Site: CoreSite Chicago CH1

Company: CoreSite
Metro: Chicago: Downtown
Metro: Chicago
State: Illinois
Country: United States
Region: North America
Region: Americas
Region: World
Short Code: CH1
427 South LaSalle Street

Utility Provider: ComEd
Gross SqFt: 180,032
Usable SqFt: 129,790
Total Power: ??? NN
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Ownership: CoreSite owns the building.

CoreSite's CH1 site in downtown Chicago was acquired for $34 million in 2007 from Marc Realty. CoreSite has more than a decade upgrading the infrastructure one floor at a time. CoreSite has since finished renovating and filling the building with colocation customers and is planning their 2nd building in Chicago.


Once owned by the Western Union company, the building was formerly known as "The Telegraph Building."


The building is next to the Chicago Stock Exchange and relatively close to 350 E Cermak Carrier Hotel.

Map and Nearby Locations:

427 South LaSalle Street

SITES within 15 miles of CoreSite Chicago CH1

Show SqM

Distance Site name SqFt MW
0.00 miles Cogent: 427 S LaSalle 2,711 1
0.00 miles InfoRelay Chicago
0.00 miles 365 Chicago 21,748 1
0.02 miles QuadraNet Chicago
0.14 miles 600 S Federal - Digital Realty 161,000 9
0.14 miles Level3 Chicago (600 South Federal)
0.14 miles Colocation America CH2
0.14 miles Cogent: 600 S Federal 2,400 1
0.22 miles Netrality Chicago: 717 S Wells 100,000
0.22 miles GTT - 717 South Wells 20,000


List of companies deployed at the site

427 S LaSalle: 1st Floor Layout
427 S LaSalle: 5th Floor Layout
Source: CoreSite
427 S LaSalle: 6th Floor Layout
Source: CoreSite
Western Union Building with Chicago Board of Trade in the Background
CH1 Entrance to "The Telegraph Building"
Source: CoreSite

December 2018

PDF Data Sheet of CH1