Lansdowne House now 9 Fitzmaurice Place is the remaining part of a building to the south of Berkeley Square in central London, England, not to be confused with 57 Berkeley Square – opposite – a much later quadrilateral building which takes its name as an extra line of address. The name was for two decades Shelb(o)urne House, then its title matched its owning family's elevation to a higher peerage in 1784. It was frequently let, as a whole, to families of very high wealth or income. Some of its 18th-century interiors, among the best in London, were taken elsewhere. It was occupied by three British prime ministers, William Waldorf Astor, 1st Viscount Astor, widely believed to be the richest man in America at the time of his tenancy (1891–1893) and by Harry Gordon Selfridge in the 1920s. The