what is "the judd school"?
It is a voluntary aided grammar school.
The Judd School
The Judd School (often known simply as Judd) is a voluntary aided grammar school in Tonbridge, Kent, England. 
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The Judd School [SEP] Introduction
The Judd School (often known simply as Judd) is a voluntary aided grammar school in Tonbridge, Kent, England. It was established in 1888 at Stafford House on East Street in Tonbridge, where it remained for eight years before moving to its present location on Brook Street, in the south of the town. Founded by the Skinners Company, it was named after 16th century merchant Sir Andrew Judde, whose endowment helped fund the school. The Skinners' Company maintains close links with the school and makes up the majority of the governing body. There are 1019 students in the school aged 11 to 18; the lower school is all boys, but of 350 students aged 16–18 in the sixth form, up to 60 are girls.