Brighton College is house based. There are 15 houses which are split by gender (with the exception of Alexander House). Staff of both sexes can be attached to any house. Houses contain between 48 and 85 pupils and are supervised by a house master or house mistress (HMM) and a team of personal tutors. Boarding houses also have a matron and house keeping staff. The HMM appoints Upper Sixth Formers (Year 13) as house prefects to look after and mentor younger members, and one as head pupil to represent their house at house events and competitions. In September 2017, Brighton College's 14th house was opened, Alexander House. This was the first mixed-gender house in the college and is only for the Upper Sixth formers, who decide during their Lower Sixth year if they wish to move into this house, with all members coming from other boarding houses. In their final year, roughly half of boarders choose to enter the house. For years 7–8 there is a single house, Lower School, for those aged 11, 12, and 13 years old who took the 11+ test. This house does not have boarding and is for both boys and girls.. List of houses Awards England's Independent School of the Year 2012 – The Sunday Times England's Independent School of the Year 2019 – The Sunday Times England's Independent Secondary School of the Decade 2010–2020 – The Sunday Times England's Public School Headmaster of the Year 2012 by Tatler magazine. Site and buildings Brighton College is located in Brighton's Kemptown area, in the east of the city. The school occupies three sites, facing south onto Eastern Road. It is immediately to the east of the site of the former Kemptown railway station, across Sutherland Road. Its principal buildings are in the gothic revival style by Sir George Gilbert Scott RA (flint with Caen stone dressings, 1848–66). Later buildings were designed by his pupil and former student at the college Sir Thomas Graham Jackson RA (brick and flint with cream and pink terracotta dressings, 1883–87; flint with Clipsham stone dressings 1922–23). George Bell, Bishop of Chichester created the school grounds as an extra-parochial ecclesiastical district. Placed outside the parish of St. Matthew's, Brighton, the school chapel holds an episcopal licence to perform weddings. Under the stewardship of Head Master Richard Cairns, the school has added a series of buildings to the college campus: 2008: the