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Heathrow Airport: Construction

Asked by Munira WilsonLiberal DemocratDepartment for TransportTabled Answered 21 April 2026UIN 126686

The question

To ask the Secretary of State for Transport, if she will make an estimate of the potential planning costs for the delivery of a third runway at Heathrow.

Answered by Keir Mather

The Government recognises the importance of making sure that any scheme for Heathrow expansion is both deliverable and affordable. It is for potential promoters to develop plans for expansion as part of their Development Consent Order application. As the independent economic regulator for expansion, the Civil Aviation Authority (CAA) will determine the recovery of costs incurred by potential promoters of expansion.

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