Carlyon Beach will be a new high end beachfront mixed use development located on the south Cornish coast. Jubb have supported a revised planning application for Crinnis Bay part of the overall masterplan development providing civil, structural and ground engineering design services.

The Carlyon Bay development comprises 511 residential apartments, mews and beach houses, retail, restaurant and leisure facilities, new landscaping and significant infrastructure improvements.  The beach is to remain publicly accessible by the wider community to support and encourage year-round use.

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Carlyon Bay is set within the heart of St Austell Bay, and stretches to almost 2 miles across its three beach bays of Crinnis, Shorthorn and Polgaver. Although these beaches have existed for many years, they are man-made with its course beach material formed from ‘stent’ a mixture of waste from the tin and china clay industries.

Jubb have historically provided civil and structural engineering design services for the development of Shorthorn Bay but more recently, have been providing further design assistance to bring forward a revised masterplan and reserved matter planning application related to Crinnis Bay.

The project requires the need for extensive food risk and coastal engineering review resulting in extensive infrastructure improvements including construction of new sea defences and cliff stabilisation works to safeguard and future proof the sites long-term use and preservation.

Our geotechnical team have provided specialist engineering planning services and undertaken detailed inspections of the existing cliffs to develop detailed risk assessments to define suitable remedial works and protections measures. Our other teams have provided design support and engineering strategy advice related to Drainage, Highways and Structures for the new development.

The proposed apartment buildings comprise of a variety of living options including block apartments and lower-level mews houses. As a result, different structural solutions have been developed to maximise structural benefits. This has included coordinating the structural grid layout of undercroft parking with upper apartments to eliminate transfer structures, as well as adopted more traditional build methods to lower storey structures to offer a cost saving.

Other structural services have included the condition inspection of existing bridge structures, and the proposed design of new footbridges and walkways over the new sea defences to enable improved beach access.

Access routes to the site have also been careful considered with new provisions incorporated including road widening and improved access routes for emergency and maintenance vehicles. Future phases of construction have also been carefully considered within the design process resulting in the potential use of a nearby site as a marshalling yard to reduce the impact of large vehicles on local roads.