# Alteration or repair permit 100479239 at 20 S Wacker Dr, Chicago

Chicago Department of Buildings permit 100479239: issued Apr 8, 2013 for alteration or repair work at 20 S Wacker Dr. Self-certification permit for renovations to existing office space on the 5th floor north tower for 10,500 sf per plans. *Conditional permit subject to field inspections.

- Permit number: 100479239
- Issued: Apr 8, 2013
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $621,500
- 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 2026-10-07 23:49 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/