One of the nicest things of this videos is that, after being outside British Grove and wondering how it would be inside, with the way this is recorded you can picture very well how it is from the door till the roof, lol, you can see them going throught the entrance, to studio 1, the stairs, the office up... the only thing you can't see here is Studio 2 and the kitchen, well, of course, the baths, LOL
I remember seeing a plan many years ago but this is more visual.