One World Trade Center
Alternative names	1 WTC Freedom Tower (pre-2009)
Record height
Tallest in North America since 2013[I]
Preceded by	Willis Tower
General information
Status	Complete
Type	Office Observation Communication
Architectural style	Contemporary modern
Location	285 Fulton Street Manhattan, New York City, New York, U.S.
Coordinates	40°42′46.8″N 74°0′48.6″W / 40.713000°N 74.013500°W / 40.713000; -74.013500Coordinates: 40°42′46.8″N 74°0′48.6″W / 40.713000°N 74.013500°W / 40.713000; -74.013500
Construction started	April 27, 2006
Topped-out	May 10, 2013
Cost	US$3.9 billiona
Height
Roof	1,368 ft (417.0 m)
Top floor	1,268 ft (386.5 m)
Technical details
Floor count	94 (+5 below ground floors)
Floor area	3,501,274 sq ft (325,279 m2)
Elevators	73, made by ThyssenKrupp.
Design and construction
Main contractor	Tishman Construction
Architect	David Childsb Daniel Libeskind (2002)
Developer	Port Authority of New York and New Jersey
Structural engineer	WSP Cantor Seinuk
Other designers	Hill International, The Louis Berger Group
References
a. April 2012 estimate. b. Skidmore, Owings & Merrill.

One World Trade Center (also known as One WTC or Freedom Tower) is the main building of the new World Trade Center complex in Lower Manhattan, New York City. The building is 1,776 feet (541 m) tall making it the tallest building in the Western Hemisphere. Since late 2013, it is the tallest building in the United States. It opened in late 2014. It is mostly used for offices. People can view the city from an observatory near the top. The building was designed by David Childs of Skidmore, Owings & Merrill.