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  1. ArchDaily
  2. Projects
  3. Houses
  4. United Kingdom
  5. Konishi Gaffney Architects
  6. 2009
  7. The Japanese House / Konishi Gaffney Architects

The Japanese House / Konishi Gaffney Architects

  • 01:00 - 21 March, 2010
The Japanese House / Konishi Gaffney Architects
The Japanese House / Konishi Gaffney Architects, © Alan Craigie
© Alan Craigie

© Alan Craigie © Alan Craigie © Alan Craigie © Kieran Gaffney +29

From the architect. The Japanese House is a modest family house and studio in Edinburgh designed and self built by Konishi Gaffney architects. The site was a small 200sqm brown-field site, formerly a mechanic’s garage, on a back lane in Portobello. The site had planning permission for 2 flats and the process which led to this planning permission had formed a number of restrictions including maximum eaves height and pitch to the roof.

The congested and overlooked nature of the site required careful articulation to provide privacy while still allowing sunshine and passive solar gain into the house. The house turns its back on the lane in order to protect privacy within the house. To the East and the garden three large sliding glass doors all slide out the way to form a 5.5mx2.4m opening to the garden. These windows open the house up to early morning sun, starting the heating cycle.

© Alan Craigie
© Alan Craigie

To the South, to the lane, a large glazed corner brings South light and warmth into the heart of the house. Sunlight falls diagonally through a double height space onto the concrete floor, used for its thermal mass. Strip windows to the ground floor provide privacy and articulate the house as floating over the high garden wall, a typical Portobello arrangement, which continues as a strip around the house. Internally this is expressed as a narrow picture rail shelf at 1800mm.

The house is modest and restrained. It performs an urban function by completing the mews edge and fulfilling what is likely to be an end of terrace role as the adjacent gardens are developed over time. The roof is slate to match the surrounding buildings. It has a chimney - a wood burning stove - to add visual interest to the skyline.

© Alan Craigie
© Alan Craigie

Our intention was to build simply and cheaply. The house is timber framed with a concrete base to protect from vehicular traffic, similarly gutters and downpipes are recessed for protection and to create a clean aesthetic. Details are simple with butt joints and unpretentious junctions and a general avoidance of shadow gaps or cover strips.

Local materials were selected throughout, for example Scottish Oak used for the cladding and sliding glass doors came from a small timber mill less than 20 miles away. Recyclable materials were used where possible such as aluminium gutters and downpipes, and concrete for the floor was selected with careful weighing up of the energy cost versus benefits.

© Kieran Gaffney
© Kieran Gaffney

The house is super insulated and, in spring, summer and autumn while the passive solar cycle functions, requires no heating. In winter under floor heating is proving comfortable and efficient space heating while top up heating is provided by a wood burning stove.

A Japanese House

© Alan Craigie
© Alan Craigie

House 11 was designed while we were living and working in Japan (2004 - 2007) and built upon our return to the UK 2008-2009. As a Scottish - Japanese family we adopted a number of Japanese themes.

© Alan Craigie
© Alan Craigie


We were interested in the variegation of space in Japan from the core of the traditional house to the outside through a series of ambivalent spaces, the internal Engawa and the outer Nuri-en. We used a Nuri-en to make an outside covered space and to blur the distinction between outside and in. The sliding doors are set flush into the concrete which flows outside to a narrow strip. A flat roof overhang protects this space from weather, allows sliding doors with brush seals and facilitates such daily life such as washing to be hung outside on rainy days.

© Kieran Gaffney
© Kieran Gaffney


A key element of the design was a central pillar, called a Dai Koku Bashira 大黒柱. Literally a big 大 black 黒 pillar 柱. This is traditionally located at the centre of the house near the kitchen. The main structural support for rural houses in Japan, it has symbolism rooted in the Shinto religion. Daikoku being the ‘God of wealth, fortune and the five cereals’ was held to reside in the big black pillar. Our Daikokubashira was also to have more pragmatic function: somewhere to carve our 3 children’s heights, to mark time, as they grow up in this new house. The post we used was locally sourced; a 100 year old oak tree which had fallen as a thinning, crowded out by it’s neighbours, about 80 years ago. The sapwood had all rotted away and after man handling the log into position and charring it to blacken it we simply cast it into the polished concrete floor to support the house above.

© Alan Craigie
© Alan Craigie

Kotatsu, Tatami heya & Genkan

We cast in the floor a low concrete kotatsu table with below ground heating. Upstairs we installed 4 tatami mats in space intended for tsukimi or moon viewing. At the entrance we created an Engawa for separation of the private parts of the house from public scrutiny; we have a wide-narrow-wide transition on entering the house and an office space that can be accessed by visitors without entering the house proper.

© Alan Craigie
© Alan Craigie

Shou sugi ban

This traditional cladding technique, using charred cedar boards, was used to waterproof, protect against rot and reduce the flamability of timber cladding. Having experimented by charring our oak post, we continued with this technique on an area of timber cladding at ground floor level and are monitoring its performance.

© Kieran Gaffney
© Kieran Gaffney
Cite: "The Japanese House / Konishi Gaffney Architects" 21 Mar 2010. ArchDaily. Accessed . <>
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Gastón Rojas · August 26, 2010

The Japanese House / Konishi Gaffney Architects | ArchDaily vía @archdaily Espacios simples y honestos

Clare Slifer · March 30, 2010

Great photos ; Really shows off the play of light on the internal walls.

Nicholas Patten · March 23, 2010

I&#39d Live Here: The Japanese House.

zamizo · March 23, 2010

very muji......

... · March 22, 2010

Nice design, but it seems a little worn to be done a year ago

obel1 · March 22, 2010

I love those green sofas!

Kevin Hui · March 22, 2010

I wish you have given as the source reference.

Sophie · March 22, 2010

simplified form and strong Japanese style
I like the details and use of material

Laval_Mosley · March 21, 2010

wow... amazing design, loved the use of the charred cedar boards, was just reading about that recently and thought it would be great in a modern design, and i was right. beautiful both exterior and interior


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