# New building permit 100362993 at 441 E Ontario St, Chicago

Chicago Department of Buildings permit 100362993: issued Sep 23, 2010 for new building work at 441 E Ontario St. Permit expires on 11/22/2010 erect (1) 40' x 120' canopy for the northwestern memorial hospital event on september 30, 2010. Install 9/28/10 and remove 9/30/10.

- Permit number: 100362993
- Issued: Sep 23, 2010
- Type of work: New building (city: Permit - new construction)
- Status: Finished (city: Complete)
- Reported cost: $4,000
- ZIP code: 60611 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/441-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 19:14 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 441 E Ontario St: https://nearbypermits.com/chicago/address/441-e-ontario-st/