PHC was a co-educational independent day and boarding school for students aged 11 to 18 in Preston near Hitchin in Hertfordshire, England. The school was housed in a Queen Anne country house, formerly known as Temple Dinsley, which was redesigned by Edwin Lutyens, at the same time as the gardens were designed by his great friend, Gertrude Jekyll. The house is listed Grade II* on the National Heritage List for England, and the gardens and landscaped park are listed Grade II* on the Register of Historic Parks and Gardens.