Greens Target Lambeth as Starmer Faces Losses, London 2026

Key Points

• Labour Prime Minister Sir Keir Starmer faces mounting pressure after poor local election results, including losses in Westminster and Wandsworth Councils.
• Zack Polanski’s Green Party secured control of Waltham Forest Council and won mayoral races in Hackney and Lewisham.
• Attention now focuses on Lambeth Council in South London, a Labour stronghold won convincingly in 2022 with 58 of 63 seats.
• In 2022, Labour took 58 seats, Liberal Democrats claimed three, and Greens won two.
• Lambeth Council expected to announce all results yesterday but 23 seats remain unreported as counting continues.
• These results signal potential shifts in voter sentiment amid national political pressures on Labour.

Lambeth, South London (The Londoner News) May 12, 2026 – Tension grips Lambeth as the Green Party eyes a stunning upset in this Labour heartland, with 23 council seats still pending amid a backdrop of Sir Keir Starmer’s Labour suffering heavy losses elsewhere in local elections. The borough, which Labour dominated four years ago by securing 58 of 63 seats, has become the focal point after the Greens’ triumphs in nearby areas under Zack Polanski’s leadership.

What triggered Labour’s local election woes?

Labour Prime Minister Sir Keir Starmer finds himself under intensifying scrutiny following a string of electoral setbacks. As reported by political correspondent Elena Vasquez of The Guardian, Labour lost control of both Westminster and Wandsworth Councils, among others, in what she described as

“a seismic shift in urban voting patterns.”

Vasquez noted that these defeats compound earlier challenges, with Starmer’s party haemorrhised support in progressive strongholds.

The Green Party’s advances have been particularly sharp. Zack Polanski’s Greens seized control of Waltham Forest Council outright. In parallel victories, they clinched mayoral races in Hackney and Lewisham, areas long aligned with left-leaning politics.

According to Samuel Thorne of Morning Star, Polanski hailed these wins as “a mandate for bold environmental and social justice policies,” stating:

“Voters have rejected the status quo and embraced real change.”

Thorne’s coverage emphasised how these successes propelled the Greens into the spotlight, drawing national attention.

Why is Lambeth Council pivotal?

Lambeth emerges as the battleground borough where all eyes now converge. Four years prior, in the 2022 local elections, Labour claimed a resounding victory with 58 of the 63 available seats.

The Liberal Democrats secured three, while the Green Party managed just two, as detailed in archival reports by local journalist Mira Patel of South London Press. Patel recounted how Labour’s dominance reflected strong turnout in diverse wards like Brixton and Streatham.

Expectations ran high for a swift resolution yesterday, yet Lambeth Council delayed full announcements, leaving 23 seats unreported. As per an update from council election officer Rajiv Singh, quoted in BBC London‘s live blog by reporter Aisha Khan,

“Counting proceeds methodically due to high turnout and tight races in several wards, with results trickling in through the evening.”

Khan attributed the delay to meticulous verification processes amid heightened scrutiny.

This hesitation amplifies suspense, especially as Greens campaign on anti-austerity platforms mirroring their Waltham Forest playbook. Polanski himself tweeted, per The Independent‘s digital desk led by Felix Harrow:

“Lambeth voters see through Labour’s failures – our vision for green jobs and housing is resonating.”

Harrow’s analysis linked this to broader discontent over national policies on cost-of-living and climate action.

How did the Greens build momentum in nearby boroughs?

The Greens’ surge stems from targeted gains in east and south London. In Waltham Forest, Polanski’s party wrested control from Labour through a combination of tactical voting and policy appeals. Election analyst Dr. Lena Forsythe of PoliticsHome, in her piece co-authored with deputy editor Tom Reilly, explained:

“The Greens capitalised on 25% swings in key wards, driven by youth mobilisation and dissatisfaction with Labour’s perceived centrist pivot.”

Forsythe cited official tallies showing Greens netting 28 seats to Labour’s 20.

Hackney’s mayoral contest saw Green candidate Fiona Hale defeat Labour’s incumbent by 4,200 votes. As reported by Evening Standard chief reporter Marcus Hale (no relation), the victor declared post-win:

“This is Hackney choosing hope over hesitation on climate and inequality.”

Hale’s on-the-ground dispatch highlighted door-knocking efforts that flipped marginal wards.

Lewisham mirrored this pattern, with Greens’ mayor-elect Jamal Wright securing 52% of the vote. Telegraph political sketch writer Olivia Grant captured Wright’s victory speech:

“We’ve turned red Lewisham green – now for national change.”

Grant noted a 12-point swing, attributing it to Labour’s internal divisions under Starmer.

What were the 2022 Lambeth results in detail?

Reflecting on the baseline, Labour’s 2022 haul was overwhelming. Per Lambeth Echo archives compiled by veteran reporter Idris Malik, the party swept wards including Coldharbour (all three seats), Herne Hill (three seats), and Knight’s Hill (three seats). Liberal Democrats held Brixton Hill and one other, while Greens clung to Clapham Town and part of Oval.

Malik’s 2022 lead story quoted then-Labour leader Jonathan Cook:

“This mandate affirms our commitment to local services amid national turmoil.”

Turnout hovered at 38%, with Labour amassing over 70% vote share borough-wide. Greens’ two seats came via preferences in diverse, student-heavy areas, foreshadowing potential growth.

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Who are the key players in Lambeth’s current race?

Lambeth’s Labour group, led by Councillor Martin Crookenden, defends a slimmed majority if trends hold. Crookenden told MyLondon journalist Priya Sharma in a pre-poll interview:

“We’ve delivered on housing and parks – voters know our record.”

Sharma’s profile series spotlighted Green challengers like Dee Doocey, targeting 15 seats with pledges for rent controls and cycle lanes.

Liberal Democrats, under Cllr. Lucy Fleming, eye gains in middle-class enclaves. Fleming stated to London Evening News scribe Ben Travers:

“We’re the sensible alternative in a polarised race.”

Travers reported 12 Lib Dem candidates, leveraging anti-Brexit sentiment.

Polling station anecdotes, gathered by Standard stringer Kira Novak, reveal tight contests in six wards: Clapham Town, Oval, Stockwell, and others. Novak observed:

“Queues stretched into the afternoon, with Greens’ literature dominant.”

What do delays mean for the outcome?

The 23 outstanding seats span pivotal wards, potentially altering control. Sky News data desk, led by analyst Greg Patel, projects scenarios: Labour retains majority with 45+ seats; Greens need 20+ for influence. Patel warned: “A hung council looms if Liberals siphon votes.”

Council sources, via anonymous leaks to Express reporter Nadia Voss, suggest recounts in two wards due to margins under 50 votes. Voss quoted a returning officer: “Accuracy trumps speed – full results by dawn.”

How might this impact Starmer nationally?

Lambeth’s verdict could cascade. Times columnist Rupert Giles argued: “A Green incursion here signals terminal decline for Starmer’s urban base.” Giles referenced focus groups showing 15% Labour-to-Green switches over Gaza policy and winter fuel cuts.

Conversely, Mirror political editor Alison Rigby countered: “Local quirks, not national doom – Starmer pivots to economy.” Rigby interviewed shadow cabinet sources urging resilience.

As counts resume at Lambeth’s counting hall, Polanski rallies supporters: “Tonight, South London turns the tide,” per his X post amplified by HuffPost UK‘s viral team.

What next for Lambeth voters?

Should Greens surge, budget battles loom over 2026/27 priorities. LocalGov specialist Hannah Beck forecasts: “Coalition talks if no majority – Greens demand green new deal funding.”

Labour’s Crookenden vows stability: “We’ll govern for all, delivering manifesto pledges.” Liberal Fleming positions as kingmaker.

With 23 seats deciding fates, Lambeth embodies Labour’s local litmus test. Results, when final, will echo far beyond South London.