One57 in Late May 2014.
|Type||residential condominiums & hotel|
|Location||157 West 57th Street
Manhattan, New York City
|Construction started||April 2009|
|Estimated completion||Summer 2014|
|Roof||1,005 ft (306 m)|
|Design and construction|
|Architect||Christian de Portzamparc|
|Developer||Extell Development Company|
|Structural engineer||WSP Group|
One57, formerly known as Carnegie 57, is a 75-story (marketed as 90-story) skyscraper 157 West 57th Street in the Midtown neighborhood of Manhattan, New York City. Upon completion in 2014, it will stand at 1,005 feet (306 meters) tall, making it the tallest residential building in the city, however it is projected to be overtaken by 432 Park Avenue when that property is completed in 2015. The building will have 92 condominium units on top of a new Park Hyatt Hotel with 210 rooms.
Extell Development Company’s founder and President, Gary Barnett, spent 15 years assembling the property and air rights on 57th Street. At first, he said he wanted to build a 300,000 square-foot building, but plans for views of the park took shape as the assemblage got larger and markets started rising to new levels.
Foundation work started in January 2010.
In May 2012, it was announced a buyer had agreed to pay a record price in New York of more than $90 million for the 10,923-square-foot duplex penthouse on the 89th and 90th floors. After the sales offices had been open for six months, Extell announced One57 was 50% sold with $1 billion in transactions.
On June 20, 2012, it was announced that framework for the top floor had been completed. Shortly after, it was revealed the 13,550-square-foot “Winter Garden” duplex penthouse, located on the 75th and 76th floors, had gone into contract for an undisclosed amount.
Entrepreneur Michael Hirtenstein and Gary Barnett, the building's developer, had a public clash regarding a unit Hirtenstein agreed to purchase in the building. Hirtenstein claims he would not spend $16 million for a unit without seeing it, and that the view from the unit he purchased was obstructed. Barnett has been strict about not permitting buyers to view apartments prior to purchase, and as Hirtenstein paid a construction worker to show him his unit, Barnett refunded Hirtenstein's funds and canceled the contract.
On October 29, 2012, during Hurricane Sandy, the construction crane on the building partially collapsed, causing residents on either side of the building to be evacuated. By Monday, November 5, the crane was secured and traffic allowed. In response to the crane collapse, a class action lawsuit was filed by dentists in the surrounding area, complaining that the incident caused them to evacuate their offices, with subsequent loss of income.
The New York City Department of Buildings stated they had received multiple complaints about the work site. However, the crane was inspected a week earlier and considered in good shape. City officials called the failure of the boom a freakish occurrence.
In May 2013 Extell announced plans to hoist a new crane on May 10–11. The plans endorsed by the New York City Buildings Department involved a mandatory evacuation of the neighboring Alwyn Court as well as the Briarcliff Apartment Building during the process. The residents of the building would each receive up to $1,500. The coop board at Alwyn Court announced that it would seek a court order against the forced evacuation, saying the Department of Buildings appeared to be "an arm of the developer." The crane was hoisted on May 11 as planned after Extell and Alwyn signed an undisclosed agreement. Its tasks completed, the replacement crane was removed on November 11, 2013. 
The building currently holds multiple records. It is the tallest residential building in New York City. Multiple apartments at One57 are in contract to be purchased for over $90 million, which would be highest price paid for a single Manhattan residence.
Architecture and design
The use of dark and light glass on the building’s exterior creates vertical stripes, while also manipulating sunlight and maximizing views.
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- NYC Dept. of Buildings filing 
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- Kerry Burke; Greg B. Smith; Corky Siemaszko (October 29, 2012). "Crane collapse in midtown Manhattan as Hurricane Sandy storms into the East Coast". NY Daily News (New York). Retrieved October 29, 2012.
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- Katz, Basil. "Dentists sue over NY crane collapse during storm Sandy" Chicago Tribune (November 9, 2012)
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- Matt Chaban. "That’s It? A Look at the Tallest Apartment Building In New York that Doesn’t Look That Tall, One57". Observer. Retrieved May 24, 2013.
- "Buyers of $90 Million Penthouse at One57 Revealed | Manhattan Scout Blog". Manhattanscout.com. May 19, 2013. Retrieved May 24, 2013.
- Bradbury, Dominic (April 11, 2012). "Soaring ambition". How To Spend It. Retrieved June 19, 2013.
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