Shepperton is an English town in the borough of Spelthorne, Surrey which was in the former historic county of Middlesex 17.5 miles (28.2 km) south west of Central London, bounded by the Thames at Desborough Island to the south and in the north-west bisected by the M3 motorway. It is equidistant between the north Surrey towns of Chertsey and Sunbury-on-Thames. More information on the Wikipedia page [1]