Expansion of existing chiller plant in support of existing data center equipment expansion in basement
Alteration or repair at 351 E 21st St, Chicago
Chicago Department of Buildings permit 100243274: issued Sep 26, 2008 for alteration or repair work at 351 E 21st St. Expansion of existing chiller plant in support of existing data center equipment expansion in basement, on 9th fl., and rooftop.
- Permit number
- 100243274
- Issued
- Type of work
- Alteration or repair
- Status
- Finished
- Reported cost
- $11,000,000
- ZIP code
- 60616 (from the permit's location)
- City's category
- Permit - renovation/alteration
- City's status
- Complete
- Source
- Chicago Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 351 E 21st St, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 3, 2026. We checked it Oct 5, 15:33 UTC. Official data.
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