The house was built in 1572 on the former site of the Convent of the Little Sisters of Saint Gudula at Boscombe Moor. Earlier in the 16th century, Henry VIII had sealed the unhappy fate of the convent, headed by Cessair of Diplos posing as its Mother Superior, by conducting his "Dissolution of the Monasteries" campaign.
Mister De Vries lived there in the 1970s, and conducted ceremonies to the Cailleach there. When the Fourth Doctor investigated its history, he found that the earliest dated documents in the house were from 1700. (TV: The Stones of Blood)