We aimed for such an architecture that pulls people and involves them into a spiral and sublimates them. It is located in Higashiosaka City, Japan, where the structure of lowertown is concentrated, along the elevated railroad track that was once a freight line. We have created a plan centered around a coffee roasting machine in such a glamorous city where people’s activities and lives intersect with chaos, and the flow of people rolls up around it.
▼项目与周边环境鸟瞰，aerial view of the project and surrounding environment © Tomoki Hahakura
A bakery workshop and a cafe counter are also settled on the square core in the center of the building, which serves as a production site. Customers and employees, or those who live and work in the surrounding area, gather to the core and rise around it. The building is transparent, the swirling slopes and the core are visualized, and the functions and the flow of people make sense in the surrounding area. Once you see this spiral, you will be attracted to the inside of the building.
▼咖啡馆外观，exterior view of the project © Osamu Morishita
▼概念示意图，concept diagram © Osamu Morishita Architect & Associates
From the beginning, the founder intended to set up cafe and high-class bread workshop as a new business and inhabit at the top of them in secret. He required a view like a scenery in person’s mind’s eyes composed of vortex of human behavior rising. It will encourage human mind and suit to Instagram’s topic. The idea how to create the architecture is just putting the cubic core as a production area, surrounding it with human flow and sublimating them. That’s all.
▼由楼梯俯瞰底层空间，viewing the ground floor from the staircase © Katsu Tanaka
▼楼梯，staircase © Katsu Tanaka
Instead of creating a shape, I have been conscious of the events that appear around there. However, a certain order is required to establish the flow. The floor height standards of the core and the slope were 4.5 m and 3.0 m, and the ratio of the sloping was set to 1/12. The slope is supported by a cantilever from the core, and the width and gradient of the slope can be flexibly adjusted no matter what function comes.
▼正方体核心体量的底层生产区，The bottom production area of the cube core volume © Katsu Tanaka
I am strongly aware of the flow of the environment as well as the flow of functions and people. The sun’s rays that enter through the glass heat the floor and air volume of the slope, creating an updraft. Cool outside air is created on the surface of the earth and invades through the ground window of the core, rises vigorously through the atrium gaps between the central core and the sloping inside the building, and is exhausted from the ventilation window and the movable window at the top of the core.
▼剖面图 – 被动式通风策略，section – passive ventilation strategy © Osamu Morishita Architect & Associates
We are always creating a mechanism to create circulation between the inside of the building and the outside air. The sunlight does not break the indoor environment hotly, but circulate the air and become an engine that promotes natural ventilation. In winter, the solar altitude is low, especially the reception of sunlight is large, the south side of the slope becomes a sunroom, and when the ventilation window is opened, the air is warmed to the extent that a mirage dances on the window.
▼顶层私人办公室/生活空间 – 大面积的玻璃创造出通透性与理想采光，Top floor private office/living space – large areas of glazing create transparency and ideal light © Katsu Tanaka
The slope floor material was very cheap, just a structural plywood put on the steal deck plate, but oil stain was applied on it. We painted on the floor as if it were a canvas. There is a whirlpool of rising diversity. With the painting, the surface of the floor fascinates people.
▼坡道 – 地面上涂鸦增加了视觉与空间丰富度，Slopes – Graffiti on the ground adds visual and spatial richness © Tomoki Hahakura
All functions are exposed and visualized. Each function appears as a lively and rich unified body. People are attracted to where they can feel meaningful and freedom. We created “naked Spiral around Functions”, an architecture of flow where everything gathers from the surrounding area and swirls and flies as it is.
▼夜景，night view ©Tomoki Hahakura
▼立面夜景，night view of the facade © Tomoki Hahakura
▼底层平面图，1F plan © Osamu Morishita Architect & Associates
▼二层平面图，2LF plan © Osamu Morishita Architect & Associates
▼夹层平面图，2UF plan © Osamu Morishita Architect & Associates
▼立面图，elevations © Osamu Morishita Architect & Associates
Design: Osamu Morishita Architect & Associates
Materials: Steel / Glass
Category: Café / Office / Residential Architecture / Hospitality
Area: 729 m²
Photographs: Katsu Tanaka, Tomoki Hahakura