More than 70 firefighters spent Saturday night battling to save part of historical Malvern College, in Worcester.
Crews were called out to deal with the blaze, which had taken hold at one of the school’s boarding houses.
Half of the building, which normally houses around 50 girls, was destroyed, including the roof. The building was empty for the Easter holidays. The fire is believed to have been largely restricted to the housemistress’ private accommodation in the house.