 The school continued to use the former guildhall site in Hill Street until 1898 , by which stage the medieval building was much altered and in a dilapidated condition . At this point , the school moved to an 18th @-@ century house on South Brink . A fundraising campaign was launched to pay for the house , but after insufficient funds were donated , the cost of purchase was met by Alexander , Baron Peckover . The house and its grounds was originally intended to be the headmaster 's residence and provide lodgings for a few boarders , but soon expanded to accommodate the entire school with the construction of classrooms and a hall . The central block of the 18th @-@ century town house was used as a panelled library . An unusual feature of the old town house is the cupola on the roof , evidence of the town 's sea @-@ based prosperity . 
