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Scope of Build: A new-build suspended deck and a highly energy-efficient summerhouse, with timber frame construction and high levels of insulation, and a mechanical ventilation unit with heat recovery.

Outcome: Our clients wanted to replace an existing and uninspiring narrow detached garage with a habitable space, making the most of views of their dramatic, steep garden, achieved with large expanses of triple-glazed corner windows. The summerhouse makes for a warm, bright space floating amongst tree canopies, linking with the main house with a generous, bare-foot friendly outdoor space.

Cost: £150,000 (including fees)

Cost per m²: £3,000

Design Time: 3 months

Build Time: 11 months

Contractor: Holyoak Projects

Sustainability: Ecospheric

Landscape Architect: Alice Ferguson Garden Design

Photography: Catherine EastAlice Ferguson

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