# Alteration or repair permit 100773155 at 230 W Monroe St, Chicago

Chicago Department of Buildings permit 100773155: issued Sep 6, 2018 for alteration or repair work at 230 W Monroe St. Mechanical systems upgrade to the 4th floor of an existing office building to install a new medium pressure loop for the HVAC system, new ductwork, hot water booster coils, and return piping. No change in use.

- Permit number: 100773155
- Issued: Sep 6, 2018
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $50,000
- ZIP code: 60606 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/230-w-monroe-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 15:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 230 W Monroe St: https://nearbypermits.com/chicago/address/230-w-monroe-st/