Re: Geography is a bit screwed
As you rightly say Camputers was based on 2nd floor as 32A Bridge Street above SOS Villages and also took part of 33 across the road by the river next to Magdalene Bridge - the front of which which is now Galleria Italian restaurant.
GWDS was at 36-38 Hills Road in grotty rooms above a curry house which is now the Saffron Brasserie, and that remained the design base throughout.
Some of the software guys used a house so that they could work without disturbance - I think in the terraces of what was the Kite area off East Road.