House in Sakuragawa / Suppose Design Office


Architects: Suppose Design Office
Location: Sakuragawa, Itabashi, Tokyo,
Program: Personal house
Site area: 50 sqm
Building area: 33.16 sqm
Total floor area: 91.01 sqm
Photographs: Toshiyuki Yano from Nacasa&Partners Inc.

ground floor plan
ground floor plan

The site is a 50 square meter corner lot situated in a residential area of Tokyo’s Itabashi city.

To the South, across the road, is a park, promising an environment in which the four seasons can vividly be felt. Here we sought to build an expansive home in which a family of two parents, a child, a grandmother, and a dog would be able to live comfortably.


Though the site is small, from the the beginning we wanted to build a house that felt big, as if even the park was your own.From the aperture in the 2nd floor living space, with it’s bay windows and bench that make you feel as though you are sitting in the park and where you can keep an eye on your children playing outside, to the split levels that allow you to communicate easily with family members and keep every place in the house connected, we have designed a space with a sense of security and peacefulness.


Certainly the house is not lavishly decorated, but we think we have created a home in which people’s lives can be enriched by interacting with one another.

While architecture that places the most importance on facilities and efficiency has its value, we think with this timeless design that emphasizes communication and security you will be able to find new richness in your life.

Cite: "House in Sakuragawa / Suppose Design Office" 17 Aug 2009. ArchDaily. Accessed 18 Sep 2014. <>


  1. Thumb up Thumb down 0

    (1) why not engage the park more; (2) unique form, but the wall surrounding the carport seems under-designed, almost like an afterthought, relative to the cohesiveness of the rest of the home. Otherwise, well done; it really is an efficient / un-boring use of an exceedingly tight lot.

  2. Thumb up Thumb down 0

    Why did you remove my comment? The trend toward privateless family residential design is dumbfounding. Why such squeamish, prudish denial of what private areas are used for, dear (social) editor?

  3. Thumb up Thumb down 0

    Good, I like it. Minimalistic, as expected in Tokyo, but neat. Exterior is very presentable and proportions are interesting. i dont comment on interior as it matter of Japanese culture as guess, but I like those clean surfaces. Regards, Lumiges

  4. Thumb up Thumb down 0

    Nice levels connections
    I`m from argentina, this house would be imposible in a open public residential area, (security and privacy problems), This shows how advanced are japanese society are in social and security. Admire that.

  5. Thumb up Thumb down 0

    Very interesting, indeed. Could only work for a family with raw fish based meals. No yaksoba, no sir: the upper romms would get smoked!!!

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      the german is concerned about his car….

      [japanese cars are affordable. this is why people don't steal them - they buy them.]

    • Thumb up Thumb down 0

      Japan has one of the lowest crime rates in any developed
      country. I lost my wallet in Tokyo with more than 300 U$ and
      it was returned to me with everything inside.

      The car is safe…

    • Thumb up Thumb down 0

      What are you shouting? Trying to convince us in the face of one of the lowest, if not so, crime rates in the world?

      Immobilisers, central locking, the owners mere feet/metres away, in a country so-o-o-o-o-o profoundly predicated on doing the right thing = not stealing and THAT’s your take on the architecture?

      Nothing on the dangerous split levels, total lack of child/elderly safety precautions, excellent use of a tiny space or lovely interplay of the floors & BIG window upstairs? Strange…

  6. Thumb up Thumb down 0

    I’d like to see the floorplans… do you not have them anymore?
    I really like this blog!

  7. Thumb up Thumb down 0

    I liked exteriors. It’s good idea, but many houses, in some case with “similar” ideas, are in Shybuya District. Interior – the best place, in my opinion, is linving space. In others spaces no privacy and windows (in this place conceptuality is not good).

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