Cook County, IL Building Safety: Building Inspections (2026)
Key Facts
- Scope
- Unincorporated County + participating municipalities
- Preliminary inspections
- During construction, ongoing
- Final inspection
- Required before certificate of compliance
- Stage notice duty
- Permit holder must notify assigned inspector
- Re-inspection fee
- Per Field Inspection Fee Schedule, Sec. 32-1
Summary
Cook County's Building Department runs preliminary inspections during construction and a mandatory final inspection before it will issue a certificate of compliance, and the Building Commissioner keeps a record of every violation found along the way, under Building Ordinance Sec. 102-105(4)3.b, covering unincorporated Cook County and participating municipalities.
Preliminary Inspection. The Building Commissioner shall conduct preliminary inspections from time to time during construction of the work for which he has issued a permit; and he shall maintain a record of such examinations and inspections and of all violations of this Ordinance...Final Inspection. Upon completion of the building or structure, and before issuance of the certificate of compliance required in Subsection 102-105(3)3, a final inspection shall be made and any violations of the approved plans and permit, if any, shall be noted...
Full Breakdown
The County Building Department runs three kinds of inspections under Sec. 102-105(4)3.b: preliminary checks during construction, a final inspection before the certificate of compliance issues, and periodic re-inspection tied to each stage defined in the permit. Permit holders must notify the assigned inspector when a stage is complete; missed notice or plan deviations trigger a re-inspection fee under the Field Inspection Fee Schedule (Sec. 32-1) and can halt work on later stages at the inspector's discretion. Applies in unincorporated Cook County and municipalities that have adopted the County Building Ordinance by agreement.
Violations & Fines
Skipping a required stage or final inspection call, or working past a stop-work order, is itself a code violation under Sec. 102-105(4)3.a, fined $500 to $3,000 per offense and escalating on repeat violations within two years.
Frequently Asked Questions
Who has to schedule building inspections in Cook County?
What happens if I miss a required inspection?
Sources & Official References
Other rules in Cook County
Compare Cook County to another location·View the Illinois building safety overview
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