A Green Mayor for London in 2021

by London Green Party in London, England, United Kingdom

We did it
On 9th April 2021 we successfully raised £26,565 with 636 supporters in 57 days

We're fundraising to elect London's first ever Green Mayor! We can transform politics forever and address the climate emergency.

by London Green Party in London, England, United Kingdom

New stretch target

THANK YOU for helping us reach £20,000.

We can do even more by reaching £40,000.

We'll invest in social media advertising - reaching voters with videos of Sian's key messages.

We'll make sure those videos are top quality and engaging. Short video is making such an impact online right now.

We'll also cover the cost of more leaflets. Your support can help ensure our message lands through the letterboxes of as many Londoners as possible.

We can address London's inequality. We can make London the greenest city in the world. We just need your support. With your donations we can elect a Green Mayor.

After 2020 London needs a fresh start


London has been through a lot in the last 12 months. From the pandemic to Brexit. We need a new plan. A fresh start for London.

The election for Mayor is one of the most high profile elections this year. It's our collective opportunity to demand action on the climate emergency. To elect new Green leadership.

Greens are already making a difference at City Hall. In the London Assembly I’ve been working hard to tackle a big rise in youth homelessness and to win backing for a universal basic income for Londoners, to provide a secure safety net.

Green ideas are winning and only a Green mayor will act with the urgency these extraordinary times demand. 

The Greens are winning all over the world

Politics is changing all over the world. And right now the Green movement has never been more successful at winning elections.

From Bordeaux to Bonn. From Auckland to Amsterdam. Melbourne to Marseille. Green Parties all over the world are breaking through. They’re electing MPs. Green Mayors are running cities.

A map of Green Mayors cross Europe

This year we’re going to bring that Green wave to London. Because our broken politics and the climate emergency can’t wait. 

Your donations can help our big ideas reach all Londoners

We’re aiming to raise £20,000 and your donations will transform London and our campaign. They’ll help us reach as many voters as possible. To spread our winning message.

Our campaign has big ideas. We’re going to make London the greenest city in the world. We’ve got a clear plan to keep London moving. We have fresh thinking for housing.

In this crisis so many people are questioning business as usual. People are rethinking their voting habits. Our campaign is ready to win and ready to build back better. 

We're investing in winning campaign tactics 

Coronavirus has changed the way we campaign. That means our volunteers can't knock on doors. It means we need to invest in new campaign tactics.

We need to do our utmost to make sure every Londoner hears from us in other ways.

And we have a strategy. We can use direct mail and social media to reach more people. It costs more but it works.

We're a grassroots movement, not bought by big interests


Unlike the Labour Party and the Conservatives we don’t have billionaire and corporate backers, we’re powered by people. We’re not bought by big interests

We’re funded by you. Honest. Accountable. Transparent. 

Your contributions keep us competitive with the bigger parties. They can help elect a surge of Greens to City Hall in May. 

We have a brilliant team of Greens standing alongside me for the London Assembly. A fantastic group of campaigners, environmentalists and activists. 


I'm so excited to grow our team of Assembly Members in City Hall.

Your money will help us reach more Londoners than ever before

There’s three key ways your donations will be used for this campaign.

The money raised will pay for our presence in the election booklet delivered to every Londoner. We need £10,000 to help us reach over eight million Londoners.

We need to raise £5,000 to pay for leaflets delivered in a coronavirus-safe way. We’ve already delivered one million leaflets. We want to deliver one million more. That’s how we win over voters.

Finally, we’ll be using social media to engage as many voters as possible. Your donations mean we can compete with the other parties who are already paying for this kind of advertising. £5,000 will help us reach our target audiences.

These are the tactics we need to give our campaign wings. To build on the record level of support in the polls we are already achieving.

The Climate Emergency needs action today


By electing a Green Mayor, we can transform London into the great green city we know it can be. We can put people and planet at the centre of our agenda. 

I’ve got the ideas to make London the greenest city in the world. Better, warmer and cheaper homes. New green spaces. Creating the next generation of green jobs. 

It all starts with your support. Contribute to our campaign and let's create a fresh start for London together.


Sian Berry

Green Party co-leader

Candidate for Mayor of London

P.S. Because we're a political party

  • Please note all donations will go to London Green Party to help our campaign to elect Siân and more Greens to the London Assembly.
  • We're required to run permissibility checks on donations over £500. These will be completed as pledges are made. For the same reason, we cannot accept anonymous donations over £500.
  • If you make multiple donations to us, they may be aggregated for our reporting purposes.
  • Your details will appear in our election returns if valued over £500, and if you donate over £7,500 your identity will appear on the Electoral Commission website. 

Promoted by Nick Barnett on behalf of Sian Berry, Caroline Russell & the Green Party, all at The Biscuit Factory, Unit 215 J Block, 100 Clements Rd, London SE16 4DG.


This project offers rewards in return for your donation.

£20 or more

£20 donation

This would help us reach 1,000 Londoners with our campaign leaflets

£50 or more

£50 donation

This would help us reach 2,500 Londoners with our campaign leaflets

£100 or more

£100 donation

This would cover the cost of over 2,000 phone calls to voters

£500 or more

£500 donation

This would help us reach 50,000 Londoners via social media advertising

£1,000 or more

£1,000 donation

This would help us reach 100,000 Londoners via social media advertising

£5,000 or more

£5,000 donation

This would cover the deposit for our list candidates standing for the London Assembly

£10,000 or more

£10,000 donation

This would cover the deposit needed for Sian to stand as a candidate

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