So it's still like that now, nothing changes. I was working in the area some thirteen years ago. At the time it looked like it was undergoing some massive redevelopment, pulling all the old really shitty 1960s concrete flat blocks down. Those things looked like what we often have here in China!
I spent a few months working in places round the North Circular. Basically from Hangar Lane around to Edmonton, including Wembley. There's plenty of bad places, but seemed to me that Stonebridge was especially notorious. And the fact we had specific safety warnings about that area.