Brislington House was built as a private lunatic asylum. When it opened in 1806 it was one of the first purpose-built asylums in England. It is situated on the Bath Road in Brislington, Bristol, although parts of the grounds cross the city boundary into the parish of Keynsham in Bath and North East Somerset.The Palladian-fronted building was originally seven separate blocks into which patients were allocated depending on their class. The buildings, estate and therapeutic regime designed by Edward Long Fox were based on the principles of moral treatment that was fashionable at the time. Brislington House later influenced the design and construction of other asylums and influenced Acts of Parliament.The house and ancillary structures are listed buildings that have now been converted into private residences. The original grounds are Grade II* listed on the Register of Historic Parks and Gardens of special historic interest in England and now include St. Brendan's Sixth Form College, sports pitches and some farmland. They are now included on the Heritage at Risk register.