City of London Freemen's School is a boys day school with similar fees (£26.5k vs £30.3k), overlapping entry phases including 11+ and 13+, and is within a reasonable 20km commute from Southwark.
Fees £5.8kA*-A 20%Rank #259
Al Risalah Boys' School is an independent boys day senior school in Wandsworth with selective entry, overlapping 11+ to 16+ phases, and close proximity (5km) to Dulwich Prep & Senior.
Fees £33.2kA*-A 74%Oxbridge 7%
Merchant Taylors' School is a boys day school with similar fees (£26.8k), overlapping entry phases including 11+ and 13+, and a selectivity tier comparable to Dulwich Prep & Senior, though it is further away (32km).
Tram House School is a boys day independent senior school in Wandsworth with overlapping entry phases (11–19), non-selective intake, and close proximity (7km) to the target school.
OMG Education is a boys day independent senior school in Tower Hamlets with overlapping entry phases (11–18), non-selective intake, and within a 10km commute, making it a plausible Plan B.
How peers are chosen
Matched on sex, boarding, entry phase, location, fee band, tier and outcomes. Scoring: 0.45 outcome similarity, 0.25 structured, 0.10 embedding, 0.20 AI re-rank. Refreshed yearly and when a profile changes.