If it's the same side of tbe building that was in Droneanon's pics posted and analyzed in bread #1 or #2 (can't member which rn), gotta kindly disagree.
There was a detailed pic showing the wall meeting the concrete outside walkway, and that seam looked filled with no gapping or clean lines that you would expect to find if there was a door. Iirc, there was even a little plant growing in a crack at one part of the seam.
Also, from looks of the workmanship on the roof and interior shot thru the front door, it's not James Bond quality shit.
Finally, why such an elaborately faked door/lift on one side when there's a big fat set of double doors on the other.
Sorry, it doesn't add up to me.