Hertfordshire Lyonsdown School Lyonsdown School is an independent day school for girls aged 3 to 11. Day Girls Pre-Prep Prep 100 to 200 pupils Contact Details 3 Richmond Road, New Barnet, Barnet, EN5 1SA www.lyonsdownschool.co.uk More pre-prep and prep schools in Hertfordshire Beechwood Park Bishop's Stortford College St Columba's College View more Hertfordshire schools.