What to do with all those ugly (usually) concrete buildings of the 1960s and 70s? “Demolition is cathartic and the idea of a blank piece of paper seductive. But though developers can make a profit tearing down 1960s office buildings, elsewhere comprehensive redevelopment has proved hellishly expensive. That sort of money is never going to be available for the arts, though,” so how to make arts buildings of that period work?