defined by the 1948 Act as the urban districts of Feltham, Staines and Sunbury on Thames; Yiewsley and West Drayton were returned to the Uxbridge seat. 1955 onwards In the 1955 redistribution Feltham became the southwest of the new Feltham seat. Since 1955 the seat has comprised the former urban districts of Staines and Sunbury-on-Thames, added in local government to Surrey in 1965, and merged in 1974 to form in local government the Borough of Spelthorne. The seat was categorised as a borough constituency from the February 1974 general election and for that election unaffected in the periodic redistribution. In 1995 the small settlement of Poyle, transferred from Buckinghamshire to the area in 1974 and long part of the possessions of Stanwell in Middlesex, was transferred to the Borough of Slough. The Boundary Commission recommended no changes to this seat in their fully implemented Fifth Review for the 2010 election, nor in the draft 2018 Sixth Periodic Review of Westminster constituencies. Constituency profile 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. While relative to the county as a whole this borough is marginally less affluent, in national terms it is more affluent. Workless claimants (registered jobseekers) were in November 2012 significantly lower than the national average of 3.8%, at 2.0% of the population based on a statistical compilation by The Guardian, only 0.3% higher than the affluent neighbouring constituency of Twickenham in London. Most residents can afford to buy their own homes: social housing accounts for only 10% of the total, and the proportion of professionals and managerial workers is high. Spelthorne has Labour's highest vote share of the eleven seats (30.5%) in the modern reduced definition of Surrey, where Stanwell is as at the only County Council division (seat) held by a Labour councillor. Stanwell in common with Sunbury Common has significant social housing. Spelthorne exceeds the average quota of commercial property