The 824-foot Mellon Bank Center at 1735 Market Street was completed in 1990. Originally, the tower had a similar design yet with a taller shape and several other differences. Designed by Kohn Pedersen Fox and developed by CommonWealth REIT, the tower would have stood 880 feet tall and would have featured projecting floor space at the corners up to an estimated height of 400 feet. The crown would have also appeared more skeletal than it looks today. Stone patterns all around the base are different.
The skyscraper was unveiled at the beginning of August 1986, angering many citizens with its “outrageous” height, just as the 945-foot-tall One Liberty Place had, which at the time was under construction and stood just under the tip of the 548-foot-tall William Penn statue atop the City Hall, located one block to the south and one block to the east.
One Liberty Place was originally proposed to rise 915 feet, but the tower had its spire extended 30 feet during the design process, possibly due possibly being overshadowed by the Mellon Bank Center. In 1987, new illustrations showed a redesign of the building, which would now stand 56 feet shorter and would rise 54 stories. The angled stone at the crown was changed to curved stone, giving the tower a distinctive character.
Below are YIMBY’s custom renderings of what the skyscraper would had looked like if it were built to thee originally planned height of 880 feet.