Chicago, IL permit applications

Working in Chicago? Save your contractor license, insurance and bond details once, then produce a complete application for the next Chicago job — building, mechanical, re-roof or plumbing — in under a minute, plus the OSHA paperwork your crew needs on site.

Chicago permits by trade

Who pulls it, what the packet contains, and the inspection sequence — per trade.

What a Chicago permit costs

Estimate the fee by trade and job value before you sign the work, and see the lines crews forget to quote.

Chicago permit cost estimator

Chicago inspection sequence

The order of calls by trade, what each inspector checks, and the failure that sends crews back most often.

Chicago inspection guide

Documents Chicago contractors generate most

Where Cook County permits are filed

Cook County Department of Building and Zoning

Jurisdiction detail confirmed from the county's own website. Cities inside Cook County may run their own building department.

Who reviews the permit near Chicago

Incorporated cities and towns here run their own building departments — a county permit does not cover work inside their limits.

Files with

Chicago Department of Buildings

Department page

Online portal: Inspection, Permitting & Licensing Portal

City of Chicago contractor licensing is required in addition to any state credential.

Illinois has no statewide residential code, so Chicago enforces its own Chicago Construction Codes.

Files with

Village of Schaumburg Community Development — Permit Services

Department page

Every contractor working in the village, local or not, must hold a Village Contractor Registration before a permit is issued.

Village jurisdiction is separate from Cook County building review.

What a Cook County packet actually contains

Built by the same engine the app uses — these are the forms and attachments the scope triggers in this jurisdiction, not a generic list.

Re-roof / roof replacement in Cook County

4 documents on a $12,000 job.

  • Illinois has no statewide residential permit — the municipality or county issues it, and Chicago-area jurisdictions frequently require a licensed and bonded contractor registered locally.
  • Illinois Roofing Industry Licensing Act requires a state roofing contractor license number on the application for any roofing scope.

HVAC changeout in Cook County

3 documents on a $12,000 job.

  • Illinois has no statewide residential permit — the municipality or county issues it, and Chicago-area jurisdictions frequently require a licensed and bonded contractor registered locally.

Window / door replacement in Cook County

4 documents on a $12,000 job.

  • Replacement windows must meet the state energy code U-factor and SHGC for this climate zone, and any bedroom opening must still meet emergency egress clear-opening minimums.
  • Illinois has no statewide residential permit — the municipality or county issues it, and Chicago-area jurisdictions frequently require a licensed and bonded contractor registered locally.
  • Illinois enforces the state Energy Conservation Code (IECC-based) statewide — replacement fenestration must meet the prescriptive U-factor.

Get the 2026 Chicago permit checklist

One page covering the forms, attachments and inspection sequence Chicago contractors get held up on.

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Filing checklist for Chicago

  • Verify whether the property sits inside Chicago city limits or in unincorporated Illinois — that determines which department accepts the application.
  • Bring current general liability and workers' compensation certificates.
  • Match declared valuation to the signed contract amount.
  • Confirm whether the scope triggers a separate electrical, mechanical or plumbing permit pulled by a licensed sub.
  • Schedule required inspections before covering any work.

Other Illinois metros

General guidance for Chicago contractors, not legal advice. Confirm requirements and fees with the authority having jurisdiction.