# Alteration or repair permit 100769101 at 20 S Wacker Dr, Chicago

Chicago Department of Buildings permit 100769101: issued Aug 6, 2018 for alteration or repair work at 20 S Wacker Dr. Self-cert. Permit: interior alterations in existing office building for existing single office tenant cme group on floors 2s, 2n, 3s, 3n, 3box, 4box, 4n, 5s, 5n, 6n, 11s. 15S, 19s, and 20s as per plans. (No change in use).

- Permit number: 100769101
- Issued: Aug 6, 2018
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $10,000,000
- ZIP code: 60606 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/20-s-wacker-dr/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-08 00:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 20 S Wacker Dr: https://nearbypermits.com/chicago/address/20-s-wacker-dr/