Viscount House and Viscount House annex also used you house part of Engineering training and I went through a number of courses there in the 1980s and 1990s. The whole lot was flattened along with
TBD to make way for all the parking stands on that side of the base.
TBD was quite a challenge, as anyone who worked there would tell you, it wasn't just a hangar complex but a whole
labyrinth of passageways, stores areas, changing rooms etc all below floor level, in fact when you first entered from the landside/car park you immediately went down a few flights of stairs to be able to be able to go to any of the hangar bays, which you then had to access by climbing up stairs to get to the ground floor level.
Getting back to Viscount House annex, the Paternoster used to have signs on the top floor landing used to have signs to get off on the top floor and not to ride it "over the top" something to do with overloading I seem to remember. The favourite trick of of some Engineering staff was to ride it over the top and do a handstand so it looked as if they had been flipped upside down by going all the way over the top..