Spelthorne

Constituency profile

Spelthorne is a constituency in Surrey in South East England, and is coterminous with the borough of the same name. It includes the towns of Staines-upon-Thames, Ashford and Sunbury-on-Thames and the villages of Shepperton and Stanwell. The constituency is ultimately named after the Spelthorne Hundred, a medieval subdivision.

This is a mostly suburban constituency on the outskirts of the London commuter belt; it is located around 16 miles (26 km) south-west of the centre of the capital. Spelthorne is immediately south of Heathrow Airport bounded by a long meander of the River Thames. The constituency is mostly built-up with few green spaces or woodland; around 30% of its area is taken up by embanked reservoirs or low-lying floodplains whilst the rest is made up of residential development. The towns here are historic settlements that were largely rural until the interwar period. Staines and Sunbury are affluent towns with many large detached and semi-detached properties. Stanwell has high levels of deprivation and is mostly made up of estates built for council housing, much of which is still socially rented. House prices across Spelthorne are generally higher than the regional and UK averages.

Spelthorne has a below-average proportion of young adults and a large population of middle-aged adults. Residents have high levels of income and homeownership and the child poverty rate is low. They have average levels of education and a high proportion work in the technology, construction and transport sectors. The percentage claiming unemployment benefits is in line with the UK-wide rate. White people made up 79% of the population at the 2021 census. Asians, mostly of Indian origin, were the largest ethnic minority group at 13% and were largely concentrated in Stanwell.

At the local council, Staines and Sunbury are represented by Liberal Democrats, Ashford and Stanwell mostly by Reform UK and Shepperton by Conservatives. Voters in Spelthorne strongly supported leaving the European Union in the 2016 referendum; an estimated 60% voted in favour of Brexit compared to the UK-wide figure of 52%.

Boundaries

1918–1945: The Urban Districts of Feltham, Hampton, Hampton Wick, Staines, Sunbury-on-Thames, and Teddington, and the Rural District of Staines.

1945–1950: The Urban Districts of Feltham, Staines, Sunbury-on-Thames, and Yiewsley and West Drayton.

1950–1955: The Urban Districts of Feltham, Staines, and Sunbury-on-Thames.

1955–1983: The Urban Districts of Staines and Sunbury-on-Thames.

1983–present: The Borough of Spelthorne (same content as above)

History of boundaries

Spelthorne was one of six hundreds of the historic county of Middlesex which covered its south west. It had thirteen historic parishes whereas the modern borough and seat has seven. The London Government Act 1963 placed the historic county in London except for two areas, one being the seven south-westernmost parishes of Spelthorne and Middlesex, placed since the commencement of the Act in April 1965 in Surrey.

From 1885 to 1918 it was in the inceptive Uxbridge seat, before which its electorate contributed to the two-seat Middlesex constituency since the 13th century creation of the House of Commons of England.

1918–1945

The seat was created by the Representation of the People Act 1918 and amounted to the larger, slightly less built-up part of the increasingly outer metropolitan Uxbridge seat which was split, in 1918, in two. It was given county seat status for unimportant logistical purposes. It amounted to the obsolete hundred plus the small west-to-east parishes in the north of Harmondsworth, Harlington and Cranford as the seat took in seven late 19th century-formed areas of local government, including the Staines Rural District. Due to the incursion into Elthorne Hundred the seat could have more accurately been named South West Middlesex.

1945–1950

For the post-war 1945 election the seat lost an eastern section: three of the historic parishes namely Hampton, Hampton Wick and Teddington to the Twickenham seat (which shifted substantially south, shedding Labour-leaning Hounslow). The seat saw a northern exchange. It gained two small parishes (one of which, Yiewsley was of modern creation) to the NNW from its parent seat. It lost the similarly small Cranford and Harlington parishes to form, with parts of the parent seat, the new seat of Southall, which the incumbent for Spelthorne went on to represent in 1950.

1950–1955

In 1950 the seat was 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 under the 2023 periodic review of Westminster constituencies which came into effect for the 2024 general election.

History of results

The 1918 to 1945 broadest, initial version of the parliamentary division saw no marginal majorities and can be squarely analysed as a Conservative safe seat based on length of party tenure and size of majorities.

In the 1945 general election George Pargiter (Lab) was elected in the Attlee Ministry landslide while the boundaries of the seat saw a favourable form to the party during expansion of London when the area extended to areas to the north, including Feltham and Bedfont (removed in 1955 — see Feltham and Heston) and had cast off Hampton, Hampton Wick and Teddington, before 1945 part of the seat.

Since the 1955 boundary reduction and a local emphasis or demand upon private housing relative to social housing, the reduced area has eight Conservative candidate majorities of greater than 11% and three lower majorities: 1966, 1997 and 2001. The earliest of these produced the narrowest margin of victory, 5% of the vote. Based on length of party tenure and majorities the seat would be considered safe by most UK electoral analysts including of academic standing.

Members of Parliament

The constituency's first MP was Philip Pilditch, an architect who piloted the Ancient Monuments Act 1931 through Parliament: see Scheduled Monument. The most recent MP for Spelthorne (prior to the 2024 election) was the former Chancellor, Kwasi Kwarteng (first elected in 2010).

Uxbridge prior to 1918

Elections

Elections in the 1950s

Boundary changes