Didn't Fairport have a regular gig in a pub there - just by the crossroads with Oxford Street, by Tottenham Court Road tube - before they got famous?

If you read Peter Ackroyd's "biography" of London you'll see that the area just to the east of that junction was once The Rookeries, one of the most notorious hellholes for the poor and the vagrant. It has a very interesting, if depressing, history.

Charlotte - Centrepoint still seems to be there in all its glorious ugliness, if Google maps is anything to go by. Proving that the place also has a very interesting, if depressing, present.

Don't know how precise this link is going to be, but if you have the stomach for it you can zoom in until you can count the roof-partitions:

http://maps.google.co.uk/maps?hl=en&tab=wl