Japanese architect Junya Ishigami's design in the city of Ube, in southwestern Japan, is a very special project: a space for a French restaurant owner, who is also a friend of the architect. The client, in addition to commissioning it to function as a home and a restaurant at the same time, paid a special interest in the resulting project being a space in communication with nature and that the perception generated to convey the sensation of a space capable of last over time.

Faced with vertigo caused by the immediacy of today's pace of life, the dwelling restaurant must be conceived as a welcoming space in which to invite friends, a space in transit, and at the same time as a space anchored to the earth, lasting in time, that you can pass on to your children and grandchildren. This condition of timelessness marked some of the construction processes of the project, which in part developed as it was being built.

For example, the final texture of the structure was intended to be washed and cleaned, after removing the earth that had served as a mold, the force of the earth mixed with the concrete, generating an atmosphere similar to that of a cave, this made that instead of washing the structure, was left it as a final finish. This change also meant that the furniture, the conditioning of the equipment, the glass or the layout of the plant had to take a different course.
Junya Ishigami and his design team proposed a project in which, although they clearly positioned the restaurant in the north and the house in the south, allowing the spaces to be accessible and independent through the three patios, they were thought so that part of them mixed and functioned dually. Thought as if the guests at the restaurant were actually invited to your home, when the restaurant is closed, the living room serves as a place for the family to spend time or for the children to study.

The construction process was especially careful, complex and delicate. The project was designed through 3D modelling, in which a multitude of data, generated by total station (TS) topographic instruments, were introduced. Modelling that was later transferred to reality manually, excavating by hand and therefore transmitting a sensation of artisanal construction in which imperfections were assumed as part of the project, which accentuated a natural cave environment, in which the three gardens.

The crafting process also contributed to generating a perception of the spaces that had not been foreseen in the 3D visualizations, something that also conditioned the adjustments of the final finishes, such as the fastening of the glass.

The patio gardens not only helped to accentuate the idea of ​​cavernous spaces, of caves in direct contact with nature, for them the installations, pipes and ventilation ducts were deployed so that they do not disturb the house or the restaurant.

House & Restaurant by Junya Ishigami. Photograph courtesy of Junya Ishigami Associates.


House & Restaurant by Junya Ishigami. Photograph courtesy of Junya Ishigami Associates.


House & Restaurant by Junya Ishigami. Photograph courtesy of Junya Ishigami Associates.
 

Description of project by Junya Ishigami

The project is a residence/restaurant for a French restaurant owner. He is an old friend of mine, and he was the one who commissioned the Tables for a Restaurant. I was asked to design a building as “heavy” as possible. “I want an architecture whose heaviness would increase with time,” he said. “It cannot be artificially smooth but rather something with the roughness of nature. Authentic cuisines require such a place.” He also told me that “it has to look as if it has been there and will continue to be there for the longest time.” His idea was to create a brand-new long-established restaurant. He was longing for something that is both a house and a restaurant, something he could pass on to his children and grandchildren. Now, he invites guests to the restaurant as he would invite friends to his house, and with someone special, he would let them into the living room or even stay overnight. When the restaurant is closed, the hall serves as a place for the family to spend time or for the children to study. The plan is arranged with the restaurant on the north and the residence on the south. To go back and forth between the spaces, they can walk through any one of the three courtyards that separate them.

In terms of construction, we conceived a process of constantly sharing, accepting, and referencing the un-precisions and accidents that occurred on the site to create an architecture that internalizes natural distortions and uncertainties. More specifically, we dug a hole in the ground to pour concrete, excavated the volume, and fixed glasses to create interior space.


3D details of the ground of House & Restaurant by Junya Ishigami.

First, a mass model that went through countless modifications was converted into 3D data. The 3D coordinate data was then input into a total station (TS) survey instrument to determine the points utilizing a navigation system for pile driving. At the same time, construction workers dug the hole manually for precision while constantly confirming the position and shape on an iPad. Unexpected factors such as growing grass, soil collapsing, or errors due to manual labor were tolerated as much as possible. When the structure was excavated after concrete solidification, it was caked with mud. With the range in geology, the nature and appearance of the soil differed from place to place. We originally planned to wash away the dirt to reveal a gray concrete structure. However, we were impressed by how it looked with soil that we decided to leave it as it is. It was then that we sensed the atmosphere of a cave and decided to redesign the building with a new image.

In designing the interior space, we visualized in 3D images the differences between the design drawings and the actual surface coordinates of the excavated structure. This process revealed new spaces that we had not anticipated to emerge from the overlapping discrepancies. We discovered such places and updated the way to inhabit the architecture accordingly. Thus the architectural design process was flipped, to reference the structure to determine the designs including the placement and number of glass pieces, arrangement and size of the furniture, and positions and details of MEP facilities. For example, where to fix the glass was adjusted based on actual on-site measurements, and 3D scan data was used to verify that the glass would not break by hitting the structure during the construction nor by opening/closing, and to adjust the position of the hinges. To simplify the plumbing route, the water supply and drainage were planned to pass through the three courtyards in a straight line, and faucets, drainage pipes, ventilation ducts, etc. were installed to penetrate the glass windows into the rooms.


Ground floor plan of House & Restaurant by Junya Ishigami.

Accepting uncertainties, the concrete mass will gradually be transformed into architecture through cut-and-try. The owner will start a life here, run a restaurant, and continue to renew this place.

More information

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Architects
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Proyect team
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Taeko Abe, Jaehyub Ko, Takuya Nakayama.
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Collaborators
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Structural engineering.- Jun Sato Structural Engineers (Jun Sato, Yoshihiro Fukushima).
Lighting/interior designer.- junya.ishigami+associates (Junya Ishigami, Takuya Nakayama).
Lighting advisor.- Izumi Okayasu Lighting Design, (Izumi Okayasu).
Curtain.- Yoko Ando Design (Yoko Ando).
Translation from Japanese.- Fraze Craze.
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Client
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Motonori Hirata.
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Contractors
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MEP.- Echo Mechanical Plumber (Koichi Tashiro).
Landscape.- SOLSO (Yuta Itagaki), Takayama Zoen (Kazuya Kiryu).
Glass.- Meiji Glass Company Limited (Kensuke Kashihara).
Fixture.- Yanagiya (Yoshio Yanagiya).
Furniture.- Gotanda Seisakusho Co., Ltd. (Shigeki Miyamoto, Ai Mizuta).
RC furniture.- I.D.Works (Hayato Takehashi).
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Area
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270,72 sqm.
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Dates
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Design phase.- 7/2013 - 5/2016.
Construction phase.- 11/2016 - 3/2022.
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Location
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Ube, Yamaguchi, Japan.
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Junya Ishigami, born in Tokyo, Japan (1974). Education:
1994 - 1998 Musashi Institute of Technology. 
1998 - 2000 Tokyo National University of Fine Arts and Music.

Professional experience:
 2000 - 2004 Kazuyo Sejima + Associates. 
In 2004 he set up his own firm, "Junya Ishigami + Associates". Junya Ishigami questions common understanding of architecture. This allows him to create things beyond trends, established principles and definitions, develop new structures, new spaces and organize the environment differently. He hopes his projects will be able to change the lifestyle of modern architecture radically and fill it with new values.

Main projects:
 Table. Tokyo, Japan, 2005
T. project. (First prize in residential architecture project sponsored by the Tokyo Electric Power Company). Tokyo, Japan, 2005 
Balloon. Tokyo, Japan, 2007
Kanagawa Institute of Technology KAIT kobo. Kanagawa, Japan, 2008
Yohji Yamamoto New York Gansevoort street store, NY, USA, 2008.

Main awards:
 “low chair and round table” were acquired by the Pompidou Centre. Milan, Italy, 2004, 
SD Prize for “small garden of row house”. Japan, 2005, 
Kirin Prize for “Table” . Tokyo , Japan, 2005, 
First prize in residential architecture project for “t project”. Tokyo, Japan, 2005, 
“Table” shown at the Basel Art Fair by Gallery Koyanagi in 2006 and acquired by the Israel Museum. Basel , Swiss, 2006.

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