There's lots of chatter on Turkish Twitter streams and blogs about a new Banksy in Harringay. Apparently it's supposed to represent the "Erdogan clan running off with the money". So is it a Banksy or isn't it? I can't see it on his website.
Not to be pedantic, but it's a startlingly poor rendition of an electricity meter.
It does, however, seem to be a fantastically badly located and protected gas meter. Perhaps Emile could highlight its location to the council building control dept. so that they could get someone to go and have words with the landlord.