PROJECT

PROJECT 2025.10.28

天王寺の2世帯住宅 / 藤原・室建築設計事務所

スキマを渡る光が、暮らしに奥行きを重ねる住宅

大阪の都市部にある住宅街の敷地。密集地で裏手の敷地は高い擁壁の上にある。二世帯住宅で、プライバシーを守りながらも、街と繋がる植栽があることが希望であった。敷地周囲の建て替わりなども想定する中で、周辺の目線を遮りながらも光を取り込みつつ、広がりを感じさせる空間を計画したいと考えた。

建物は周辺に対して閉ざしながらも、ガラス、コンクリート、吹き付けなど、色彩やテクスチャーに光を反射させ、実際の視界に収まるその先に、空間が続いて見えるような、視覚的な広がりや奥行き感などを実在しないところまでイメージさせることを心掛けた。木やコンクリート、左官といったマテリアルに分けられたボリュームをずらして配置し、隙間から光や風を取り込む構成としている。

長い植栽があるアプローチから建物に入り、1階から3階への吹き抜けには、RCの壁とその壁から片持ちで階段がある。1階には寝室と客間、2階にはLDKと洗面浴室とWC、3階には個室と親世帯の住まいを計画した。

吹き抜けの階段はキッチンやダイニングから見ると、外部階段のように見え、解放感がある。アプローチも3階まで吹き抜けになっていて、立ち並んでいる背の高い植栽をLDKから眺めることができる。

日中は自然光が反射しながら建物の中に差し、夜は建物の明かりが多様な素材に反射しながら漏れ出て、通りからも建物内の奥行きを想像できるように計画している。

（藤原慎太郎、室喜夫）

A residence where light filtering through gaps adds depth to daily life

The site is located in an urban residential area in Osaka. The area around the site is densely built up, and the plot at the back lies on top of a high retaining wall. The client requested a two-generation family home that ensures privacy inside and with greenery that helps connect it to the city.

We wanted to design a space that would feel spacious, letting in light while shielding it from the eyes of the surrounding area while considering the possibility of future rebuilding around the site.

We aimed to create a sense of visual expansion and depth by using the gaps to create slits and other openings while keeping the building closed off from the surrounding environment so that the space appears as if it continues beyond the field of vision.
Through these openings, light reflects off the glass, concrete, and sprayed finish, highlighting their different textures and colors and allowing one to feel the differences in their materiality.

The building is divided into volumes finished in different materials such as wood, concrete, and plaster, which are offset and arranged to let in light and breezes through the gaps between them.

After entering the building via the tree-lined approach, one arrives at the atrium extending from the first to third floors and continues up the staircase cantilevered from the reinforced concrete wall.

The younger generation’s family occupies the first and second floors, with a bedroom and guest room on the first floor and an LDK (living/dining/kitchen) and bathroom/washroom on the second floor. The older generation’s family occupies the third floor, which has a private room, LDK, and bathroom/restroom.

The staircase in the atrium looks like an external staircase from the kitchen and dining room, conveying a sense of liberating openness.

The approach has an open-air atrium that extends to the third floor, and you can see the tall trees along the approach from the LDK.

During the day, natural light reflects into the building. At night, the lights inside the building reflect off the various materials and seep out, allowing passers-by to imagine the depth of the building.

(Shintaro Fujiwara, Yoshio Muro)