Cook County Commercial Mechanical & HVAC Systems Permit Calculator
Official fee schedule logic based on Cook County Building Code Ord 102-120. Includes plan review fees, technology surcharges, and prerequisite contractor bond rules.
- AHJ Authority
- Cook County Dept of Building and Zoning
- Enforced Ordinance
- Cook County Building Code Ord 102-120
- Plan Check SLA
- 15 - 22 Business Days
- Surety Bond Required
- $20,000
Cook County Commercial Permit Fee Estimator
Tier Valuation Formula: $1,665 base fee + $3.80 per $1,000 above $250,000 valuation.
Mandatory Contractor Prerequisites & Submittal Checklist
Cook County AHJ RequirementsContractor Surety License Bond
Cook County requires an active $20,000 Illinois Contractor License Bond on file prior to plan submittal.
Commercial COI Liability ($1M+)
Minimum $1.0M General Liability COI naming Cook County Building Dept as Certificate Holder.
Commercial Mechanical & HVAC Systems Submittal Rules in Cook County
Specialized trade submittals for Commercial Mechanical & HVAC Systems in Cook County, Illinois are administered by Cook County Dept of Building and Zoning. Permits are required prior to installing, extending, replacing, or altering any mechanical, electrical, plumbing, structural, or life-safety infrastructure under Cook County Building Code Ord 102-120.
Intake review for Commercial Mechanical & HVAC Systems requires verified trade licensing, minimum contractor general liability COI filings ($1,000,000+), and compliance with enforced regional code editions (42-inch foundation frost-line depth requirement.).
Mandatory Submittal Plan Documents & PE Engineering Stamps
Plans submitted to Cook County Dept of Building and Zoning for Commercial Mechanical & HVAC Systems must include scaled engineering drawings and specifications:
- MEP Mechanical Load Calculations
- COMcheck Energy Compliance Form
Inspection Sequence for Commercial Mechanical & HVAC Systems
Work performed under a Commercial Mechanical & HVAC Systems permit in Cook County requires mandatory rough-in and final field inspections. Rough-in inspections must be conducted and signed off by the municipal inspector prior to covering or concealing any piping, ductwork, structural framing, or electrical conductors. Final inspection and system testing are required for building certificate of completion issuance.
Cook County Dept of Building and Zoning Official Building Department
69 W Washington St, Chicago, IL 60602 | Phone: (312) 603-0500