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Barn House, St Kew, Cornwall

Although this original barn conversion was carried out during the 1980’s and gradually extended over the years, its current owners decided to further extend and thermally improve its performance.

Atelier 3’s brief was to design an extension that created a sustainable family home without detracting from the original barn conversion and neighbouring buildings in its rural setting.


The extension complemented the existing property by using traditional techniques, local materials such as reclaimed Delabole slate laid with diminishing coursing and locally quarried stone.

The extension enabled the creation of a garage, a new utility and downstairs wc/shower room, a new family dining and living room together with a family kitchen.  A fully functioning family bathroom, a new double bedroom with shower en suite and a master bedroom were created at first floor level.  A garden room was also included to act as a solar collector.

The landscaping was enhanced with a new area of terracing which enabled a greater interaction between the reconfigured ground floor rooms and the outside.

The modifications to the external appearance improved the balance and proportions of the original dwelling and the later extensions give the desired impression that this property has evolved over a considerable length of time.