Osterley is an affluent district of the historic parish of Isleworth in west London approximately 8.7 miles (14.0 km) from Charing Cross and is part of the London Borough of Hounslow. Most of its land use is mixed agricultural and aesthetic parkland at Osterley House, charity-run, much of which is open to paying visitor access.

Isleworth is a suburban town located within the London Borough of Hounslow in West London, England. It lies immediately east of the town of Hounslow and west of the River Thames and its tributary the River Crane. Isleworth's original area of settlement, alongside the Thames, is known as 'Old Isleworth'. The north-west corner of the town, bordering on Osterley to the north and Lampton to the west, is known as 'Spring Grove'.