Welcome to the website of Friends of Cardiff Reservoirs.

The group was set up in 2021 as a natural successor to the Reservoir Action Group (RAG) which had fought for almost two decades to prevent housing development on the Lisvane & Llanishen Reservoirs site. Shortly after the final planning application was defeated in 2015 the site was purchased by Celsa, who use water from Lisvane Reservoir at their steelworks in Cardiff Bay. Dŵr Cymru Welsh Water (DCWW) then took a long lease on the site and carried out major redevelopment work, with the site opening to the public in 2023.

Friends of Cardiff Reservoirs obtained charitable status as a Charitable Incorporated Organisation in 2025.

The purposes of the Friends of Cardiff Reservoirs Charity are:

To promote for the public benefit the conservation, protection and improvement of the physical and natural environment and to protect and conserve fauna and flora and encourage biodiversity within the Lisvane and Llanishen reservoirs.

To advance the education of the public in subjects relating to sustainable development of the natural environment particularly within the Lisvane and Llanishen reservoirs and the protection, enhancement and rehabilitation of the environment and to promote study and research.

Click on the Membership tab above for details of how to join the Friends of Cardiff Reservoirs. Donations to the group are also welcome by clicking on the Donate button opposite.
For details of the proposed works by DCWW follow this link
Dwr Cymru – Lisvane and Llanishen