该地块原本是邻家大花园的一部分，所以不能采用在住宅区建房那样的方法，只能以完善在院子内建房的方式为目标。客户是一位街头艺术家和河童表演者。

The site was originally part of a large garden from its neighbor’s house, therefore the aim of this house was not to build in a residential area, but to build as if in a garden. The owner of the house plays a unique role as a Kappa street performer for his living.

▼场地环境，Site view © Kenya Chiba

占地面积只有23平方米，按照法律规定高度必须控制在8米，所以只能以垂直流线的设计方案来决定整个建筑物的平面和截面。

We initially thought there were only limited options for dealing with the plan and section of the house when we started planning a vertical flow line since a footprint is only about 23 square meters, and the maximum building height is 8 meters according to the building code of land.

▼住宅外观，Exterior view © Kenya Chiba

鉴于此，为了最大限度提升层高，并在整个建筑范围内的小体积里创造出一个宽阔的空间感，楼梯被特意放置在建筑的中心，呈三层排列，并计划在两侧铺置较薄的45毫米厚的地板，在宽度和高度上加以有致地错开。

Therefore, three layered staircases were purposely placed in the center of the house while maximizing the floor height and creating an expansive one-room space within a limited small footprint of the building. 45 mm thin floors were hung on both sides of the staircases while shifting the width and height of them.

▼入口和玄关区域，Entrance area © Kenya Chiba

▼楼梯被特意放置在建筑的中心 © Kenya Chiba

Staircases were purposely placed in the center of the house