I haven't read the article, but are any of the parking floors underground? That side of the building has 2-3 levels of sub-basement. I went in there a couple of times, it is pretty cool.
Not totally sure, but maybe you can figure it out based on this:
"the potential project would turn nearly 400,000 square feet of space into a 450-space parking garage topped with 100,000 square feet of office space and street-level retail spaces.
...
The idea would be to use the top four floors of the building as office space.
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In addition, the lower levels of the building would be converted to additional parking space, as the buildings already have about 250 indoor parking spaces. About six floors of the building would become parking under this plan, but Chamot said there is flexibility based on the needs of a potential end user."