Kent Walthamstow Hall Walthamstow Hall is an independent day school for girls aged 3 to 18. Day Girls Pre-Prep Prep Senior 400 to 700 pupils Contact Details Hollybush Lane, Sevenoaks, Kent, TN13 3UL www.walthamstow-hall.co.uk More pre-prep and prep schools in Kent Kent College View more Kent schools. More senior schools in Kent Kent College Tonbridge School View more Kent schools.