The first house recorded on the property goes back to the early medieval period and was called Hendre obaith, Home of the Old Faith.

[2] Lord Treowen, the ennobled descendant of the Joneses, died in 1933 and, his only son having predeceased him,[b] the court was inherited by his daughter, the Hon.

[2] The hospital is currently run by the Priory Group and caters for patients with mental illness or intellectual disabilities.

[8][9] The architectural historian John Newman describes the court as a "monster Neo-classical house",[4] consisting of a three-storey, double pile block of thirteen bays.

[4] The Monmouthshire author and artist Fred Hando, recording a visit to the court in the 1960s, noted the presence of two pictures by Tiepolo, The Healing at the Pool of Siloam and The Woman taken in Adultery.

[13] Developments after World War II significantly altered the landscape and many features have been lost, including the kitchen garden dating from the 19th century,[14] and the lake, which is now silted-up.