It’s now over three weeks since the Green Party’s record results in the London elections, and we’ve been reflecting on what the gains mean for us as a party, and on the changing political landscape in our city.

Green Party candidate for Lambeth & Southwark celebrates a game-changing result with GP Lambeth Councillor, Scott Ainslie.

First and foremost a massive thank you to Green Party campaigners and candidates across Southwark and London. These monumental efforts saw voters seize their chance to vote Green outside the usual first-past-the-post system, where Labour and Conservatives inevitably dominate. The London List vote in the Assembly elections is proportional, making a Green vote far more than a gesture of support. Greens came second on this ballot paper, ahead of the Tories and with more than double the votes of the Lib Dems. This helped to give us a third member on the London Assembly: Zack Polanski now joins Siân Berry and Caroline Russell at City Hall, where he’s hit the ground running, pushing mayor Sadiq Khan on proposals for a Citizens Assembly for London.

Even in the first-past-the-post constituency vote, the Green Party in Southwark and Lambeth secured brilliant results. Our candidate, Southwark Greens’ Claire Sheppard, gained 19.7% of the vote, overtaking the Conservatives, to come second to Labour. Ours was one of only two constituencies where the Labour-Tory stranglehold was broken, the other being North East London, where Caroline Russell was in second place to Labour.

% of votes for the Green Party Constituency Candidates in London and in S&L constituency, 2012 - 2021

% votes for Green Party ('List Vote') in London and in S&L constituency, 2012 - 2021

The vote for mayor – under the supplementary vote system – consolidated the Greens’ position as London’s third party. Siân Berry received 11.5% of first-choice votes compared with 8.8% in 2016, and a massive 28% of second-preference votes – the most for any candidate, clearly indicating that Siân and the Green Party can and do get support from across the political spectrum.