If you're coming in from the apartments, as you approach the "T" intersection at the back of the science center, it will be on that corner at the left. Commuter parking lot is currently on the right. They'll be changing that intersection so it will curve smoothly off to the right rather than having to stop at a T...that's part of an effort to discourage vehicular traffic through the hearts of the campus, so less emphasis on vehicles heading left into Westhampton College roads.
And the admission building won't be alone...the new upperclass apartments are going in across the street and just south of there.