Center City

Arthaus. Credit: Kohn Pedersen Fox

Steel Erection Continues Atop the Arthaus in Washington Square West, Center City

Since Arthaus at 311 South Broad Street in Center City topped its concrete structure, the pinnacle of the building has seen much construction activity as steel at the parapet continues to rise, nearing its final height of 542 feet. The 47-story tower is designed by Kohn Pedersen Fox, a firm behind well-known structures such as 30 Hudson Yards and One Vanderbilt in New York City, and the Mellon Bank Center at 1735 Market Street. The developer, Dranoff Properties, owns many properties around the city, such as Symphony House and a future residential building at 337 South Broad Street.

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Rendering of 204 South 12th Street. Credit: BLT Architects

Site Cleared at 204 South 12th Street in Washington Square West, Center City

Demolition work has been finished at 204 South 12th Street in Washington Square WestCenter City, and a recent site visit observed an uptick in activity after a period of pause. Designed by BLT Architects, the tower will rise 32 stories tall and make a meaningful impact on the Philadelphia skyline. The development will hold 448 residential units, occupying 340,253 square feet of space and bringing significant density to the property. The project will also include 39,999 square feet of retail space, creating a significant commercial presence on 12th Street, and 68 underground parking spaces in a 41,380-square-foot garage.

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Observing The Comcast Technology Center Shortly After Topping Out

Over the past 40 years, Center City has become home to multiple structures over the height of 500 feet. Philadelphia City Hall was the tallest structure in Philadelphia from 1894 to 1986 at 548, then in 1987 the steel structure of One-Liberty-Place eventually passed the statue to soon top out its spire at 945 feet. The same developers of Liberty Place also developed the next tallest skyscraper in the city, the 974-foot Comcast Center from 2007 to 2017. In 2017, across the street to the west, the Comcast Technology Center became the tallest skyscraper in the city since 2017 and its first supertall skyscraper at 1,121 feet. For this development, Comcast had partnered with Liberty Property Trust, which was originally known as Rouse and Associates. The tower was designed by Foster and Partners, which has designed iconic structures such as the Gherkin in London and the Hearst Tower in Midtown Manhattan. Today Philly YIMBY looks back at the period when the iconic tower’s spire topped out.

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Philadelphia 1945 and 2020 south elevation. Model and image by Thomas Koloski

Philadelphia YIMBY Compares Massing Renderings of the 1945 and the 2020 Skyline

In the mid-1940s, the Philadelphia skyline still maintained the general look it received during the construction boom of the 1920s and 1930, when several new towers added significant mass to the Center City skyline. The Philadelphia City Hall still topped the skyline at 548 feet tall, but by the 40s more high-rises were nearing the top of the clock tower, with several rising in the 300-foot range. A number of Art Deco buildings stood out, with predominantly light and dark brown shades. Today Philly YIMBY compares massing renderings of the 1945 skyline and the 2020 skyline.

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