Capacity expansion | UK Civil Aviation Authority

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.

CAP3173 Update on the regulatory treatment of the early costs of capacity expansion at Heathrow airport

This document (CAP3173) provides an update on the regulatory policy on the recovery of early expansion costs incurred by potential promoters before the Government takes a decision on whether to grant a Development Consent Order for capacity expansion at Heathrow airport

Close CAP3173 Update on the regulatory treatment of the early costs of capacity expansion at Heathrow airport

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.