Dudley House, London

Hammerson, a British property development and investment company, converted the house into offices, to designs by architects Sir Basil Spence and Anthony Blee in 1969–70.

[4] In 2004, Hammerson appointed Formation Architects (then the Halpern Partnership) to obtain planning permission for change of use from an office to residential use as a single family dwelling.

In 2006, Hammerson and the freeholder, the Grosvenor Estate, sold the leasehold for £37.4 million to Bristol Isles Ltd., a private investment company controlled by the Emir of Qatar.

[5] The house was subject to a major refurbishment to the designs of Formation Architects with interior decoration by Alberto Pinto, and restoration which included a rebuilding of the historic picture gallery and ballroom.

[6] Soon after the article was published, Westminster City Council rejected a Qatari planning application to combine two mansions on Cornwall Terrace in Regent's Park to create a 17-bedroom palace.