Spelthorne.

Spelthorne is a built-up corner of north-west Surrey, hard against the Thames and the western edge of Greater London, with a population of around 103,000 and a median age of 41. No single town dominates; the seat is a network of mid-sized riverside towns, led by Ashford with roughly 24,000 residents, followed closely by Sunbury-on-Thames and Staines-upon-Thames, with Stanwell and Ashford Common behind them. The remainder spreads across smaller settlements such as Shepperton and Laleham. A single district authority, Spelthorne Borough Council, runs local services across the seat's thirteen wards.

Local politics here has become markedly more competitive. Across the most recent ward contests the Liberal Democrats hold a narrow edge over the Conservatives, with Labour third and a scattering of independents; the latest results in Staines and Ashford fell to the Liberal Democrats, and on the figures available control no longer rests comfortably with any one party. The parliamentary picture tells a similar story. The Conservatives held the seat in 2024 but on just 30.4 per cent, with Labour close behind on 27.0 per cent -- a margin of barely three points, down from a near-thirty-point lead in 2019. Lincoln Jopp, the Conservative elected that July, has spoken mainly on the economy, defence and fiscal policy.

On the figures available this is no longer a safe seat but a genuinely contested one, the old Conservative dominance having narrowed sharply at both council and parliamentary level. Recent local coverage has had an administrative, governance-heavy character, dominated by planning and budget-setting and by external oversight of the borough's finances rather than by any single event. Taken together, the direction of travel points to a seat in flux, where the Liberal Democrats and Labour both press from different flanks and the next contest looks open.