23 Beekman Place  23 Beekman Place is the address of an apartment building located between East 50th and 51st Streets in the Turtle Bay neighborhood at the far east side of Midtown Manhattan, New York City. The building was re-designed by Paul Rudolph, an American architect and one-time dean of Yale University. It is one of the last of his projects still standing in the city. The architectural features of its four-level penthouse include a slender steel skeletal structure and a stepped succession of concrete panels, cantilevering over an existing older brownstone, large walls of glass with panoramic East River views, high ceilings, and open floor plans. The facades date to different time periods, but the cement on both of the facades is intended to coordinate upper and lower halves of the building. Rudolph was commissioned for the project, which later became his personal residency, and continued to work on the building until his death. Rudolph received negative feedback from residents of 23 Beekman Place—mainly from neighboring buildings, who did not want attention drawn to the area—which did not deter him from designing and building the addition, completed in 1982. Following the death of Rudolph and sale of the building by his estate, the building was altered to reconfigure the layout. The property was sold again and alterations continued that, again, were controversial, this time, because the architects changed some of the materials and the essential and unique traits of the home. In 2010, the building was designated as a New York City Landmark.  23 Beekman Place references a property that is located between 50th and 51st Streets on the east side of the street. The building on the property is approximately twenty feet wide and is sectioned into two distinct parts: the original five-story masonry structure and the addition of a four-story penthouse cantilevering over the front and back of the building. The two sections are very distinct from one another; the image is of a modern black hat paired with a traditional white suit. The styles of construction are different and invoke extremes, a white and black building separated at the waist. Paul Marvin Rudolph began his relationship with the property at 23 Beekman Place in 1961, when he leased the fourth-floor apartment. In 1965, he claimed the apartment as his permanent residence. In October 1976, Rudolph bought the building at 23 Beekman Place for $300,000 and began converting it from four to five apartments, by adding the modernist multi-dimensional penthouse.