# Alteration or repair permit 100936869 at 142 E Ontario St, Chicago

Chicago Department of Buildings permit 100936869: issued Oct 22, 2021 for alteration or repair work at 142 E Ontario St. Self-cert 2019 CBRC: interior build-out on the 3rd and 15th floors. Work includes interior partitions, finishes, electrical, plumbing, and mechanical. No structural work to be performed. No change in use. Type 1-a construction.

- Permit number: 100936869
- Issued: Oct 22, 2021
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Expired (city: Expired)
- Reported cost: $1,572,439
- ZIP code: 60611 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/142-e-ontario-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-07 18:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 142 E Ontario St: https://nearbypermits.com/chicago/address/142-e-ontario-st/