The problem with our building is also its strength. Everything is so over engineered it's absolutely unreal. The entire thing is lined with a metal mesh to form a faraday cage (which is why I don't have mobile signal at work) The glass is so thick that if two people stand right next to each other but on different sides of the glass, one can't hear the other knocking on it, no matter how hard they knock. The building is so strong that we have an invacuation rather than an evacuation procedure. From entering the building to getting to our workshop, I walk through 14 doors, 8 of which are armoured, bomb proof units.
The plant is so over-specced it could probably run the buildings either side of ours too. The generators for example have the capacity to run the entire building, not just critical systems, down to the mirror lights in the toilets. These are fed by tanks large enough to sustain the building on diesel alone for 14 days. It's basically a fortress dressed as an office block.
This however is also the reason we have so many different systems all interfacing with each other, and all the head aches that go with it.
I guess this is what happens when a bank goes "build me a building, no expense spared" slap bang in the middle of the Troubles and right in the center of the square mile.
We had York chillers at BT HQ on Newgate street. Bloody things couldn't go a week without something failing (again as a result of penny pinching and getting mickey mouse firms to maintain them).