The whole series was set in Norwich so i am assuming it's highly likely to have been there. BTW does anyone know if Linton Travel Tavern actually exists? (and if so is it called this?)
The real Linton Travel Tavern is the Watford Hilton (exterior only) - interior was at BBC studios!
The club in the 2nd series was called Choristers but I do not know where it was filmed.