who was the architect in charge of it?
David Childs
One World Trade Center
The building's architect is David Childs, whose firm Skidmore, Owings & Merrill (SOM) also designed the Burj Khalifa and the Willis Tower.
when did the new world trade center open November 3, 2014 when did the construction of it begin? April 27, 2006 which company was involved in it? Skidmore, Owings & Merrill (SOM)
wiki:2428557
One World Trade Center [SEP] Introduction
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. 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.