Ramsbury Manor is a country house at Ramsbury, Wiltshire, on the River Kennet between Hungerford and Marlborough, in the south of England. It is Grade I listed on the National Heritage List for England.
Sir William Jones bought the estate in 1676. He wanted a country house to match his status, and turned to Dr Robert Hooke as one of the leading architects of the day, whom he already knew from work that Hooke had supervised on Jones' house in Bloomsbury. Hooke met Jones at least five times in 1681, and probably provided him with designs for Ramsbury Manor at that time. Construction of the house probably began in 1681, but the house was unfinished when Sir William died in May 1682. The main structure of the house was completed in 1683, but work on the interior continued until 1686. The house is an excellent example of Hooke's country house style of architecture, dignified and built to the best standards of the time.
The house and land was bought by industrialist William Rootes in 1958. After his death in December 1964, the estate was bought by property tycoon Harry Hyams and became his home until his death in 2015. The purchase price was £650,000 and the Guinness Book of Records for 1966 described it as "the most expensive house in Britain".
On 1 February 2006 the house was the scene of a major burglary by the Johnson Gang. The gang were caught and convicted; the prosecutor Paul Reid said: "This has been described as the most valuable domestic burglary ever committed in this country. The collection is described as priceless. There is a difficulty in putting a value on antiques and antiquities – some of them very precious and very rare – but it is tens of millions of pounds." In August 2008 the gang received long prison sentences.
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