Your Vote Matters uses cookies to make your experience easier. Close this box to accept or go to our cookies page to find out more.


London Mayor and Assembly

Here you can find out more about the London Mayor and Assembly, including what they are responsible for and how the Assembly is made up.

On this page you can find out about the London Mayor and Assembly, including:

  • What do they do?
  • How is the Assembly made up?
  • How and when are they elected?

What do the London Mayor and Assembly do?

The Mayor of London and the London Assembly represent people living in the 32 boroughs of Greater London, and the City of London.

The Mayor of London has the power to make decisions in the following areas:

  • arts and culture
  • economic development
  • the environment
  • fire and safety
  • healthy living
  • policing
  • transport
  • urban regeneration

The London Assembly keeps a check on what the Mayor is doing. It also investigates issues of importance to Londoners, publishes its findings and recommendations, and makes proposals to the Mayor.

Find out more about the work of the London Mayor and Assembly

How is it made up?

The Mayor of London and the London Assembly make up the Greater London Authority (GLA). It has around 600 staff to help the Mayor and Assembly in their duties.

The London Assembly has 25 Assembly Members. 14 of these represent constituencies, which are made up of two or more London boroughs. The other 11 members represent London as a whole.

How are they elected?

When you vote in London Mayor and Assembly elections, you have up to four votes. For each vote, you mark a single cross (X) in the box next to the name of the candidate or party you want to vote for.

London Mayor election

You have votes for your:

  • first choice for Mayor of London
  • second choice for Mayor of London

You do not have to make your second-choice vote, but you must vote for your first-choice or your ballot paper will not be counted.

London Assembly election

You have votes for:

  • a constituency member of the London Assembly
  • a London-wide member of the London Assembly

When are they elected?

Elections for the London Mayor and Assembly take place every four years.

Who is eligible to vote?

To vote in the London Mayor and Assembly elections you must be registered to vote in Greater London and be 18 years of age or over on polling day. You must also be:

  • a British or Irish citizen, or
  • a Commonwealth citizen, who has leave to remain in the UK or who does not require leave to remain in the UK, or
  • a citizen of another European Union country

Find out more information about who is eligible to vote

Problem with this page?

If you would like a response, please let us know your email address.