架构师提供的文本描述。主要概念是“东京的螺旋廊”-挑战开放(或关闭)城市环境的隐私。“门廊”对于日本传统住宅来说是必不可少的，因此它是所有人最怀旧的空间之一。最近在东京(JPN)，建造一些建筑的土地非常昂贵。因此，这使得我们放弃了创造“门廊”。

Text description provided by the architects. The main concept is "A Spiral Porch in tokyo" -challenging to open (or close) the privacy to urban environment. The "Porch" was essential to traditional Japanese house, therefore it is one of the most nostalgic space for all. Recently in Tokyo(JPN), lands for build some architecture are very expensive. And therefore that made us give up to create the "porch".

 ©  Takumi Ota

(小田隆美)

所以我们决定创造全新的恩加瓦。非常狭窄的场地被迫形成三维(螺旋形)工程结构.但是这是一个很好的主意，在这条丝带外创造出“恩川”。丝带在里面和外面形成阴影和阴影。每层楼板、螺旋板、端盖均采用T=4.5mm钢板制成。因此，这房子是非常轻的，以适应地震。不需要粗柱，所有部件配置柔顺和强大的单壳体.

So we decided to create the brand-new Engawa. Very narrow site forced to form 3-dimensional (spiral shaped) engawa structure. But this was a nice idea to create engawa outside of this ribbon. The ribbon makes shade and shadow in inside and outside. And each floor slabs, spirals, end roof are entirely made from steel plate T=4.5mm. So this house is very light weight to be supple for earthquake. No thick columns needed, all parts configure supple and strong mono-coque body.