The seat is south of Heathrow Airport bounded by a long meander of the Thames. It is a more built-up area with numerous but less expansive green spaces, fewer private roads and little woodland compared to further south in Surrey. Some 30% is embanked reservoir or low-lying flood plain therefore immune against building. Contrasting with these large areas of fresh water, Surrey County Council have built a waste incinerator in Charlton in the seat and the 1970s saw the construction of the M3 and M25 motorways through the seat, the latter along its western border.