Worton Hall Studios were based on Worton Hall, in Isleworth. This house was built in 1783 and rebuilt and extended in the early 19th century. In 1913, it was acquired, together with a nine-acre estate, by film producer George Berthold Samuelson. The ground floor rooms became dressing-rooms, canteen, wardrobe and other offices; the upper rooms became bedrooms for anyone staying overnight. Filming of Conan Doyle's "A Study in Scarlet" began in summer 1914 and the studios were officially opened on 1 July.