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Client: Sarah and Kurt

Location: St Agnes, Cornwall

Completed: June 2019

KAST Architects - Trengwydh - External View 1

In collaboration with


Contractor: Gary Hardman and client self build

Structural Engineer: Entos Consulting

Photography: KAST Architects

KAST Architects - Trengwydh - External View 2
KAST Architects - Trengwydh - Timber Detail

We were approached by a local couple who were keen to make the best use of an annexe building located in their garden in St Agnes on the north coast of Cornwall.


Previously used as a shed and wood store, the existing structure was constructed from local stone, slate, corrugated sheeting and blockwork. Working with a structural engineer we identified the elements that were still structurally sound and designed the accommodation around them. The modest timber frame extension houses a self contained flat for a dependent relative and is clad in a combination of local stone, locally sourced rough sawn larch cladding and Cornish slate. The low key design focuses on views into the neighbouring woodland.

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