Osterley is a district in the London Borough of Hounslow in west London. It is situated approximately 10 miles (16.1 km) west south-west of Charing Cross. Osterley lies north of the A4 (The Great West Road) and extends further northwards beyond the M4 Motorway. Syon Lane forms the border to the east, while the border with the town of Heston lies to the west. See also Osterley House.