Charting the journey of the third runway from Margaret Thatcher to High Court via protests

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Source: Shutterstock

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Edward Heath

1968

Harold Wilson鈥檚 Roskill Commission recommends Cublington in Buckinghamshire as the site for a new airport.

1971

Edward Heath鈥檚 government opts for Maplin Sands on the Thames Estuary.

1979

Margaret Thatcher decides against building an international airport in favour of expanding existing regional airports.

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Margaret Thatcher

1993

The Runway Capacity in the South East study concludes that Heathrow expansion is the only way to meet demand, but proposals for new runways at Heathrow and Gatwick are rejected two years later.

2003

Future of Air Transport white paper recommends a third runway for Heathrow and more runways at Stansted, but there is little progress.

2008

London mayor Boris Johnson proposes an airport in the Thames Estuary. The next year, Gordon Brown backs a third runway for Heathrow but, in opposition, David Cameron pledges to stop Heathrow鈥檚 plans.

2010

Coalition rules out new runways at Heathrow, Stansted and Gatwick

2012

Cameron sets up Airports Commission, under Howard Davies, to report after the 2015 general election in response to increasing pressure on the issue.

2015

Davies backs Heathrow expansion. Cameron promises a decision by the end of the year but changes his mind due to concerns about the impact on the London mayoral election.

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Howard Davies

25 October 2016

Theresa May鈥檚 government approves a third runway for Heathrow but the decision is subject to a long public consultation period followed by a vote in parliament towards the end of 2017.

December

Heathrow announces consultant team and starts work on planning application for new runway.

February 2017

The government lays out the conditions Heathrow must meet to get going with its expansion as part of a new public consultation.

October

Transport secretary Chris Grayling launches another consultation on the revised draft of the Airports National Policy Statement

December

Heathrow reveals plans to save 拢2.5bn on the cost of a third runway by dropping its dedicated new terminal. The new cost is estimated at 拢14bn.

January 2018

Heathrow opens a 10-week public consultation on its own expansion plans.

March

MPs on the transport select committee raise concerns about plans to expand Heathrow.

25 June

MPs give plans for a third runway the go-ahead, with the motion passing by 415 votes to 119.

August

Friends of the Earth launches legal action against the expansion.

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John McDonnell

May 2019

High Court dismisses legal challenges against Heathrow expansion. This is appealed by environmental groups including Greenpeace, and the mayor of London.

December

Heathrow says expansion has been delayed by up to three years after the aviation regulator rejected its plans to up spending before it gets approval.

February 2020

Third runway plans are ruled illegal over climate change concerns. Heathrow has said it will appeal to the Supreme Court.