Gatwick expansion approved: 100,000 more flights a year from 2030
High Court rejects final legal challenge, clearing way for £2.2bn runway project in West Sussex
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Gatwick Airport will expand its operations after the High Court rejected the last legal challenge to its £2.2 billion runway project. The decision, confirmed on 17 June by Lord Justice Holgate and Lord Justice Dove, ends a year-long effort by campaigners to block the scheme. The airport will now move its emergency runway 12 metres north, enabling an additional 100,000 flights each year from 2030.
The expansion was approved by Transport Secretary Heidi Alexander in September 2023. It will allow Gatwick to use its standby runway for regular departures of narrow-bodied aircraft, including Airbus A320s and Boeing 737s. The airport expects to handle 13 million more passengers annually once the project is complete.
Gatwick second runway approved after Court of Appeal rejects campaigners
£2.2 billion scheme will add 100,000 flights a year from 2030, affecting residents in Crawley and Horley
Legal challenge fails
Peter Barclay and the campaign group Communities Against Gatwick Noise Emissions (CAGNE) had argued that the government failed to properly assess the climate impact of the expansion. They also questioned the need for the project, given Heathrow’s proximity. The High Court dismissed their case in June, with Mr Justice Mould ruling that the decision was not illogical.
Barclay and CAGNE sought permission to appeal to the Court of Appeal, but their request was rejected on 17 June. Lord Justice Holgate and Lord Justice Dove described the grounds for appeal as unarguable, stating that neither case had a real prospect of success. Their 29-page ruling called Mr Justice Mould’s decision detailed and thorough.
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This is a major milestone for Gatwick and for local communities, with expansion unlocking investment and creating thousands of new jobs.
Heidi Alexander, Transport Secretary
Impact on local residents
The expansion will increase flight numbers by around 270 per day, raising concerns about noise and air quality in Crawley and Horley. Gatwick is already the UK’s second-busiest airport and one of the busiest single-runway airports in the world. The additional flights will primarily involve short-haul routes, with no plans for long-haul expansion.
The government has pledged £219 million to support green fuel production, aiming to reduce aviation emissions. Transport Secretary Heidi Alexander said the expansion would strengthen global links and make the UK more attractive for investment. She did not specify how the additional flights would align with the UK’s carbon reduction targets.
What happens next
With the legal challenge resolved, Gatwick Airport can now proceed with construction. The first flights from the realigned runway are expected in 2030. There are no further formal consultation stages or legal avenues for residents to challenge the decision. Local councils in Crawley and West Sussex may seek discussions with the airport about noise mitigation and community compensation.
Questions this report answers
+How many more flights will Gatwick handle after the expansion?
The expansion will allow around 100,000 additional flights per year, increasing daily flights by approximately 270. This will primarily involve narrow-bodied aircraft like Airbus A320s and Boeing 737s, with no long-haul expansion planned.
+When will the new runway be ready?
The first flights from the realigned runway are expected in 2030. Construction will begin now that the legal challenge has been dismissed, with no further delays anticipated in the planning process.
+Can residents still challenge the expansion?
No. The High Court dismissed the final legal challenge in June, and the Court of Appeal refused permission to appeal on 17 June. There are no remaining formal avenues for residents to contest the decision.
+What will the expansion cost?
The project is budgeted at £2.2 billion. The funding covers realigning the emergency runway, infrastructure upgrades and environmental mitigation measures, as confirmed by the Department for Transport.
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