One World Trade Center

One World Trade Center (also known as One World Trade, One WTC, and formerly Freedom Tower)[note 1] is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. One WTC is the tallest building in the United States, the tallest building in the Western Hemisphere, and the sixth-tallest in the world. The supertall structure has the same name as the North Tower of the original World Trade Center, which was destroyed in the terrorist attacks of September 11, 2001. The new skyscraper stands on the northwest corner of the 16-acre (6.5 ha) World Trade Center site, on the site of the original 6 World Trade Center. The building is bounded by West Street to the west, Vesey Street to the north, Fulton Street to the south, and Washington Street to the east.

One World Trade Center
One World Trade Center in 2017
Alternative names
  • 1 WTC
  • Freedom Tower (pre-2009)[1]
Record height
Tallest in North America and the Western Hemisphere since 2013[I]
Preceded byWillis Tower
General information
  • Office
  • Observation
  • Communication
Architectural styleContemporary modern
Location285 Fulton Street
Manhattan, New York City, U.S.
Coordinates40°42′47″N 74°00′48″W
Construction startedApril 27, 2006; 15 years ago (2006-04-27)
Topped-outMay 10, 2013; 8 years ago (2013-05-10)[2]
OpenedNovember 3, 2014; 6 years ago (2014-11-03)[3][4]
May 29, 2015; 6 years ago (2015-05-29) (One World Observatory)[5]
CostUS$3.9 billiona[6][7]
Architectural1,776 ft (541.3 m)[8][9]
Tip1,792 ft (546.2 m)[8]
Roof1,368 ft (417.0 m)[10]
Top floor1,268 ft (386.5 m)[8]
Observatory1,268 ft (386.5 m)[8]
Technical details
Floor count94 (+5 below ground) (28 Mechanical) [8][11]
Floor area3,501,274 sq ft (325,279 m2)[8]
Lifts/elevators73,[8] made by ThyssenKrupp[12]
Design and construction
DeveloperPort Authority of New York and New Jersey[8]
Structural engineerWSP Cantor Seinuk
Other designersHill International, The Louis Berger Group[14]
Main contractorTishman Construction
a. April 2012 estimate.
b. Skidmore, Owings & Merrill.

The building's architect is David Childs, whose firm Skidmore, Owings & Merrill (SOM) also designed the Burj Khalifa and the Willis Tower. The construction of below-ground utility relocations, footings, and foundations for the new building began on April 27, 2006. One World Trade Center became the tallest structure in New York City on April 30, 2012, when it surpassed the height of the Empire State Building. The tower's steel structure was topped out on August 30, 2012. On May 10, 2013, the final component of the skyscraper's spire was installed, making the building, including its spire, reach a total height of 1,776 feet (541 m). Its height in feet is a deliberate reference to the year when the United States Declaration of Independence was signed. The building opened on November 3, 2014;[4] the One World Observatory opened on May 29, 2015.[5]

On March 26, 2009, the Port Authority of New York and New Jersey (PANYNJ) confirmed that the building would be officially known by its legal name of "One World Trade Center", rather than its colloquial name of "Freedom Tower".[16][17][18] The building has 94 stories, with the top floor numbered 104.

The new World Trade Center complex will eventually include five high-rise office buildings built along Greenwich Street, as well as the National September 11 Memorial & Museum, located just south of One World Trade Center where the original Twin Towers stood. The construction of the new building is part of an effort to memorialize and rebuild following the destruction of the original World Trade Center complex.