Greater London Authority · E12000007 · ONS London region

Greater London Authority

Mayor of London

Strategic / metro mayor layer only. Constituent councils below are Watchtower CTYUA pages — their debt and crime figures are not this authority’s. Ceremonial civic mayors are out of scope.

Labour

Mayor

Sadiq Khan

Mayor of London

Party

Labour

As published

Last election

2 May 2024

GOV.UK factsheets: most recent GLA mayoral election May 2024. Date is the ordinary local-election Thursday that year.

Next election

4 May 2028

Greater London Returning Officer paper to the GLA Elections Review Working Group, 12 November 2025.

Powers tier

Established Mayoral Strategic Authority (GLA)

Bespoke Greater London Authority settlement. GOV.UK names the GLA as an Established Mayoral Strategic Authority; GLA Acts, not the combined-authority statutes, are the primary legal base.

Commons Library GLA briefing treats Sadiq Khan as the current Mayor. Local-authority and ceremonial mayors in the boroughs are out of scope.

ONS London region (ITL1 / former GOR). The GLA is not a combined authority and has no E47 CAUTH code.

Elections

Last: 2 May 2024 (ordinary); GOV.UK factsheets: most recent GLA mayoral election May 2024. Date is the ordinary local-election Thursday that year.
Next: 4 May 2028 (ordinary); Greater London Returning Officer paper to the GLA Elections Review Working Group, 12 November 2025.; Calendar: next 4 May 2028 · last 2 May 2024

Constituent councils in Watchtower

Upper-tier, unitary and London borough pages that already exist in this snapshot. Combined authorities do not replace those councils.

Barking and Dagenham · London borough
Barnet · London borough
Bexley · London borough
Brent · London borough
Bromley · London borough
Camden · London borough
City of London · London borough
Croydon · London borough
Ealing · London borough
Enfield · London borough
Greenwich · London borough
Hackney · London borough
Hammersmith and Fulham · London borough
Haringey · London borough
Harrow · London borough
Havering · London borough
Hillingdon · London borough
Hounslow · London borough
Islington · London borough
Kensington and Chelsea · London borough
Kingston upon Thames · London borough
Lambeth · London borough
Lewisham · London borough
Merton · London borough
Newham · London borough
Redbridge · London borough
Richmond upon Thames · London borough
Southwark · London borough
Sutton · London borough
Tower Hamlets · London borough
Waltham Forest · London borough
Wandsworth · London borough
Westminster · London borough

Sources

House of Commons Library — The Greater London Authority (SN05817) · as of 11 May 2026
MHCLG — English devolution: Area factsheets · as of 10 Jul 2025
Greater London Returning Officer — preparations for 2028 Mayor of London and London Assembly elections · as of 12 Nov 2025

Source: Curated Watchtower mayors snapshot. As of 14 Sept 2026.

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