Castle Fields, on Stowe Avenue in Buckingham, is a detached five-bedroom property that also features a staff flat, three additional houses, and several cottages. The estate, which is thought to date back to the Victorian era, is surrounded by 352 acres of land. Castle Fields also has equestrian facilities, including stables, grazing, and a manège. The Rightmove listing reads: "Castle Fields is an impressive unlisted period country house, believed to date back to Victorian times. To the west is a lawn tennis court with a stone pillar surround and an ornamental pond.