# Alteration or repair permit B200478450 at 645 N Michigan Ave, Chicago

Chicago Department of Buildings permit B200478450: issued Jul 27, 2026 for alteration or repair work at 645 N Michigan Ave. Scope: nonstructural interior alteration to electrical, plumbing and remove workstations/casework (no change of use). Locations: 0 residential unit(s), 1 non-residential unit(s), suite 550.

- Permit number: B200478450
- Issued: Jul 27, 2026
- Type of work: Alteration or repair (city: Nonstructural Interior Work, PERMIT – EXPRESS PERMIT PROGRAM)
- Status: Issued (city: Active)
- Reported cost: $60,000
- ZIP code: 60611 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/645-n-michigan-ave/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-03 04:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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