Solomon Cordwell Buenz’ additions to the Aon Center in Chicago

The Aon Center, Chicago’s third-tallest tower, will undergo a $185M renovation for the purposes of boosting tourism. This development, by the New York based 601W, will involve the addition of two 1,K’ exterior elevators in glass, as well as the addition of a rooftop observation deck to the existing structure, of which both are designed by our friends at Solomon Cordwell Buenz. Notable features will include a “sky summit”—a glass-encased pod which will hang off of the edge of the roof—as well as a cantilevered entrance hall at the base of the tower, and an observatory on the top two floors. In preparation for the additions the building’s HVAC system has been removed from the roof and placed elsewhere; also, two-thirds of the exterior columns on the Aon Center’s roof will be removed to allow better views from the deck. 601W has estimated that these additions will attract 2M additional tourists per year.

Proposal for an addition to Chicago’s Union Station by Solomon Cordwell Buenz

On June 25th, our friends at Solomon Cordwell Buenz (SCB) held a public meeting during which were revealed their plans for a seven-storey glassy addition to the Union Station train station (1925) in the West Loop district of Chicago, a structure originally designed by Graham, Anderson, Probst & White. Developed by Riverside Investment & Development and Convexity Properties, the proposed addition will comprise a hotel, apartments, an office complex, and retail space; if accepted, it would cause an increase in the height of Union Station from 150 to 245′ with 404 apartments to be housed within a glassy rectangular volume on top of the original structure, which would, in turn, house 330 hotel rooms. In addition to submission for review by Chicago’s landmark preservation committee,—Union Station has been a Landmark since 2002—the first phase of the development will also require zoning approval and aldermanic (city council) approval. If that’s approved, the second phase will see the construction of an apartment tower above an existing train platform in the immediate proximity of the station.

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