US

Expert committee declares New York's new World Trade Center tower the tallest building in US

  • This combination made from file photos shows Willis Tower, formerly known as the Sears Tower, in Chicago on March 12, 2008, left, and One World Trade Center in New York on Sept. 5, 2013. Soaring above the city at 1,776 feet, 104-story One World Trade Center is in contention with Willis Tower for the title of America's tallest building. A committee of architects recognized as the arbiters on world building heights is meeting Friday Nov. 8, 2013 in Chicago to decide whether a design change affecting One World Trade Center's needle disqualifies its hundreds of feet from being counted, which would deny the building the title of nation’s tallest giving the title to the 110 story Willis Tower at 1,450 feet.  (AP Photo)

    This combination made from file photos shows Willis Tower, formerly known as the Sears Tower, in Chicago on March 12, 2008, left, and One World Trade Center in New York on Sept. 5, 2013. Soaring above the city at 1,776 feet, 104-story One World Trade Center is in contention with Willis Tower for the title of America's tallest building. A committee of architects recognized as the arbiters on world building heights is meeting Friday Nov. 8, 2013 in Chicago to decide whether a design change affecting One World Trade Center's needle disqualifies its hundreds of feet from being counted, which would deny the building the title of nation’s tallest giving the title to the 110 story Willis Tower at 1,450 feet. (AP Photo)  (The Associated Press)

  • A woman talking on a phone is seen through a window of a home in The Heights neighborhood of Jersey City, N.J., with One World Trade Center as a backdrop, Friday, Nov. 8, 2013. The Port Authority of New York and New Jersey, who tested the lights on Friday, said the beacon is packed with nearly 300 modules and their glow can be seen for up to 50 miles. The beacon and spire together stand 408 feet tall and bring the building, formerly called the Freedom Tower, to its symbolic height of 1,776 feet. The Durst Organization operates the spire, which will serve broadcasters. (AP Photo/Julio Cortez)

    A woman talking on a phone is seen through a window of a home in The Heights neighborhood of Jersey City, N.J., with One World Trade Center as a backdrop, Friday, Nov. 8, 2013. The Port Authority of New York and New Jersey, who tested the lights on Friday, said the beacon is packed with nearly 300 modules and their glow can be seen for up to 50 miles. The beacon and spire together stand 408 feet tall and bring the building, formerly called the Freedom Tower, to its symbolic height of 1,776 feet. The Durst Organization operates the spire, which will serve broadcasters. (AP Photo/Julio Cortez)  (The Associated Press)

  • FILE - This Nov. 7, 2013, photo shows a partial view of Chicago's 110 story, 1,450 foot Willis Tower. The Tower is in contention with the 104-story, 1,776 foot One World Trade Center, a skyscraper built at the site of the 9/11 attacks on the World Trade Center in New York as the tallest building in America. A committee of architects recognized as the arbiters on world building heights is meeting Friday Nov. 8, 2013 in Chicago to decide whether a design change affecting One World Trade Center's needle disqualifies its hundreds of feet from being counted, which would deny the building the title of nation’s tallest giving the title to Willis Tower. (AP Photo/M. Spencer Green)

    FILE - This Nov. 7, 2013, photo shows a partial view of Chicago's 110 story, 1,450 foot Willis Tower. The Tower is in contention with the 104-story, 1,776 foot One World Trade Center, a skyscraper built at the site of the 9/11 attacks on the World Trade Center in New York as the tallest building in America. A committee of architects recognized as the arbiters on world building heights is meeting Friday Nov. 8, 2013 in Chicago to decide whether a design change affecting One World Trade Center's needle disqualifies its hundreds of feet from being counted, which would deny the building the title of nation’s tallest giving the title to Willis Tower. (AP Photo/M. Spencer Green)  (The Associated Press)

An expert committee of architects declares that New York's new World Trade Center tower is now the tallest building in the U.S., surpassing Chicago's Willis Tower.

The Height Committee of the Council on Tall Buildings and Urban Habitat announced its decision Tuesday in Chicago.

The committee is widely recognized as the final arbiter of official building heights around the world. It has been studying whether a design change means the needle atop 1 World Trade Center is part of the actual building or merely the equivalent of a broadcast antenna.

The tower built on the site of the 9/11 attacks stands at a symbolically important 1,776 feet tall including the 408-foot needle. It officially would have been considered 1,368 feet tall without the needle.

Willis Tower is 1,451 feet tall.