A massive hulk of a building that manages to not feel imposing in spite of its girth. The Citigroup Center combines reflective glass with setbacks to maximize office space while remaining pedestrian-friendly. In essence, this building is actually a group of three traditional Art Deco towers attached shoulder-to-shoulder and clad in blue glass. The massing of a shaft on top of a podium with additional setbacks at the top is a method used for a hundred years to make sure that light reaches street level. By covering this building in reflective blue glass it maximizes the amount of light it shares and also helps blend into the sky to reduce its visual footprint. Though some believe the shape of the building is reminiscent of a cash register to represent its largest tenant, it is actually intended to look like a waterfall to help link it to the nearby Chicago River. Part of the reason for the spread at the bottom of the building is to incorporate a shopping mall and the Ogilvie Transportation Center, a busy suburban commuter railroad station.
Construction start: 1979
Construction finish: 1987
Designed by: Murphy/Jahn Architects
Maximum Height: 588 feet / 179 meters
Floor space: 1,460,000 square feet
Retail space: 83,000 square feet
Atrium height: 80 feet.
April, 1987: The commuter rail concourse portion of this project opened to the public.
December 8, 2007: Inventor Joe Jackson snapped and began shooting up a law office on the 38th floor of this building. Three people were killed and one wounded before police managed to kill the gunman.
October, 2013: This building was sold to KBS Realty Advisors for $435 million.
(Credit; Chicago Architecture)
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Scanned : Photogrammetry (Processed using Agisoft PhotoScan)