One57


One57, formerly known as Carnegie 57, is a 75-story, supertall skyscraper at 157 West 57th Street between Sixth and Seventh Avenues in the Midtown neighborhood of Manhattan, New York City. The building has 92 condominium units above a 210-room Park Hyatt Hotel that serves as the flagship Hyatt property. The tower was developed by Extell Development Company and designed by Christian de Portzamparc. It is the first ultra-luxury condominium tower along a stretch of 57th Street called Billionaires' Row.
One57 contains a facade made of panels in various shades of blue. The building has a curved roof and, on the side facing 57th Street, contains several setbacks that resemble waterfalls. One57's structural features include concrete floor slabs and two basement levels. The residential interiors contain furniture and materials by Thomas Juul-Hansen. The tower's design, particularly its facade and shape, was negatively critiqued upon its completion.
Extell CEO Gary Barnett started acquiring One57's site in 1998, although building plans were not filed until 2009. Construction started in 2010, and work reached the top floor by mid-2012. Toward the end of construction, there were two major incidents: a collapsed construction crane requiring the evacuation of nearby buildings, as well as a fire. Upon completion in 2014, it was the tallest residential building in the city for a few months until the completion of 432 Park Avenue. The building set the records for the city's most and second-most expensive residences, selling respectively for $100.5 million and $91.5 million. However, sale prices started dropping in the late 2010s due to a general decline in the city's luxury condominium market.

Site

One57 is in the Midtown neighborhood of Manhattan, New York City, just south of Central Park and between Sixth Avenue to the east and Seventh Avenue to the west. The building contains frontage along 57th Street to the south and 58th Street to the north. The irregular site covers, with the 57th and 58th Streets sides being slightly offset. The 57th Street frontage is wide, while the lot has a depth of between the two streets. The building is along 6½ Avenue, a pedestrian walkway running parallel to Sixth and Seventh Avenues. It is aligned roughly with the center axis of Central Park.
One57 is on the same city block as Alwyn Court, The Briarcliffe, and 165 West 57th Street to the west, as well as the Nippon Club, Calvary Baptist Church, 111 West 57th Street, and The Quin to the east. One57 is also near Carnegie Hall and Carnegie Hall Tower to the southwest; the Russian Tea Room and Metropolitan Tower to the south; 130 West 57th Street and 140 West 57th Street to the southeast; and JW Marriott Essex House and Hampshire House to the north. One57 is one of several major developments around 57th Street and Central Park that are collectively dubbed Billionaires' Row by the media. Other buildings along Billionaires' Row include 432 Park Avenue four blocks southeast, 220 Central Park South one block northwest, Central Park Tower one block west, and the nearby 111 West 57th Street.

Architecture

One57 was developed by Extell Development Company, which in turn was led by Gary Barnett. The building was designed by architect Christian de Portzamparc, while the interior design was by New York-based designer Thomas Juul-Hansen. The building has a roof height of and its top floor at. The certificate of occupancy issued by the New York City Department of Buildings lists the building as having 73 stories above ground level, with a height of. The top story is numbered as floor 90.

Form and facade

The facade uses various pieces of dark and light blue glass. These glass panes were arranged to create vertical stripes and were intended to absorb sunlight in various ways and maximize views. De Portzamparc likened the northern and southern facades to the work of Austrian painter Gustav Klimt, citing the artist's work as having inspired the design.
At ground level, One57 has an L-shaped floor plan extending both north to 58th Street and east along 57th Street. The building's massing, or shape, contains curved setbacks on 57th Street. The base of the building has undulating vertical glass strips around and above the entrances, which are also meant to symbolize a waterfall. The tower has rippled canopies and numerous setbacks on the 57th Street side. By contrast, the facade along 58th Street, facing Central Park, has a flatter profile without setbacks. A separate residential entrance also exists on the north facade at 58th Street. The curved roof of the building conceals a cooling tower and tapers in width to.
According to facade contractor Permasteelisa, the facade is made of 8,200 pieces in over 2,200 distinct shapes, covering. A slightly different figure of 8,400 figures is cited by television network PBS. Among the shapes that are used in the facade are curved panels, at the setbacks; curved corner panels, at the extreme ends of the setbacks; "peel-outs", consisting of adjacent curved and flat panels; and the undulating "teardrop" panels around the entrances. Most shapes are used infrequently, with the most common shape being used about 300 times. A window cleaning rig, measuring long and weighing, was constructed for the building. The window cleaning deck hangs from a retractable crane arm that is installed on the roof.

Structural features

One57's structural features include concrete shear walls and columns with a strength of over. This was meant to accommodate the interior uses, which include both a hotel on the lower floors and residential condominiums on the upper floors. The 12,000 psi strength concrete is used from the ground level to floor 26. The residential units are designed with a minimum ceiling height of or and a maximum height of. Structurally, the superstructure is made of concrete flat plates, with floor slabs between thick and columns up to apart at their centers. The building also contains two subterranean stories, as well as a foundation composed of spread footings on the Manhattan bedrock.
To stiffen the building, shear walls are placed around the utility core containing the elevators and stairs, and wing shear walls are also installed. In addition, there are three mechanical levels spread out across the building, surrounded by one-story concrete walls, which in turn are designed to resist lateral forces. Where the setbacks on the facade are present, there are girders to transfer the loads between columns. An additional set of girders to transfer loads is installed above the residential amenity area on floor 20. The top of the building is stabilized by four liquid tuned mass dampers. The dampers are meant to provide stability against high winds or earthquakes.

Interior

The interiors of One57 were made of material from around the world. Roy Kim, the senior vice president of design at Extell, traveled to Carrara in Italy to approve every piece of white marble used for the apartments' bathrooms, and he also traveled to China, Turkey, and South Korea to obtain materials. Some of the stone came from China; at one point, Kim reportedly asked one Chinese stone supplier to lay out all the stone on the ground of a warehouse so he could examine whether the stone could be used in One57. The marble collectively cost several million dollars; a single slab costing $130,000 was enough to create two benches and two bathtubs. The wooden furniture was from the English county of Wiltshire, where a company was contracted to hand-make 3,500 wooden cabinet doors as well as 135 kitchens in 18 layouts.
The building is accessed via a lobby with lacquered woods. The lobby contains of steel panels, which collectively cost $800,000; they had to be carried into the building through a narrow gap without being damaged.

Hotel

The lowest section of One57 contains the Park Hyatt New York, a 210-room hotel that serves as the flagship Hyatt property. The hotel occupies the lowest 18 physical stories of the tower, but publications cite the hotel as having 25 numbered floors.
There are 12 rooms each on the fourth and fifth stories, 16 each on the sixth through eleventh stories, 14 each on the twelfth through sixteenth stories, and 10 each on the seventeenth and eighteenth stories. When the Park Hyatt opened in 2014, the rooms were listed for at least $855 per night. Yabu Pushelberg was hired to design the hotel's interiors. The design includes 350 contemporary artworks spread across the hotel, as well as furnishings and fabrics, many of which were designed specifically for the Park Hyatt. The suites cover at least and have sitting areas with glass partitions. The hotel's "deluxe" suites contain at least of space. When the hotel opened, it provided 24/7 room service, which guests could request through iPads.
The Hyatt was designed with a ballroom, spa, swimming pool, fitness room, and conference rooms. The ballroom and meeting rooms are on the second story. The hotel's pool, on the 20th story, contains underwater speakers that play classical music from Carnegie Hall. The hotel's Spa Nalai, covering on the same floor, contains several treatment suites, some of which have balconies. The spa's name was derived from the word for "serenity" in the Munsee language, originally spoken by the Lenape Native American population of Manhattan. The hotel also originally included an American grill called the Back Room, which was led by chef Sebastien Archambault when it opened in August 2014. Also included is a bar called The Living Room. The Onyx Room, the hotel's event space, has backlit slabs of white onyx on the walls.

Condominiums

Above the hotel are 92 condominium units, of which 52 face Central Park directly. The condominiums are served by a bank of three elevators that travel and can run between the ground floor and the top story in 40 seconds. Extell had deemed the residential floor plans to be so crucial that the floor plans were created before de Portzamparc was officially hired as architect and before the exterior was designed. The apartment corridors have silk coverings on their walls, which contain asymmetrical doorways to each unit. The apartments were designed with relatively few bedrooms so the spaces could remain large. There are mechanical rooms on the physical 19th, 47th, and 73rd stories. The resident manager has their own two-bedroom apartment on the southwest corner of floor 34.
There are slightly different floor plans throughout the building. Floor numbers 22–23 have five units each, plus a duplex split between the two stories, while floors 24–30 have six units each. Floor numbers 31–41 each have three full units, in addition to another duplex split between floors 31 and 32. There are two apartments each on the 42nd through 44th stories and three apartments each on floors 45 and 46. Floors 48–57 each have two apartments, while floors 60–70 each have one unit occupying an entire floor. Floors 58–59 and 71–72 each have a single duplex unit. The penthouse on the two top floors contains six bedrooms and six bathrooms and covers.
Typical of the full-story units is the apartment on the 62nd story, designed with a salon overlooking Central Park, as well as a breakfast room, kitchen, private foyer, reception gallery, and ceilings. Two of the units have outdoor terraces and are branded as the "spring garden" and the "winter garden" residences. The spring garden apartment is on floor numbers 41–42 and has five bedrooms and a living room, in addition to an eastward-facing solarium. The winter garden apartment on floor numbers 75–76 is named for its glass atrium, which resembles a winter garden.
The building's original condominium owners were given a choice of materials for the interior finishes: for example, they could choose between rosewood or white oak for the floors. The apartments were furnished with Italian marble, wooden flooring, specialized lighting and hardware, and kitchen appliances made by Smallbone of Devizes. Some of the kitchen appliances, such as dishwashers and refrigerators, were built into the apartments. A typical apartment, such as the three-bedroom unit on floor 58, was decorated with a toilet room with white-onyx floors; and baths with different types of marbles. The bathrooms have bidets and toilets manufactured by Duravit, as well as in-room televisions. Some units have two juxtaposed toilet rooms within their master bedrooms, and several units have private swimming pools. Some residents further customized their units; for example, one condominium unit on floor 67 was redecorated with marble-slab floors, white-gold leaf walls, a white-oak paneled living room, and a vaulted dining-room ceiling. Another unit, 61B, was decorated with $2.5 million of furnishings designed by Jeffrey Beers International.