# Alteration or repair permit 101050287 at 100 E Ontario St, Chicago

Chicago Department of Buildings permit 101050287: issued Aug 13, 2024 for alteration or repair work at 100 E Ontario St. Interior renovation and rooftop addition to the existing 3-story building and upgrading the existing building from type IIIB to type IIA construction as per plans.

- Permit number: 101050287
- Issued: Aug 13, 2024
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $14,500,000
- 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 2026-10-05 15:40 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/