Mayor & Assembly

The Greater London Authority (GLA) comprises the Mayor and the London Assembly. The Mayor is the executive arm of the GLA and the 25 strong Assembly is its scrutiny arm, holding the Mayor to account and raising issues of interest to Londoners.

Functional bodies

The Mayor has a wide range of pan-London responsibilities some of which are performed by the GLA and some of which are performed by the GLA's four functional bodies:

GLA role

The Mayor’s priorities cover a wide range of public service provision, some of which are set out in the GLA Act and associated pieces of legislation and some of which the Mayor has used his discretionary powers to identify as priorities. Examples of discretionary Mayoral initiatives include the GLA’s youth and volunteering programmes.

The GLA Act provides the GLA with a lead strategic role in the following areas:

  • Economy
  • Housing
  • Planning
  • Environment
  • Culture
  • Health improvement

The GLA also manages Parliament Square and Trafalgar Square and leads on London Resilience.

Central and local government

Central government and local government represent the other two tiers of government in London. Central government provides most of the funding for the GLA and the London boroughs. Central government also leads in the following areas:

  • National Health Service (NHS)
  • Social security
  • Defence
  • Most forms of taxation

There are 33 local authorities in London, comprising 32 London boroughs and the Corporation of London (external website). Local authorities are democratic institutions whose leadership are directly elected by the local communities which they serve. In London local authorities’ views on certain issues are represented by an umbrella group, London Councils (external website). Boroughs lead at a local level on:

  • Education
  • Social services
  • Housing
  • Planning

The boroughs and the Corporation collect a local property based tax known as Council Tax from their local residents. The GLA adds a precept to the bills generated by local authorities, which helps to fund the GLA’s and its functional bodies’ activities.