Known by those of us who worked at Woodford as 'The Flying Club'. The hangars as you might imagine, are the original ones from the time when A V Roe moved into Woodford. The buildings on the right were eventually turned into accommodation and a small restaurant used for entertaining visitors.
I imagine they must be listed, but I am disappointed to see them in such poor condition. Given Woodford's current status as a development area, I suspect the developers can't wait for the buildings to fall down so that houses (or whatever) can be built on the site.
Not, perhaps, the answer you were looking for, and I'm sure someone will be along soon with a better answer, but I felt the need to respond.