American Commerce Center

The American Commerce Center was a proposed supertall skyscraper approved for construction in Philadelphia, Pennsylvania but cancelled due to the Great Recession. The Comcast Technology Center, the tallest skyscraper in both Philadelphia and Pennsylvania, now stands on the site. At 1,510 feet (460 m) tall with 63 floors, the building would have dominated the Philadelphia skyline, standing almost 400 ft (120 m) taller than Philadelphia's tallest building, the Comcast Technology Center. The office tower would have stood on the 19th Street side of Arch Street, and been connected to a 473 ft (144 m), 26-story hotel tower and public plaza along the 18th Street side of the block. The connection would have consisted of a multi-story skybridge with a garden on top. Of several supertall skyscrapers proposed for Philadelphia, including the Center City Tower and an early version of Comcast Center, this would have been the first to be constructed. The building would have been the tallest building in the United States by official height, or the second tallest by pinnacle height (including antennas) behind the Willis Tower at 1,729.8 feet (527 m) until the completion of 1,776-foot (541 m) One World Trade Center in New York City in 2014. On June 19, 2008, Philadelphia City Councilman Darrell Clarke introduced changes for the zoning legislation around 18th and Arch Streets which was the first

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).