在位于东京世田谷区的住宅区内，要求为一个由年轻夫妇和四个孩子组成的家庭建造新房。大多数邻近的房屋都建在由巨大的混凝土墙形成的平整土地上，以适应丘陵地形。然而，在这个指定地点，没有进行任何建筑准备。因此，土地本身有一个粗糙的坡度–高度差为3.5米–可以使用。几个小区域被挖出来，以充分利用地形的性质。通过这些挖掘，出现了地面的高度差异，并设计了适合每个水平的各种挡土墙。然后，现场出现了融合自然和人工制品的 “五个小挡土墙”。

A new build house for a family of young couples and four children was requested at a site located in residential Setagaya Ward, Tokyo. Most of the neighboring houses were built on top of leveled land formed by enormous concrete walls to accommodate the hilly terrain. However, at this specified site, no preparation for construction had been carried out. Therefore, the earth itself with a rough slope – a height difference of 3.5m – was available. Several small areas were dug out to make the most of the terrain’s nature. Height differences in the ground level emerged by these digs, and various retaining walls to suit each level were designed. Then, “five small retaining walls” that merge nature and artefact appeared on site.

每个挡土墙的形状都不一样，但是，所有的挡土墙都是由L形或T形的肋骨加固的平面结构，并以其厚度来支撑土的负荷，其厚度被设定得尽可能薄。墙体的薄度是为了承认挡土墙–建筑材料–是人类生活空间的重要组成部分，并在房屋的内部实施这种墙体，即使它有地热功能。作为大地和建筑挣扎共存的遗迹，这个出现在它们之间的复杂边界应该能够在这个生活空间提供充满活力的生活时刻。

The shape of each retaining wall differs, however, all follow flat structure reinforced by L or T shaped ribs and support the earth load with its thickness, which is set as thin as possible. The thinness of the wall was an attempt to acknowledge the retaining wall – construction material – as an essential part of human living space, and implement this wall in the interior of the house even with its geothermal feature. As a vestige of the earth and architecture’s struggle for their coexistence, this complex border appeared between them should be able to offer vibrant moments in life at this living space.

建筑物堆叠在这个结构之上，通过地基和挡土墙来追踪地球的形状，并由两层建筑组成，即RC和木材。由下层RC结构产生的空间基本上是地板下的空间，但变成了室内。通过使用它们作为生活区，再加上木材结构的空间，该建筑提供了一个大的中庭，可以容纳不同环境的各种跳楼。

The architecture is stacked on top of this structure, tracing the earth shape by the foundation and retaining walls, and constructed with two layers, which are RC and timber. A space produced by the lower RC structure is basically the underfloor space but turned into an interior. By also using them as living area, together with the space of the timber structure, the building offers one large atrium that accommodates various skip floors with different environments.

挡土墙将稳定的地热带入室内，将挡土墙后面的土壤视为自己的连续层，然而，有目的的是，每个挡土墙的深度是不同的（埋在地下，一半在地下，等等），使环境不均匀。木材结构提供了一个开放的框架，暴露了中庭的梁柱，为将来增加楼层空间提供了一个选择。每个楼层的不同环境和结构被融合到一个生活区。住户首先会感受到每个空间的不同，然后他们可以探索自己的方式，在这个环境中操纵和设计自己的生活。

The retaining walls bring stable geothermal heat to the interior, considering the soil behind them as a continuous layer of its own, however, purposefully, the depth of each retaining wall was varied (buried, half-way under the ground, etc.) to make the environment uneven. The timber structure provides an open frame that exposes the beams in the atrium, offering an option to increase the floor space in the future. The diverse environment and structure from each floor level are blended into one living area. Residents would first feel the differences in each space, and then they can explore their own way to manipulate and design their own life within this environment.

我想把生活在一个 “地方 “的触觉找回来。这不能仅仅通过在地板上涂抹土壤来实现。我相信，只有当我们，作为人类，被地球的结构所支持和包裹，从自然和人工制品的对比中出现时，这种感觉才能实现。对于这所房子，我的目标是建立一个充满了扎根于地球本身的生命力的建筑。 武田清明

I want to bring back the tactile sensation of living in a “place.” It cannot be achieved by just applying soil to the floor. I believe that this sensation can be accomplished only when we, as human beings, are supported and enveloped by the structure of the earth, emerged from the contrast between nature and artefact. For this house, I aimed for an architecture that is filled with the life force rooting the earth itself. Kiyoaki Takeda

Architects: Kiyoaki Takeda Architects
Area: 69 m²
Year: 2020
Photographs: Masaki Hamada (kkpo)
Manufacturers: IOC Flooring, KYOEI LUMBER, Koshii, LIXIL　, Tool Box
Architect In Charge:Kiyoaki Takeda, Miyuki Sakuyama
Structural Engineer:Minoru Fujita
Furniture Design:SIGN CRAFT, Hideo Minamikawa
Translator Of Concept Text:Mami Sayo
City:Setagaya City
Country:Japan