Is there also some other 4-level parking structure somewhere? The scribd documents don't zoom quite enough to actually read the text.

That big diagonal looking structure seen in the site plan is a 4 story car park, with 3 levels sunken below grade (depending on which side of the structure you are looking at).

There are an additional 2 levels of parking below the main building, and a few other auxiliary buildings, including a remote physical plant.