Challenging High Speed 2 (HS2)

Challenging High Speed 2 (HS2)

The Chilterns Conservation Board has been involved in the High Speed 2 (HS2) project extensively since it was first announced in 2010 and together with many other local groups and individuals, argued that the route should not pass right through the middle of the protected landscape of the Chilterns AONB.


The Government made the decision to proceed with phase one of HS2 in 2020 and the Chilterns Conservation Board remains steadfast in its view that HS2 will have a significant and lasting negative impact on the Chilterns Area of Outstanding Natural Beauty, it continues to work with relevant partners to secure the best possible outcome for the environment despite the decision.

Over the past ten years we have worked hard to reduce the impact of HS2 on the landscape. Just some of our work includes:

  • Influencing design and work on projects to maintain green corridors, and provide wildlife biodiversity and connectivity through the HS2 Review Group
  • Submitting funding applications for environmental projects to mitigate damage. In 2019 we secured funding from BLEF to develop a programme to support local businesses and tourism affected by HS2. In addition, our Chalk, Cherries and Chairs Landscape Partnership also includes a number of projects around the central Chilterns area that will improve and enhance wildlife habitats and heritage of the area.

HS2 in the Chilterns AONB

The impact of HS2 on the Chilterns AONB

With the plans developed, we now know there will be a heavy environmental cost of HS2 on the Chilterns.

Useful information and archive

Find the latest HS2 news, links and information and access papers and reports from our archive.

The Chilterns AONB Review Group

Discover the work of the Chilterns AONB Review Group, established in 2016 to support identification and delivery of local HS2 mitigation measures.

Latest HS2 news

Chilterns Conservation Board’s statement on the Little Missenden sink hole above the HS2 tunnelling operations

The Chilterns Conservation Board (CCB) is alarmed by reports that a 6m wide and 5m deep sinkhole appeared above the...

HS2 Update, March 2022

The Chilterns Conservation Board is working to hold HS2 to account and to minimise the effects of its construction works on the Chilterns landscape.

HS2 Update, December 2021

Read about how we're holding HS2 to account

Chilterns ANOB
Chilterns ANOB

Chilterns AONB Boundary Review

We are are working closely with Natural England to explore the case for and against extending the boundary of the protected area of the Chilterns AONB. Find out about the project, and how this could benefit people and the landscape on our Boundary Review page.
Chilterns ANOB

Chilterns AONB Management Plan

The Chilterns AONB Management Plan 2019-24: Caring for the Chilterns forever and for everyone contains a comprehensive summary of the key issues facing the AONB and the management policies and actions needed to conserve this special place.