South West London The Mall School The Mall School is an independent day school for boys aged 4 to 11. Day Boys Pre-Prep Prep 100 to 200 pupils Contact Details 185 Hampton Road, Twickenham, The Mall School, TW2 5NQ www.themallschool.org.uk More pre-prep and prep schools in South West London Kew Green Preparatory School Lady Eleanor Holles School Staines Preparatory School View more South West London schools.