Green Tiles Annexe

GREEN TILES ANNEXE

Green Tiles Annexe is a light and airy free-standing extension to an existing timber bungalow on the back of the dunes at Happisburgh on the Norfolk coast, looking out over fields and wide skies. It replaces an old caravan to provide self-contained cosy accommodation all year round.
Everything – including the timber frame, windows, doors and fixed furniture – was self-built over three years of weekends. It follows breathable construction principles with cellulose and woodfibre insulation. From railway sleeper foundations to furniture made of offcuts, it reuses materials and components as far as possible, giving remarkably low embodied carbon – and cost only £25,000 to build.

Category:
RETROFIT/ EXTENSION

Result:
WINNER

KEY FACTS

Project location: North Norfolk coast

Completion date: July 2019

Building size: 29m2 GIA

Construction cost: £20,500+VAT

Construction type: Timber frame

Building use: Residential

PROJECT TEAM

Architect/designer: Colin Rice

Client: Colin and Margaret Rice

Contractors: Self build with sub-contractors Harry and Gary Christmas (foundations),
Payne Insulation Ltd (insulation installers),
Tony Littlewood (plastering)

Consultant: StructureMode

MATERIALS

Cellulose insulation (Warmcel, PYC)

Wood wax (OSMO)

Woodfibre insulation (Pavatherm, Natural Buildng Technologies)

Douglas fir cladding (Richardson’s Sawmill, Edingthorpe)

Second hand sleepers (RS Timber, North Walsham)

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