Your room has been repurposed...
A section of the raised floor is walled off so the IT department can have a decent lab (everything is tested in the lab before going into production. Everything.). Comes time to move in and we find the room full of boxes. It appears that the designated storage room (on a slab, shares office aircon) was deemed too small, so they took over the next largest space. The lab was built in the former storage area. After some heat related equipment failures, they finally relented and installed aircon. And overhead wiring trays and power runs. Everything the new storage room has in fact!