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Mayor of London and London Assembly Election - 6 May 2021

Elections for the Mayor of London and London Assembly were postponed in 2020 due to COVID-19 and will now take place on Thursday 6 May 2021.

Voters in Southwark will be given three different coloured ballot papers:

  1. The Mayor of London (pink ballot paper)
  2. The Assembly Members that represent the whole of London (yellow ballot paper)
  3. The Assembly Member to represent the Lambeth and Southwark Constituency (orange ballot paper)

The full list of candidates for all three contests is now available on the London Elects website.

For more information about the Mayor of London and Greater London Assembly elections, visit London Elects website.

Key dates

Publication of notices of election

Monday 22 March

Poll cards are sent out

Monday 22 March

Start of nominations

Monday 22 March

Close of nominations

4pm, Tuesday 30 March

Publication of statement of persons (and parties) nominated

No later than 4pm, Thursday 1 April

Deadline for new registration applications

Monday 19 April

Deadline for new postal voting applications and for amending or cancelling an existing postal vote

5pm, Tuesday 20 April

Deadline for new proxy voting applications

5pm, Tuesday 27 April

First date that electors can apply for replacements for lost or spoilt postal ballots

Thursday 29 April 

Polling day for Mayor of London and London Assembly Elections

Thursday 6 May

Deadline for applying for replacement postal ballots and for making emergency proxy applications

5pm, Thursday 6 May

Election counts take place

Friday 7 May

Election notices


Results for all of the Mayoral and London-wide London Assembly member contests are published by the Greater London Authority (GLA).

Results for the Lambeth and Southwark London Assembly constituency member contest will also be available on Lambeth’s election results webpage.

Who can vote

All British, Commonwealth and European Citizens, who are currently registered to vote or who register by Monday 19 April 2021, can vote in these elections.

Register to vote

To vote in these elections, you must apply to register to vote by midnight on Monday 19 April. If you’re already registered to vote, you do not need to register again.

Poll cards

Poll cards are being sent from 22 March. You do not need your poll card in order to vote in person. When you visit your polling station, provide your name and address to the polling station staff, who will find your details on the register and give you your ballot papers.

Polling stations

Polling stations will be open from 7am until 10pm on polling day. Find the location of your nearest polling station.

Voters will be asked not to fold the ballot papers when they put them in the ballot box. This is to assist with the scanning of votes for the electronic count.

Polling stations for 2021 GLA elections. (pdf, 194kb)

Voting and COVID-19

The elections will take place at a time when COVID-19 continues to present risks to public health. We're putting arrangements in place to help ensure you can stay safe when casting your vote.

You can expect many of the measures you’ve become used to in recent months, such as social distancing, face masks, hand sanitiser, floor markings and limited numbers in the polling station. This may result in queues, so please try to avoid busy times when you go to vote.

Find Frequently Asked Questions about voting and COVID-19 (pdf, 130kb).

Voting by post

It will be safe to vote in person at your polling station, but if you’re thinking of voting by post, apply early to ensure we have plenty of time to process your application.

The deadline to apply for a postal vote is 5pm on Tuesday 20 April. If you're unable to apply online, complete a paper form. Please email us or contact us on 020 7525 7373 and we can post an application form to you.

The dates postal votes will be sent to voters will be confirmed by the Greater London Authority soon. 

If you apply for a postal vote by 31 March, it's currently estimated that a postal ballot pack for these elections will be sent to you between 15 and 21 April.

If you apply for a postal vote after 31 March, it's currently estimated that a postal ballot pack will be sent to you around 23 April.

Replacements for lost and spoilt postal ballots

If you're registered to vote by post, but have lost, spoilt, or have not received your postal vote ballot we sent to you, you can apply for a replacement from Thursday 29 April until 5pm on Thursday 6 May.

Replacements for lost or spoilt postal ballots can be issued in person at Southwark Council Offices, 160 Tooley Street between 9am and 5pm, Monday to Friday.

To get your replacement postal ballot, you must bring photo ID and proof of address with you.

If you cannot collect your replacement postal vote in person, or if you have any other questions, email us or contact 020 7525 7373 for more information. 

Voting by proxy

If you cannot go to your polling station on Thursday 6 May, you can apply to vote by proxy. This is where you appoint someone you trust to vote on your behalf, either at your polling station or by post.

The deadline to apply for a proxy vote is 5pm on Tuesday 27 April. If you're unable to apply online, you can complete a paper form. Please email us or contact us on 020 7525 7373 and we can post an application form to you.

If you're registered for a postal vote, but would prefer to vote by proxy, you must cancel your postal vote by 5pm on Tuesday 20 April.

If the person you appoint to vote on your behalf does not live locally and cannot attend your polling station, your proxy can apply to receive your vote by post. Both the proxy vote application and the proxy’s postal vote applications must be received by 5pm on Tuesday 20 April.

Voting by emergency proxy

You can apply for an emergency proxy, if you cannot vote in person due to work related reasons or a medical emergency that occurred after 5pm on Tuesday 27 April. The application must be supported by your employer or a health professional.

You can also apply if you have to self-isolate or quarantine due to COVID-19.

If you have any questions or need more information, email us or phone 020 7525 7373.

Page last updated: 27 April 2021

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