This beautifully minimalist space by Will Gamble Architects draws inspiration from Japanese architecture.

exterior of extension inspired by japanese screen - grand designs

Image: Ståle Eriksen

As part of the refurbishment of a Victorian terrace in southwest London, Will Gamble of Will Gamble Architects proposed a twist on the popular Crittall-style look window, drawing on the idea of a Japanese tea house.

This has manifested itself as a rear extension with full height glazed screens, creating the gridded frame typical of a Shoji screen using fine steel-framed bars. This helps the simple, pared-back garden design, created by Garden Club London, become an integral part of the home, softening the dark materials and polished concrete floor. 

A modern bay window 

interior shot of crittall style glass frame doors - grand designs - extension

Image: Ståle Eriksen

The façade of the extension includes a stepped back portion, allowing for the creation of a contemporary window seat in the resulting bay. 

exterior roof with bay window of modern extension - grand designs

Image: Ståle Eriksen

The bay window incorporates seating and hidden, built-in storage. Larch boards have been charred in the style of traditional Japanese technique Shou-Sugi-Ban, preserving the natural grain of the wood while creating a striking jet-black colour and tactile texture. 

Luxury detailing 

modern kitchen with green and brown cabinets and marble surfaces - extension - grand designs

Image: Ståle Eriksen

A new kitchen space has been housed in the extension, designed in collaboration with the interior design practice, Smith & Butler Design. Muted colour offers a softer contrast to the concrete and wood, while marble surfaces and brushed brass metal hardware elevate a feeling of luxury. There’s a large, frameless roof light overhead to add to the space’s natural light. 

pocket door with entertaining bar in reception room - extension - grand designs

Image: Ståle Eriksen

In the existing property, full height oak joinery also hides away another small kitchen space, used as a speakeasy bar for entertaining in the reception room. Clad in green leather, another skylight has been used to bring light into both these spaces. 


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