Chicago Building Permit Search Guide
Search building permits, inspection results, violations, and construction filings for properties in Chicago using official City of Chicago Department of Buildings tools.
Official Chicago Permit Research Tools
These are the main government systems used to research building permits and construction activity in Chicago.
These databases allow residents and property buyers to search building permits, inspection reports, and code violations by address or permit number.
How to Search Chicago Building Permits by Address
- Open the Chicago permit portal.
- Enter the property street address.
- Select the permit records section.
- View permit numbers and project descriptions.
- Open the permit record to see inspection history.
Permit records typically include contractor information, permit issuance date, inspection results, and project description.
Advanced Tip: Search Using PIN (Property Index Number)
Some Chicago permit records are linked to a **Cook County Property Index Number (PIN)** rather than the street address.
Steps
- Find the PIN using Cook County Assessor property search.
- Enter the PIN in the permit portal search field.
- View permits associated with that property.
Chicago Permit Status Codes Explained
| Status | Meaning |
|---|---|
| Issued | Permit approved and construction may begin. |
| Pending | Permit application still under review. |
| Closed | Project completed and inspections passed. |
| Expired | Permit expired before completion. |
How to Check Chicago Building Violations
Building code violations can reveal unsafe construction or illegal building work.
- Open the Chicago violations search portal.
- Enter the property address.
- Review open violations and inspection reports.
Violations may include structural hazards, unsafe conditions, or construction without permits.
Real Estate Due-Diligence Checklist
Before purchasing property in Chicago, verify the following:
- Building permit history
- Open permits
- Code violations
- Inspection results
- Permit expiration dates
Chicago Department of Buildings
121 N LaSalle Street Chicago, IL 60602 Phone: 312-744-3449
Local Permit Insights for Chicago Property Owners
- Most construction projects require a permit from the Chicago Department of Buildings.
- Small repairs may qualify for the Express Permit program.
- Architect or engineer plans are required for larger projects.
- Inspections must be completed before permits can be closed.
Frequently Asked Questions
How do I search Chicago building permits?
Use the Chicago permit portal and search by property address or permit number.
How do I check permit inspection results?
Inspection results can be viewed within the permit record in the Chicago Department of Buildings database.
Can open permits affect property sales?
Yes. Open permits or violations may delay real estate transactions until they are resolved.