432 Park Avenue
|432 Park Avenue|
As seen from Rockefeller Center (July 2015)
|Location||432 Park Avenue
Manhattan, New York City
|Topped-out||10 October 2014|
|Completed||23 December 2015|
|Cost||US$ 1.25 billion|
|Architectural||1,396 ft (426 m)|
|Tip||1,396 ft (426 m)|
|Top floor||1,287 ft (392 m) (occupied)|
|Floor count||85 + 3 below ground|
|Floor area||412,637 square feet (38,335 m2)|
|Design and construction|
|Architect||Rafael Viñoly and SLCE Architects, LLP|
|Developer||CIM Group / Macklowe Properties|
|Structural engineer||WSP Cantor Seinuk|
|Main contractor||Lend Lease|
432 Park Avenue is a supertall residential skyscraper in Manhattan, New York City. Originally proposed to be 1,300 feet (396 meters) in 2011, the structure topped out at 1,396 ft (426 m). It was developed by CIM Group and features 104 condominium apartments. Construction began in 2012 and was completed on December 23, 2015. The building has been much maligned by many city residents who find it an eyesore and believe it represents New York's increasing cost of living and ostentatious wealth.
The building required the demolition of the 495-room Drake Hotel. Built in 1926, it was purchased for $440 million in 2006 by developer Harry Macklowe and razed the next year. Its footprint became one of New York's most valuable development sites due to its location, between East 56th and 57th Streets on the west side of Park Avenue.
As completed, 432 Park Avenue is the third tallest building in the United States, and the tallest residential building in the world. It is the second tallest building in New York City, behind One World Trade Center, and ahead of the Empire State Building. It is also the tallest building in the world known only by its street address, replacing Chicago's 311 South Wacker Drive.
432 Park Avenue is the second-tallest building in New York City. By mid-2018, 217 West 57th Street and 111 West 57th Street will be at a similar height. The tower has a footprint of approximately 33,000 square feet (3,100 m2). The building was officially topped out on October 10, 2014, making it the highest rooftop in the city.
Designed by architect Rafael Viñoly around what is described as "the purest geometric form: the square" and inspired by a trash can designed by Josef Hoffmann, the tower has eighty-four 8,255-square-foot (766.9 m2) stories, each with six 100-square-foot (9.3 m2) windows per face. Interiors are designed by Deborah Berke and the firm Bentel & Bentel, which also designed Eleven Madison Park and the Gramercy Tavern.
Apartments and amenities
The tower's condominium units feature high ceilings, and will range from a 351-square-foot (32.6 m2) studio to a six-bedroom, seven-bath penthouse with a library, already under agreement for $95 million. The building's amenities will include 12-foot (3.7 m) golf training facilities and private dining and screening rooms.
The first sale of apartment #35B, was reported in January 2016 for $18.116 million, over the $17.75 million asking price. Ten additional apartments were available at the time ranging from $17.4 to $44.25 million. #35B covers 4,000 sq. ft., one half of the 35th floor of the tower, and contains three bedrooms and four-and-a-half baths. Each face has six 10 ft. by 10 ft. windows, which for #35B, face south and west with views of Central Park.
The structure of the tower is composed of a 30 ft. square reinforced concrete core with 30 in. thick walls, that engineer, Silvian Marcus describes as: "like the backbone of a body." This core houses the elevator shafts and all the building mechanical services. The outer structural skin is composed of a grid of 3 ft. 8 in. wide columns and equal width spandrel beams of reinforced concrete that encloses the symmetrical "basket grid" of window openings. The columns begin at a depth of 5 ft. 4 in. at the bottom of the tower, to as little as 20 in. at the top. This layout permits all of the interior space on each floor to remain fully open for the complete 27 foot span between the core and shell.
The facade, with the formed surface left as the final finish without any added facia, was poured in place from concrete using 14,000 psi white Portland cement, and cast around preassembled full-floor cages of #20 rebars with articulated steel formwork. The floor-to-floor height of each of the 85 stories is 15 ft. 6 in. with 10 in. thick floor slabs, although to dampen the acceleration from wind loads, upper floors have slabs up to 18 in. thick to add more mass. Also aimed at reducing the potentially uncomfortable effects of swaying due to wind vortex loading on such a flexible tower, the window grid and interior space of 2 floors between every 12 occupied floors are left open to allow the wind to pass through. These floors also contain modularized mechanical services for the six floor above and below to reduce ductwork. In addition two tuned mass dampers are located at the top of the tower and in the outriggers of some of the mechanical floors to help damp the motion. 
- Tallest buildings in the United States
- Tallest buildings in New York City
- List of tallest residential buildings in the world
- 125 Greenwich Street
- 111 West 57th Street
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