Planning permission granted for sea defence works at 3 sites on St Mary's

[Update 12 June 2023: funding information updated]

We’re pleased to confirm that sea defence works will now progress at 3 sites on St Mary’s, after being granted planning permission at Full Council on 19 October 2021. The sea defences include rock armour and sand dune renourishment and are part of the Climate Adaptation Scilly project, which will help the islands adapt to impacts of climate change.

The public were consulted about the proposals for the works at each site. Consultation occurred online initially, with follow up feedback gathered from respondents and interested parties over the phone and via email. The largest amount of feedback was generated in relation to the Porth Hellick site and a Frequently Asked Questions document has been produced in answer to this high level of interest from the public.

You can find out more about the works planned for each site at the following links:



Porth Hellick

Work is expected to start on all 3 sites in 2022.

The Climate Adaptation Scilly project is funded by the European Regional Development Fund and the Environment Agency.


Funding Information

Climate Adaptation Scilly is a comprehensive package of climate change adaptation measures funded by the Environment Agency and the European Union intended to reduce the impact of the physical impacts of climate change on one of the most vulnerable parts of the United Kingdom. The key risks from sea level rise and reducing rainfall are being managed through coastal defence works against coastal flooding and erosion, and through installation of rainwater harvesting systems for businesses. A community strategy (the Climate Change Adaptation Action Plan) is being developed to help the islands adapt to ongoing changing climate conditions.

European Regional Development Fund

The project is receiving up to £2.2 M of funding from the England European Regional Development Fund (ERDF) as part of the European Structural and Investment Funds Growth Programme 2014-2020.  The Department for Communities and Local Government is the Managing Authority for ERDF. Established by the European Union ERDF funds help local areas stimulate their economic development by investing in projects which will support innovation, businesses, create jobs and local community regenerations.  For more information visit

 European Regional Development Fund, HM Government and Environment Agency logos

Publishing date: 
Friday, 29 October, 2021