Chicago Bathroom Remodel Permits 2026

Chicago bathroom remodel permit fees, plan review, and required inspections for 2026.

Chicago Bathroom Remodel permit basics

  • Building department: City of Chicago Department of Buildings
  • Department URL: https://www.chicago.gov/city/en/depts/bldgs.html
  • Permit fee typical: $150 - $900 permit fee
  • Plan review + approval: 7-21 business days
  • Inspections required: 3-5 inspections (rough plumbing, rough electrical, framing, final)

Chicago Bathroom Remodel common issues

Ventilation requirements (50 CFM minimum), GFCI placement, waterproofing in showers (tile + grout no longer accepted as waterproof).

Chicago-specific permitting context

Chicago requires licensed Self-Certifying Professional (architect/engineer) for many alterations. Plumbing requires Chicago-specific master plumber license separate from Illinois state license.

Climate factors: Severe winters with deep frost lines (42 inch) for foundations; lake-effect snow; freeze-thaw cycles harsh on masonry

Illinois licensing for Bathroom Remodel contractors

Illinois Department of Financial and Professional Regulation (IDFPR) - required: Varies by trade (plumbing $300, roofing $125). Board: https://www.idfpr.illinois.gov.

Mechanics lien deadline in Illinois: 4 months from last work (residential); 2 years to file suit. Preliminary notice: 60-day notice required from subcontractors on owner-occupied residential.

Chicago Bathroom Remodel sales tax

Illinois sales tax: 6.25% + local (~8.8% combined avg). Contractor pays Use Tax on materials. Real property labor exempt. Sale of TPP to customer is taxable retail sale.

Verify with the Illinois Department of Revenue.

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