Harrow School divides its boarders into eleven houses, each of about seventy boys. Each house has its own facilities and customs, and each competes in sporting events against the others.
House Masters and their families live in the boarding houses and are assisted by House Tutors appointed from the teaching staff. Every House has a residential House Tutor. The House Master oversees the welfare of every boy in his care; for parents he is the main point of contact with the School.
Each House has a resident Matron and sick room. The Matrons are supported by the School's Medical Centre where trained nursing staff offer round the clock care. The Medical Centre is under the direct supervision of the School Doctor who is available on the Hill every day for consultation.
There are no dormitories: a boy shares his room with a boy of the same age for the first three to six terms and thereafter has a room to himself. It is very much his own place, his home for the term, where he keeps his belongings, puts up his pictures, does his work and leads much of his social life. Each House has a Common Room with newspapers, television and video. All have their own gardens and sports facilities.
After reading all this … it will be no suprise that this school was used as the film location in 'Harry Potter And The Philosophers Stone'.