PHILADELPHIA — Equity Commonwealth (NYSE: EQC) is under contract to sell BNY Mellon Bank Center, a 55-story, 1.3 million-square-foot office building located at 1735 Market St. in downtown Philadelphia. The price is $451.6 million. The buyer was undisclosed, though multiple media outlets report that a partnership between New York-based Silverstein Properties Inc. and Philadelphia-based Arden Group is acquiring the building. Proceeds after credits for capital costs, contractual lease costs, and rent abatements are expected to be approximately $435.6 million. The sale is slated to close by March 27. The asset is the fourth-largest building in Philadelphia. Amenities include The Lounge at 1735, a 19,000-square-foot space offering a 100-person classroom-style conference facility, fireplaces, wine lockers and TVs; Pyramid Club, a lounge on the 52nd floor offering a 360-degree view of Philadelphia, a bistro bar and a sit-down restaurant; the Philadelphia Sports Club, a 25,000-square-foot, two-story fitness center offering a sauna, rowing machine, group fitness classes, and massage therapy; and covered bike parking. BNY Mellon Bank Center was built in 1990 and designed by Kohn Pedersen Fox Associates. The building is situated less than a mile from Philadelphia City Hall and Logan Square, and less than two miles from the Liberty Bell. Chicago-based …
