Design-Interview
Kaisen Viking Iroha Restaurant-Innenraum · 20 Fragen
The main idea was to reinterpret Japan’s buffet culture as a refined spatial experience. Inspired by the surrounding city view, ocean imagery, and layers of geological time, the design connects food, movement…
What is the main principle, idea and inspiration behind your design?
The main idea was to reinterpret Japan’s buffet culture as a refined spatial experience. Inspired by the surrounding city view, ocean imagery, and layers of geological time, the design connects food, movement, materiality, and scenery into one continuous dining journey.
What has been your main focus in designing this work? Especially what did you want to achieve?
My main focus was to create a space that feels abundant yet calm. The central buffet counter organizes circulation, while lighting, textures, and ceiling elements help guests move intuitively and enjoy the food in a relaxed atmosphere.
What are your future plans for this award winning design?
I hope this design will continue to be used as a reference for creating restaurant spaces that balance operational efficiency with emotional experience. I also plan to develop this approach further in future hospitality and food hall projects.
How long did it take you to design this particular concept?
The design process took several months, including concept development, spatial planning, material studies, lighting coordination, and detailed design refinement.
Why did you design this particular concept? Was this design commissioned or did you decide to pursuit an inspiration?
This was a commissioned project. The challenge was to create a buffet restaurant that could handle high guest turnover while still offering a memorable and sophisticated dining experience.
Is your design being produced or used by another company, or do you plan to sell or lease the production rights or do you intent to produce your work yourself?
The design was realized as a commercial restaurant and is currently used by the client as an operational dining space.
What made you design this particular type of work?
I have long been interested in restaurant design because it connects spatial design directly with human behavior, emotion, and business performance. A buffet restaurant was especially interesting because circulation and experience are closely linked.
Where there any other designs and/or designers that helped the influence the design of your work?
The design was not directly influenced by a specific designer. Instead, it was shaped by the site context, the client’s business model, Japanese buffet culture, natural materials, and the urban scenery surrounding the restaurant.
Who is the target customer for his design?
The target customers are a wide range of guests, including families, tourists, office workers, and visitors to Tokyo Dome City who seek an enjoyable seafood buffet experience in a comfortable and memorable setting.
What sets this design apart from other similar or resembling concepts?
Unlike typical buffet restaurants that focus mainly on quantity and efficiency, this design combines operational clarity with a strong spatial narrative. The central counter, layered materials, wave-like ceiling, and borrowed city view create a distinctive dining experience.
How did you come up with the name for this design? What does it mean?
“Kaisen Viking Iroha” refers to a seafood buffet restaurant. “Kaisen” means seafood, “Viking” is commonly used in Japan to describe buffet-style dining, and “Iroha” suggests the basics or essence of Japanese culture.
Which design tools did you use when you were working on this project?
The project was developed using architectural drawings, 3D visualization, material samples, lighting studies, and coordination drawings to verify circulation, atmosphere, and construction details.
What is the most unique aspect of your design?
The most unique aspect is the central buffet counter, which works both as an operational core and as a symbolic spatial element. It organizes guest movement while expressing the richness and abundance of the dining experience.
Who did you collaborate with for this design? Did you work with people with technical / specialized skills?
The project was developed in collaboration with the client, construction team, lighting consultants, kitchen equipment specialists, and photographers. Each specialist contributed to realizing both the design concept and practical restaurant operation.
What is the role of technology in this particular design?
Technology supported the design through 3D visualization, lighting simulation, and coordination of construction details. These tools helped verify the spatial atmosphere, guest flow, and technical feasibility before realization.
Is your design influenced by data or analytical research in any way? What kind of research did you conduct for making this design?
The design was influenced by research into guest circulation, buffet operation, seating efficiency, visibility, and the relationship between food display and customer behavior. Site analysis, including the surrounding views, also played an important role.
What are some of the challenges you faced during the design/realization of your concept?
One of the main challenges was the elliptical floor plan, which made circulation and seating layout difficult. By placing the buffet counter at the center, we created a clear loop and transformed the challenging geometry into the identity of the space.
How did you decide to submit your design to an international design competition?
I decided to submit this project to an international design competition because I wanted to evaluate how a Japanese restaurant design, rooted in local dining culture and spatial storytelling, could be understood in a global context.
What did you learn or how did you improve yourself during the designing of this work?
Through this project, I learned how important it is to balance concept, functionality, and emotional experience. A strong restaurant design must not only look beautiful, but also support operation, movement, comfort, and memory.
Any other things you would like to cover that have not been covered in these questions?
This project represents my belief that commercial interiors can be both strategic and poetic. By carefully designing circulation, material expression, lighting, and scenery, a restaurant can become more than a place to eat; it can become a memorable spatial experience.