
'outdoors indoors' by be-fun design + EANA in shinagawa, tokyo, japan
all images courtesy be-fun design
image © hiroyuki hirai
japanese architecture practice be-fun design (tsuyoshi shindo) has collaborated with kohei iwasaki
and tota abe of EANA to design 'outdoors indoors', a small two-storey dwelling for a couple in
shinagawa-ku, tokyo, japan. aiming to create a space that honestly reflected the clients' activity-driven
lifestyles, the design features a vertically-open communal area that is topped off by a rock-climbing cove.

within context
image © hiroyuki hirai
situated on a residential plot measuring approximately 36 m2, the exterior form lends no views
of the interior from the street level. the free-standing volume maintains the height and scale of
the surrounding structures while contrasting the area's palette with its white modern finish.
the roof features a slightly smaller form that steps in from the perimeter to create strips of
sky lights for the level below.

street elevation
image © hiroyuki hirai
starting with a partially-sunken in 'warehouse' level, the layout revolves around a central bathroom
which sits elevated on a storage unit. bands of void space above the staircase ensure natural sunlight
to the lower levels of the house. arranged as one open space, the kitchen, living, and dining room are
located on the second floor which opens up to a generous stretch of glazing and terrace. the rock climbing
wall leads up to a subtly tapering form which hovers over the communal area. playful and contrasting
in its presence, the hollowed volume connects to a small rooftop terrace which can be accessed by
a climbing ladder.

from terrace
image © hiroyuki hirai

(left) interior view of living room
(right) panels of structural glass in floor
images © hiroyuki hirai

from kitchen
image © hiroyuki hirai

image © hiroyuki hirai

views of rock-climbing wall
images © hiroyuki hirai

sky lights
image © hiroyuki hirai

washroom
image © hiroyuki hirai

stairway
image © hiroyuki hirai

(left) 'warehouse' level
(right) leading up to living/dining/kitchen
images © hiroyuki hirai

view of 'warehouse' level from washroom
image © hiroyuki hirai

front elevation at night
image © hiroyuki hirai

image © hiroyuki hirai

3D model of exterior

interior render



floor plan / level 0
(1) doma
(2) bathroom
(3) storage room

floor plan / level +1
(4) living room
(5) kitchen
(6) engawa

floor plan / roof level

longitudinal section
(1) doma
(3) storage room
(4) living room
(6) engawa

cross section
(2) bathroom
(4) living room

structural diagram
project info:
site area: 68.25 m2
building surface: 36 m2
total floor surface: 72 m2
storeys: 2
structural material: wood
architects: tsuyoshi shindo / be-fun design + kohei iwasaki, tota abe /EANA
structural design: kenji nawa
construction: heiseikensetu
nice project, could please anyone explain to me why japanese bathrooms are transparent, is there any cultural background or is it kind of design fashion? Please I just want to understand why.
hope some day i will find such open minded and forward thinking clients that would allow the exploration and experimentation of so fascinating programs.
@myfezazi, not sure if its a cultural thing, but its relatively natural in japan for parents to bathe with their children, use public bath houses, etc. so their notion of “taking a bath” is definitely different from the west. Would love to know for sure myself though.
thank you so much denns, but what about toileting? I mean you can see everything happening there. (would be fantastic the authors of this project could give also some comments on this)
I’ve visited two projects in japan which similarly left the toilet and wash area open (without glass actually!) In both cases they had the equivalent of a shower curtain that could be pulled across when needed. Both of those were in 4-storey apartments with a tiny footprint, so I guess it is one way of making the spaces feel less claustraphobic.
What a fun house! Japanese architecture will always fascinate me.
To myfezazi :
I think the transparent bathroom only applies to this house….plausibly for design purpose. I mean, as far as i know, all humans instinctively wish not to be seen when they are having physiological business… regardless of their cultural background.
Hello everyone from Japan,
Yes, it is just specially designed house to fascinate client, audience etc. if there is, it will be still closed area for parents or couple’s master room which is pretty much western style, hopefully no kids. We don’t have a culture of transparent bathroom in Japan. Onsen, hot springs is still nice, u would love it if once experienced. Still this is nice house!! Does it help?? Enjoy yr day.
totally awesome project~~
wonder how much is the cost