American Commerce Center

Philadelphia skyline with unbuilt proposals looking northeast. Image and models by Thomas Koloski

Philadelphia YIMBY Presents Updated Massings Of The Unbuilt Philadelphia Skyline

8:00 am on August 10, 2021 By Thomas Koloski

In March, YIMBY shared exclusive renderings of the Philadelphia skyline featuring several unbuilt skyscrapers that would have made the city appear quite different from its current look. The conceptual massing shows the possibilities that never happened, though they remain archived by the original architects and now also by our publications. Numerous projects have been canceled in the city over the years, including the American Commerce Center, a tower once proposed in Center City that would have stood taller than the Comcast Technology Center. Today we present updated massing renderings of the Philadelphia skyline with many projects that remain unbuilt.

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American Commerce Center rendering via Kohn Pendersen Fox

The Story of the American Commerce Center, Once Planned as Philadelphia’s Tallest Tower

8:00 am on February 10, 2021 By Thomas Koloski

During the construction of the first Comcast Center tower, many wondered whether the 975-foot-tall skyscraper would rank as the city’s tallest for much longer. Just a few months before the former’s topping out, details were released about the American Commerce Center at 1800 Arch Street, a proposal that stunned many development watchers with its 1,510-foot height. The project was being developed by Hill International Real Estate Partners and designed by Kohn Pendersen Fox, a firm that is also behind the 792-foot-tall Mellon Bank Center, currently the city’s fifth-tallest building, and Arthaus, a 542-foot-tall skyscraper currently under construction. The development was ultimately canceled and the 1,121-foot-tall Comcast Technology Center was built at the site.

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