529 Fifth Avenue

 office building, commercial building

259-foot, 19-story International-style office building completed in 1959. Designed by Emery Roth & Sons, it utilizes the steel skeleton of the previous 11-story building on the site, which was designed by Henry Ives Cobb in 1906. Above a 2-story grey granite base, the building is clad in curtain walls of aluminum and glass with black metal spandrels, framed by grey granite at the edges. The windows are spandrels are both square-shaped, creating a grid effect in the curtain wall.

The ground floor has stone, metal, and glass storefronts, and a main entrance at the east end of the north facade on 44th Street, with recessed glass doors. The entrance is topped by dark-grey, horizontal metal lovers divided by 20 narrow, vertical bars of illuminated metal screens. The 2nd floor, above the entrance, has a band of six windows with metal louvers across the top, while the rest of the 2nd floor on the north facade has large double-windows at each bay. Along the west facade the 2nd floor has a band of ten large, square windows, with a pair of projecting flagpoles mounted over the end windows.

There are setbacks on both facades above the 11th, 13th, 15th & 17th floors, and a mechanical penthouse at the east end of the roof. The ground floor is occupied by Best Buy.