While most office towers average 12' to 13 feet per floor, some older ones were built at around 11 feet per floor. This would still allow for 8 foot floor to ceiling vertical clearance. The windows go up to the 35th floor & there is the equivalent of 2 service floors above that. This bulky building is easy to spot in several old & new pictures. Thus, its easy to see where the original location choice was going to be for the WTC.
It could have been built & destroyed on either side of Lower_Manhattan.
The original choice for the WTC site was for it to be on the East River side & was to feature 2 big slabs.
These 2 slabs would have been on either side of 120-wall-street.
The south slab was to be a tall & wide office tower. The north slab would appear like a tower that's laying down on its side. Curiously, the slab on its side would have featured 2 big squares.
When the WTC site was finally chosen to be on the Hudson River side, the 2 big squares were omitted from the design. The 2 wide slabs became the two iconic tall & slender towers. However, in the years after the destruction of the WTC, the 2 big squares were eventually worked back into the overall site rebuilding plan.
