Well, it used to be a Banksy landmark, but no more:
http://news.bbc.co.uk/1/hi/england/london/8238896.stm
Bureaucracy at its worst...
---------- Post added at 10:07 ---------- Previous post was at 10:01 ----------
Not the first time it's happened either...
http://news.bbc.co.uk/1/hi/uk/6575345.stm