731, Lexington Ave (Repeat)

Project Owner/Client : Vornado Realty Trust
Client : Testwell Labs Inc, USA
Architects : Schuman Lichtenstein Claman Efron Architects, Cesar Pelli & Assoc. Inc

731 Lexington is a 53-story, 1.4 million sf, mixed-use building containing retail space on the lower floors and 900,000 sf of commercial space up to the 28th floor, including the space occupied by Bloomberg. The 30th – 53rd floors contain 105 high-end residential condominiums. This project was constructed on the old Alexander’s Department store site, and was one of the last square blocks remaining in New York City. The midtown construction site was bordered by two busy avenues, Lexington and Third, as well as 58th and 59th Streets which are both approach streets to the outbound 59th Street Bridge. Based on this location, lane closures were very difficult, so the logistic plan was developed by staging the delivery of steel and other construction materials inside the property line whenever possible. The retail and commercial portions of this mixed-use building were constructed with structural steel with concrete on metal deck. The residential portion of the building is reinforced concrete. The curtain wall system is glass and aluminum.