We are working closely with the Department for Transport and the industry on the expansion of capacity at Heathrow airport. We need to ensure that we develop regulatory arrangements that deal with the associated challenges, and supports capacity expansion in a timely and efficient and effective way, which furthers the interests of consumers.
CAP3149 Heathrow Capacity Expansion – consultation on regulatory policy on early costs, August 2025
In CAP3149, we are consulting interested parties on the regulatory policy on the recovery of early expansion costs incurred by potential developers before the Government takes a decision on whether to grant a Development Consent Order for capacity expansion at Heathrow airport.
The following documents and letters provide supporting information that we have used in the consultation. HAL and the Arora Group have provided their consent for us to publish these documents.
- Letter from Carlton Brown to Selina Chadha, 4 July 2025 – “Third runway expansion plan at London Heathrow Airport – cost recovery”
- Letter from Andrew Walker to Carlton Brown, 21 July 2025 – “Re: Third runway expansion plan at London Heathrow Airport – cost recovery”
- Letter from Ross Baker to Selina Chadha, 26 June 2025 – “Early costs for expanding Heathrow”
- Letter from Selina Chadha to Ross Baker, 14 July 2025 – “Re: Early costs for expanding Heathrow”
- Letter from Ross Baker to Selina Chadha, 17 July 2025 – “Early costs for expanding Heathrow”
- Letter from Andrew Walker to Ross Baker, 22 July 2025 – “Early costs for expanding Heathrow”
- Letter from Mike King to Andrew Walker, 31 July 2025 – “Heathrow application to increase the H7 capex allowance”
CAP3144, Statement on scope and process, July 2025
We published CAP3144 to set out the scope and process for our review of the regulatory approach to capacity expansion at Heathrow airport.