Verified 2026 AHJ Hub
Illinois Jurisdiction
Audited Q3 2026
Cook County Commercial Permit Fees & Rules
Official municipal fee schedule estimator, mandatory contractor bond requirements, and plan review SLAs for commercial construction in Cook County, Illinois.
Direct Answer Engine Specifications (Cook County) Verifiable AHJ Factsheet
- Enforcing Department
- Cook County Dept of Building and Zoning
- Governing Ordinance
- Cook County Building Code Ord 102-120
- Plan Check SLA
- 15 - 22 Business Days
- Surety Bond Required
- $20,000 Min
AHJ Verified Workstation
2026 Fee Schedule Enforced
Cook County Commercial Permit Fee Estimator
$
Quick Presets:
📐 Applied Municipal Formula Tier
Tier Valuation Formula: $1,665 base fee + $3.80 per $1,000 above $250,000 valuation.
Itemized Cost Assessment Verified
Base Municipal Permit Fee: $0.00
Plan Review Fee (65%): $0.00
Tech & Admin Surcharge (4%): $0.00
Cost Ratio Breakdown Base 58% | Review 38% | Tech 4%
Total Estimated Cost: $0.00
Mandatory Contractor Prerequisites & Submittal Checklist
Cook County AHJ Requirements Permit Prerequisite Instant Underwriting
Contractor Surety License Bond
Cook County requires an active $20,000 Illinois Contractor License Bond on file prior to plan submittal.
Insurance Mandate Same-Day COI
Commercial COI Liability ($1M+)
Minimum $1.0M General Liability COI naming Cook County Building Dept as Certificate Holder.
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🏛️ Authority Having Jurisdiction (AHJ)
Verified Contact Department Name: Cook County Dept of Building and Zoning
Phone Number: (312) 603-0500
Physical Address: 69 W Washington St, Chicago, IL 60602
Enforced Ordinance: Cook County Building Code Ord 102-120
Submittal Pathways
Cook County Trade Workstation Directories
Direct links to specialized trade calculators and sub-trade bond rules in Cook County:
Commercial Building & Structural
Plan review fee: 75% | Tech surcharge: 5%
Open Dedicated Workstation →
Commercial Mechanical & HVAC Systems
Plan review fee: 40% | Tech surcharge: 4%
Open Dedicated Workstation →
Commercial Electrical Systems
Plan review fee: 40% | Tech surcharge: 4%
Open Dedicated Workstation →
Commercial Plumbing Systems
Plan review fee: 35% | Tech surcharge: 4%
Open Dedicated Workstation →
Commercial Kitchen & Grease Interceptor
Plan review fee: 55% | Tech surcharge: 4%
Open Dedicated Workstation →
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