510 Madison Avenue is a 30-story, exquisite office and retail building located on the west side of Madison Avenue and East 53rd street. 510 Madison Avenue was originally developed by Harry Macklowe, and designed by SLCE Architects and Moed de Armas & Shannon Architects. The building has many amenities, including 510 Fitness, a high end fitness center, available exclusively to the top executives of 510 Madison Tenants.