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UK approval for Gatwick airport expansion lawful, court rules

Published by Global Banking & Finance Review

Posted on June 23, 2026

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· Last updated: June 23, 2026

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UK approval for Gatwick airport expansion lawful, court rules

High Court Decision and Implications for Gatwick Airport Expansion

LONDON, June 23 (Reuters) - Britain's approval of Gatwick Airport's expansion was lawful, London's High Court ruled on Tuesday, allowing the country's second busiest hub to proceed with a plan to add millions of new passengers by 2030.

Legal Challenge from Environmental Groups

The opening of a second runway at Gatwick, situated 30 miles (48 km) south of London, was given the go-ahead by the government last year but faced a legal challenge brought by two environmental groups over noise and pollution.

Both groups, the Gatwick Area Conservation Campaign and Communities Against Gatwick Noise and Emissions, said they would look to appeal Tuesday's ruling.

Government Position on Airport Expansion

GOVERNMENT HAS BACKED NEW RUNWAY

The government has said the increasing use of sustainable aviation fuel means airport expansion is not incompatible with its net-zero targets, and has backed a new runway at Heathrow, the country's biggest hub, and at Gatwick, where a second back-up runway will be converted into full use.

Political Support and Economic Rationale

Prime Minister Keir Starmer, who said on Monday he would step down after less than two years in the job, has backed infrastructure projects like airport expansion as a way to help grow Britain's stagnant economy.

Judicial Review and Court's Reasoning

In the case of Gatwick, Judge Tim Mould dismissed the two claims seeking a judicial review of the expansion, saying the government's reasons for granting approval were "rational and supported by proper, adequate and intelligible reasons".

Mould also rejected arguments about the development's environmental impact, saying it was not contradictory for the government to say it would not affect its ability to meet carbon reduction targets.

Reactions to the Court Ruling

"We welcome the High Court's decision to uphold our approval of expansion at Gatwick Airport," a Department for Transport spokesperson said.

"This is a project that balances our environmental and climate commitments with huge economic benefits — bringing around 14,000 new jobs to local people, and delivering £1 billion a year to benefit all four corners of the UK."

Future Prospects for Gatwick Airport

NEW RUNWAY 'COULD BE OPEN BY END OF DECADE'

A spokesperson for Gatwick said in a statement after the ruling: "We now look forward to turning our plans into reality and will announce further details in due course."

Gatwick, which is owned by VINCI Airports and Global Infrastructure Partners, said the new runway could open by the end of the decade, providing a £1 billion boost to the economy each year through trade and tourism and creating 14,000 jobs.

Potential Political Challenges Ahead

However the expansion of London's two biggest airports, both of which are operating close to capacity, could yet be derailed by Starmer's likely successor, Andy Burnham.

He has in the past warned that expanding Heathrow could deprive northern England of the investment it needs.

(Reporting by Sarah Young; Editing by Michael Holden and Jan Harvey)

Key Takeaways

  • High Court ruled on June 23, 2026 that the approval for Gatwick’s second runway expansion was lawful, rejecting challenges brought by campaign group Communities Against Gatwick Noise Emissions (CAGNE) and Peter Barclay, chair of GACC.
  • Campaigners had argued the development consent failed to properly assess greenhouse gas emissions—especially from inbound flights and non‑CO₂ effects—and overly relied on the government’s Jet Zero Strategy; the court dismissed these claims.
  • The £2.2 billion, privately funded project—approved in September 2025—will repurpose Gatwick’s emergency runway, enabling approximately 100,000 additional flights annually and promising economic benefits including job creation.

Frequently Asked Questions

What did the UK High Court rule regarding Gatwick Airport's expansion?
The UK High Court ruled that Britain's approval of Gatwick Airport's expansion was lawful.
Who challenged the Gatwick Airport expansion approval?
The legal challenge was brought by the campaign group Communities Against Gatwick Noise Emissions.
What was the main concern of the campaigners?
Campaigners argued the decision did not properly consider Britain's climate change goals.
Where is Gatwick Airport located?
Gatwick Airport is situated 30 miles (48 km) south of London.
What does the expansion plan at Gatwick involve?
The approved expansion involves the opening of a second runway at Gatwick, the UK's second largest airport.

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