# Alteration or repair permit 100268904 at 351 E 21st St, Chicago

Chicago Department of Buildings permit 100268904: issued Nov 24, 2008 for alteration or repair work at 351 E 21st St. Renovation of existing 8th floor infrastructure to supoort data center space (gens/fuel tank parallel gear) (conditional permit issued less the day tanks - doe permit to be issued separately).

- Permit number: 100268904
- Issued: Nov 24, 2008
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Expired (city: Expired)
- Reported cost: $6,000,000
- ZIP code: 60616 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/351-e-21st-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-07 04:00 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 351 E 21st St: https://nearbypermits.com/chicago/address/351-e-21st-st/