Richard Meier & Partners in collaboration with Developer Sheldon Solow's East River Realty Development have collaborated on the design and construction of the new 685 First Avenue tower in New York City. The 42-storey, 460 ft high residential tower, Meier’s tallest in New York City, will rise just south of the United Nations Headquarters in Manhattan overlooking the East River. The 685 First Avenue site occupies a 32,365 sq ft parcel between East 39th and East 40th Streets along the West side of First Avenue. It will be home to 556 rental and condominium apartments and feature panoramic views of the river and the city.