# Alteration or repair permit 101087757 at 11421 S Princeton Ave, Chicago

Chicago Department of Buildings permit 101087757, issued Sep 17, 2026 for 11421 S Princeton Ave: alteration or repair. Self cert 2019 CBC: interior alterations to existing SFR w/ basement/ new second floor addition/ new rear deck and new frame garage

- Permit number: 101087757
- Issued: Sep 17, 2026
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Issued (city: Active)
- Reported cost: $150,000
- ZIP code: 60628 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/11421-s-princeton-ave/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-01 15:45 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/