space was occupied by such tenants as the New York Sports Club, the Apple Bank for Savings, and the Raymour & Flanigan furniture store. Few alterations have been made to the facade since the 1920s expansions. In 1965–1966 the facade was repainted and given an acrylic emulsion. Other changes included reconfiguration of the 15th Street facade in 1954, as well as various component replacements and installations. The light bulbs on the tower's clock were replaced in 1994, the tower and facade were repaired from 1997 to 2001, and the light bulbs on the facade were replaced in 2008. In 2010, it was officially designated a city landmark by the New York City Landmarks Preservation Commission. Architecture The building is officially located at 4 Irving Place, though the building also takes up the lots between 2 and 10 Irving Place. The height of the roof is while the height to the tip of the lantern is . For the structure, the architects worked out a limestone form with its corners clad in mock quoining. Courses of stone were raised to create a column of protruding blocks. Hardenbergh structure The initial structure by Hardenbergh was one of the architect's last designs. The original plans called for a 12-story building with a facade made of limestone. In the original plans, the lowest three levels were to contain storefronts, with double-height segmental arches along the facade of the ground and second floors. On the middle seven levels, the windows were to be recessed into architectural bays, with each bay containing three windows on each floor. The top two levels were to contain windows that were recessed into the facade, separated by colonettes in the Ionic order, as well as decorated spandrels within the windows. Hardenbergh's original plan called for the main entrance to be on 15th Street, but when the expanded building design was implemented, the main entrance was moved to Irving Place while the secondary entrance was moved to 15th Street. The Irving Place entrance was given a recessed portico supported by Ionic columns, while the 15th Street entrance was simpler in design. The original 12 stories remained mostly the same, but the 13th story of the building was distinguished by a "transitional" design with small cornices below and above that floor. The 14th through 17th floors contained piers between each recessed bay, which were supported by Ionic pilasters, while a projecting cornice