It is possible that your co-worker, despite being very knowledgeable about such things, would have no clue. So, you might check on line, looking at the local governments building permits, and find nothing. You might check the local papers archives and find no mention of a new building in that area. It is entirely possible that the local television stations could tell you nothing about the mysterious, well lit building that is being completed so quickly.
Maybe you could drive by on your lunch break, but the fencing around the building may be so opaque, high and absolute that you could see nothing, and would still not know. No signs proudly proclaiming the ultimate occupant, no mention of the contractor, the architect or the principals of any kind, anywhere.
At this point you might be so intrigued, or frustrated, or both, that you would not be able to keep yourself from approaching the security guard with abnormally long arms, a head that seemed too large, and the slightly sickly, slightly shiny green tint, what was being built, and how it was being completed so quickly.
That would be a big mistake, trust me. There are things you just don't want to know, and this is one of them.