Having now been to Glasgow - and what a jewel of a city it turned out to be and I am so going back there for a better look later on this year! - I have now confirmed what I had originally planned. The 'odd little man in an office' will remain just a cover to distract potential troublemakers and the real Torchwood Two will be situated under the Glasgow Necropolis. I mean, just look at the place!
and
I spent a wonderful hour scampering around the graves - yes, I know I'm strange - and managed to work out just where the entrances were. And now I've been there, it's much more likely that I'll be able to write the stories based in Glasgow.