`  :Sorry SilasW, I am not sure what you are referring to with UC in this particular context ``area around Croydon``. Am I missing something or am I being particularly obtuse? As for drawing the line between Croydon and the next LB to the NW, it is the London Borough of Merton which includes the UK Parliamentary Constituency of Mitcham and Morden, as well as Wimbledon, Raynes Park and Colliers Wood.  :As for the Norwoods, both South Norwood and Upper Norwood are in Croydon, but West Norwood belongs to the LB of Lambeth. Does that help?   `