Skyline

Philadelphia skyline from South Street Bridge. Photo by The Philadelphia Inquirer

The Illustrated History of Philadelphia’s Skyscraper Boom of 1984-1991

The Philadelphia skyline is anchored by a group of particularly tall buildings, but just 40 years ago, not a single tower rose over 548 feet, the height of the City Hall tower that was completed in 1901. An informal “gentlemen’s agreement” held towers back from rising above the limit, but no developer was successful until One Commerce Square was approved in 1984, which was soon followed by a series of even taller skyscrapers. Philly YIMBY looks at the history behind these Center City buildings, which shaped a major portion of the Philadelphia skyline as we know it today.

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One Liberty Place from Cira Green. Photo by Thomas Koloski

Designing One Liberty Place, the Tower that Transformed Philadelphia’s Skyline

One Liberty Place at 1650 Market Street is an intricately designed skyscraper has dominated the skyline of Center City for over three decades. Designed by Murphy/Jahn and developed by Rouse and Associates, the tower is clad in a pattern of stone, metal, and glass that rises up to the angled crown and the thin spire. The tower first rose to its final 61-story height in the beginning of 1987, when the top floor was assembled beneath the future spire. Philly YIMBY looks back at the design process by architect Helmut Jahn via drawings from 1984, which show multiple design iterations.

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How One Liberty Place Revolutionized the Philadelphia Skyline

In August 1987, the 945-foot-tall One Liberty Place officially opened at 1650 Market Street as Philadelphia’s tallest skyscraper, soaring above the long-held unofficial height limit of 548 feet, set by the tower of City Hall in 1901. This remarkable skyscraper with a fantastical design ultimately led to the city gaining a new cluster of tall and massive skyscrapers that define the skyline to this day. In this feature, Philadelphia YIMBY explores the building’s progress from concept to reality, as well as its tenure as the city’s tallest skyscraper for 31 years.

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Checking In On Philadelphia’s 2020 Skyline

The city of Philadelphia has been booming recently with skyscrapers and buildings of all shapes and sizes. While most of the new buildings have been proposed and built in Center City, the skyline is extending in all directions. The skyline made its first significant leap across the Schuylkill River back in 2005 with the 437-foot, 29-story Cira Centre; now, the area boasts three towers over 400 feet all within a few blocks of one another. The district may soon add a new supertall at the site of Schuylkill Yards, as seen on SHOP Architects renderings from 2016 (though the tower has been excluded from recent renderings).

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