[1] The "sham castle" or folly is a Priority A site with the Heritage at Risk Register and has been a Grade II Listed structure since 1951 when it was in a ruinous state.
[1] In 2016, the property was purchased by a Spanish architect, Jaime (or Jimmy) Fernandez, and his English wife Mimi who had grown up near the castle.
[8][9] On 26 Jan 2017 planning permission was granted Fernandez by Aylesbury Vale District Council for the castle's renovation into a two-bedroom dwelling.
[12] The building was described as follows by Country Life (magazine) in February 2020:[8] Three quirky, octagonal floors rise from almost an acre of Waddesdon Estate countryside, which one can view in its fullest from the panoramic roof terrace.
The building houses a sitting room, two en-suite bedrooms and a welcoming kitchen on the ground floor.The renovation cost over £300,000, on top of the original £100,000 purchase price.