Plans to devolve more power to local regions have been revealed by the government , with a pledge to cover 90 per cent of England’s population in the coming years.

Alongside its Autumn Budget , Labour has shared more details on how it will transfer power from Whitehall to local leaders in a bid to deliver “good growth in every postcode”.

Ten new devolution agreements are in their final stages as part of the plan.

These will establish new mayoral authorities in: Devon, Plymouth and Torbay; Hertfordshire; Lancashire; Leicester, Leicestershire and Rutland; Stoke and Staffordshire; Surrey; Thames Valley; and Wessex.

Kent and Medway, and Cornwall will set up slightly different devolution models under the proposals.

Once established, there will be 22 regional authorities operating across England, up from the current 12.

Delivering the Budget, chancellor John Healey said this would mean: “New powers to the people who know their areas best, not sentimentality but supply-side economics.…