department will inspect each Rental Unit at least once every four years to ensure compliance with all applicable requirements of this Section...
Full Breakdown
Under the Residential Rental License Ordinance, the Department of Building and Zoning may inspect any Rental Unit to verify compliance with the County Building Ordinance, Zoning Ordinance and Public Health and Private Nuisance Ordinance. Inspections run weekdays during regular business hours. The Department must give the owner at least three business days' notice and the owner must give the tenant at least two calendar days' notice; each unit is inspected at least once every four years, and the Department can seek a court-issued Order of Inspection if consent is withheld. This program applies only in unincorporated Cook County: incorporated municipalities such as Chicago run their own rental inspection rules.
Violations & Fines
Refusing entry without a court order, failing to notify the tenant of a scheduled inspection, or letting the unit fail compliance can trigger license suspension, denial or revocation and a fine of $100 to $1,000 per day the violation continues.
Frequently Asked Questions
Can I refuse to let the County inspect my rental unit?
Does this inspection program apply inside Chicago?
Sources & Official References
Other rules in Cook County
Compare Cook County to another location·View the Illinois rental inspections overview
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