Welcome to the
Heathrow Expansion Watch website
The potential expansion of Heathrow Airport and the steps required to get there raise many questions.
This website has been created to answer as many of those questions as possible and to provide a useful resource for communities and stakeholders who want to stay informed and make their voices heard.
This platform helps to:
Share updates on key developments and known timelines related to expansion.
Explain the processes, consultations, and decision-making stages involved.
Highlight opportunities for public input—making it easier for residents and interested parties to have their say at key decision points.
Support community understanding of how the expansion might impact areas like the environment, airspace, noise, and quality of life.
Whether you are a local resident, community group, business, or other interested party, Heathrow Expansion Watch is your go-to source to stay in the know and take part in shaping the future of Heathrow in an informed and meaningful way.
We will continually update and refresh the content so you can rely upon it as a comprehensive resource.
Please watch the welcome video, and if you would like to receive updates on expansion and matters relating directly to the airport via email, fill in the form below. Your details are held by the Council for the Independent Scrutiny of Heathrow Airport and not shared with anyone else.
CISHA response to the announcement by the Secretary of State for Transport on ANPS review timing - 22nd October 2025
Today’s announcement by the Secretary of State for Transport provides much-needed clarity on the timescale for the government’s early decisions about any expansion of Heathrow Airport. It is a welcome and crucial step in reducing uncertainty, providing communities and stakeholders with visibility on the important revision of the Airports National Policy Statement (ANPS). The ANPS matters because it sets out the government’s stance on Heathrow Expansion: whether there should be expansion, and the standards that the developer must meet in designing, getting planning consents, and operating an expanded airport. It is consulted upon and then has to be approved by Parliament to stand.
You can read the full CISHA response here. The response contains links to both government announcements today on ANPS timing and the next steps for the two scheme promoter candidates.
CAA consultation - CAP3149: Heathrow Capacity Expansion
The CAA has consulted interested parties on the regulatory policy on the recovery of early expansion costs incurred by potential developers before the Government decides on whether to grant a Development Consent Order for capacity expansion at Heathrow airport.
“My focus, and that of CISHA, is to ensure that both our day-to-day work continues across all of the areas the airport has an impact on, and also to deliver additional support and expertise to ensure communities and stakeholders are able to respond to the substance of the expansion plans in the months and years ahead.”
Tracey Waltho, Chair of the Council for the Independent Scrutiny of Heathrow Airport