"Next thing you know, we got the designs of the building. And the first design meeting was in April 2000." ~ Larry "The Snake" Silverstein, speech discussing planning and construction for the new, as yet, unbuilt WTC7.
"And construction began shortly thereafter in 2002." ~ Larry "Snake-Eyes" Silverstein, the very next sentence out of his slithering snake-hole.
How long does it take to create plans for a 52 story, Mil.7 sqft, building? Asking for a friend.