Dulwich & West Norwood.

Dulwich and West Norwood is an inner-south-London seat, densely urban and young, with a median age of 35 and more than half of adults degree-educated. It straddles two local authorities, both London borough councils: the larger share of the population sits within Lambeth, which holds seven of the seat's wards, with three further wards in Southwark. There is no single dominant town centre; the constituency reads instead as a continuous run of city neighbourhoods, from Brixton and Herne Hill across to Dulwich and Gipsy Hill, with only a small dispersed remainder. Just over half the population recorded as ethnically White at the last census, in line with the area's mixed character.

The ward picture has moved sharply. Across the 24 most-recent ward contests, the Green Party took 15, with Labour and Co-operative candidates winning seven and Labour two, all contested in May 2026. That marks a clear shift away from a council map Labour once dominated, with Greens now winning across Brixton, Gipsy Hill and Herne Hill. The parliamentary picture remains more settled: Labour's Helen Hayes, the member since 2015, held the seat in 2024 on 60.3 per cent, with the Greens a distant runner-up on 18.9 per cent, down from her 65.5 per cent in 2019. On the figures available, the same party leads at both levels, but by very different distances.

The direction-of-travel is one of a Labour parliamentary vote sitting atop an increasingly contested local base, and recent coverage has been heavily preoccupied with the council results and the change in borough composition. Both boroughs have shifted in the Greens' favour at ward level, leaving the local administration in a more fluid state than the general-election margin alone would imply. Some crime categories run well above the constituency average, notably theft from the person and vehicle crime, consistent with a busy inner-London setting. The seat appears safe for Labour at Westminster on present numbers, yet the gap between that result and the ward returns leaves its longer-term local standing genuinely open.