T-Square Design Associates

大阪の南に位置するベッドタウンで、息子夫婦と子供３人プラス祖母が暮らす２世帯住宅を計画した。元々住んでいた土地での建替えである。諸条件として、雨に濡れずに並列で車を停められる駐車スペースや、祖母との適度な距離感を保ちつつも、予算面から延べ床面積を出来るだけ抑える事等が与えられた。一般的に２世帯住宅というと、水廻り一式（お風呂や洗面、キッチン等）は２つずつ必要な場合が多く、寝室も家族の人数分が必要になる為、床面積はどうしても増えてしまう。そこで床面積を抑える解決策として、３人分の子供部屋は、道路と敷地の高低差を利用して生まれた縦方向の空間を利用することで８畳のスペースにベッド３つと勉強スペース３つ、収納３つを集約した。これは３兄弟が、たまたま同性だったことも幸いした。４畳×３でも１２畳、６畳×３だと１８畳となるので、かなり床面積を抑えられた。また、この子供部屋は祖母と息子夫婦の空間の間に位置し、親子世帯の適度なバッファーゾーンとしても機能する。今は亡きお父様が建てられた平屋の雰囲気を継承する為に階高を抑えたスキップフロアとしながらも、新たな家族構成に沿ったプランとし、それによって家族間の絆が深まり、またお母様がこれまで紡いできた地域との関係性を尊重し、その関係性がこれからも変わらず、より深まることを意識し、道路と庭との関係性や、ピロティ―の在り方等を検討した。

写真：楠瀬友将

We planned a dual-family house in south of Osaka, for a family of five—husband, wife, three children and grandmother. It was a rebuild project on the land where they had originally lived. The conditions included providing a parking space where cars could be parked side by side without getting wet in the rain, maintaining an appropriate distance from the grandmother, and keeping the total floor area as small as possible due to budget considerations. Generally, in dual-family houses, there is often a need for two sets of water-related facilities (bath, washbasin, kitchen, etc.), as well as bedrooms equal to the number of family members, which inevitably increases the floor area. As a solution to reduce floor area, the three children's rooms were designed using a vertical space created by the height difference between the road and the site, allowing three beds, three study spaces, and three storage areas to be consolidated within an 8-tatami mat space ( approx.13㎡). It was fortunate that the three siblings happened to be of the same gender. Additionally, this children’s room is located between the grandmother’s and parent’s households, also functioning as an appropriate buffer zone between the generations. To inherit the atmosphere of the single-story house built by the late grandfather, we designed a low-height skipped floor plan while creating a plan suited to the new family structure. The intention was to strengthen family bonds while respecting the grandmother's ongoing relationship with the community, and aims to maintain and deepen that relationship over time. We also considered the relationship between the road and the garden, as well as the existance of the pilotis.
- Kizunamian -

Photo：Tomoyuki Kusunose