# Alteration or repair permit 101060827 at 151 E Wacker Dr, Chicago

Chicago Department of Buildings permit 101060827: issued Dec 2, 2024 for alteration or repair work at 151 E Wacker Dr. The scope of work includes the removal and replacement of one(1) generator, two (2) automatic transfer switches and the mechanical connections for the supply and exhaust system. Existing fuel systems and accessories to be reused to the fullest extent possible. The generator is located in the lower level of the west tower, while the automatic transfer switches are located in the lower level electrical rooms as well as the penthouse rooms. Fan removal and ductwork modifications will be required in the west tower generator room and adjacent storage room. New intake and exhaust louvers will be required. New intake wall penetration, louvers and ductwork shall be required for the tower to maintain distance separation from generator exhaust air. A new access door will be required to accommodate new ductwork. West tower generator will be replaced prior to the east tower generator (under separate permit). All downtime and cutovers shall occur after hours at a time agreed upon by the owner. CON.

- Permit number: 101060827
- Issued: Dec 2, 2024
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Other (city: Suspended)
- Reported cost: $869,394
- ZIP code: 60601 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/151-e-wacker-dr/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 16:58 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 151 E Wacker Dr: https://nearbypermits.com/chicago/address/151-e-wacker-dr/