One World Trade Centre, Lower Manhattan, New York City, New York, United States

As of April 2014, the exterior elevator shaft was being removed, podium glass was being installed, interior decorating and finishings were being installed, and installation of concrete flooring and steel fittings was complete. The building opened on November 3, 2014, with 2,300 employees of its first tenant, magazine publisher Conde Nast, moving into spaces spread among 24 floors.
• Estimated cost and funding
A February 2007 estimate put the initial construction cost of One World Trade Center at about US$3 billion, or $1,150 per square foot ($12,380 per square meter). However, by April 2012 the tower's total estimated cost had risen to $3.9 billion, making it the most expensive single building in the world at the time. The tower's construction was partly funded with approximately $1 billion of insurance money recouped by Silverstein in connection with the September 11 attacks. The State of New York provided $250 million toward construction costs, and the Port Authority agreed to finance a further $1 billion through the sale of bonds. A series of bridge and tunnel toll hikes were also implemented by the Port Authority to raise funds, with a 56 percent toll increase scheduled between 2011 and 2015; however, the proceeds of these toll hikes were not ultimately used to pay for the tower's construction.