Governance of the city was fragmented, and responsibilities for planning, transport, and other city-wide matters were divided between local boroughs and national authorities.

In 1965, the Greater London Council was established, covering a broader area.

It managed transport, strategic planning, and services across Greater London.

The referendum question was: 'Are you in favour of the Government's proposals for a Greater London Authority, made up of an elected mayor and a separately elected assembly?'

The Act comprises 425 Sections in 12 Parts including 22 named Chapters and 34 Schedules.