A survey I had sight of a couple of years ago showed that Alleyn's pupils came overwhelmingly from local postcodes (SE21, 22, 24, 5). SE22 was second only to SE21. Significant minorities came from Blackheath, Balham, Clapham, Battersea, Beckenham and Wandsworth. I would be surprised if things have changed around that much in a couple of years. Certainly, it seems likely that SE22 people would stick with their excellent primary schools till 11. Of the 125 places the school offers at 11, 40 will be filled by its Junior School pretty well automatically. So it is around 600 applicants going for the remaining 85 places. A number of those will be applying from private juniors and preps. Apparently, before their Junior School opened in 1992, 85% of Alleyns intake was from state primaries.