# Alteration or repair permit 101030809 at 100 E Ontario St, Chicago

Chicago Department of Buildings permit 101030809: issued Nov 27, 2023 for alteration or repair work at 100 E Ontario St. 2019 CBC: Interior demo only. Removal of all existing interior non-loading bearing partitions / overbuilt floors, finishes, fixtures and MEP distribution on basement, 1st, mezzanine, and 2nd levels. No exterior or structural work. Exterior windows and doors will undergo no change and be protected during demolition.

- Permit number: 101030809
- Issued: Nov 27, 2023
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $500,000
- ZIP code: 60611 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/100-e-ontario-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-06 06:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 100 E Ontario St: https://nearbypermits.com/chicago/address/100-e-ontario-st/