Greater London Authority Selection Process

The 25-member London Assembly on the Greater London Authority is the body that scrutinises and holds to account the Mayor of London. It organises itself into subject-based scrutiny committees, taking evidence and publishing reports. However it has no service delivery responsibilities, and its powers overall are far more limited than on other devolved authorities. The Assembly does have the power to reject the Mayor’s budgets and strategies, although this requires a two thirds majority. For further information on the London Assembly, please see the website here.


The London Assembly is elected by the Additional Member system. There are 14 single-member constituencies and 11 additional member or “top-up” seats (sometimes known as ‘list’ seats) representing the whole of Greater London. Voters have one vote for the constituency member and one vote for the top-up/list seats. Labour currently hold 12 positions, 9 of which are constituency positions and 3 are list positions.

The GLA Constituencies and current party are as follows:


GLA Constituencies


Barnet and Camden Labour
Bexley and Bromley Conservative
Brent and Harrow Labour
City and East Labour
Croydon and Sutton Conservative
Ealing and Hillingdon Labour
Enfield and Haringey Labour
Greenwich and Lewisham Labour
Havering and Redbridge Conservative
Lambeth and Southwark Labour
Merton and Wandsworth Labour
North East (Islington; Hackney; Waltham Forest) Labour
South West (Hounslow; Kingston Upon Thames; Richmond Upon Thames) Conservative
West Central (Westminster; Hammersmith and Fulham;
Royal Borough of Kensington and Chelsea)

Labour Party Selections Process

The Labour Party’s procedures for selecting candidates for the GLA are not yet available, but are likely to include the following stages:

  1. Trigger ballots in seats where there are sitting Labour GLA Assembly members.
  2. Applications open for prospective candidates to the Labour Party for GLA Constituencies where there are vacancies (i.e. in non Labour seats, seats where Assembly members have announced they are not re-standing, and seats where sufficient party branches or affiliates have expressed a preference not to automatically reselect the sitting Assembly member), and for list positions.
  3. Interviews and shortlisting of prospective candidates by the Labour Party.
  4. Nominations by CLPs and affiliates.
  5. One Member One Vote (OMOV) ballots.

Once the complete procedure is available, we will update this section.

Momentum’s Endorsement Process

Momentum will consider endorsing candidates in constituency seats which have a vacancy, and which have a genuine possibility of being won by Labour in the 2020 elections, as well as for list positions. People interested in receiving Momentum’s endorsement should first read the person specification and consider applying if they are confident they meet the requirements. To apply, send an application to by 12pm on Monday February 18th, using the subject line ‘GLA Selection Process Application’. This deadline has been chosen in order to take into account the need to consult relevant local groups and activists. Decisions regarding who Momentum supports will be taken by a panel of NCG representatives following the relevant consultations as well as interviews with the candidates that best meet the person specification.</>

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