
Introduction of our affiliated architects
Leveraging our architect's perspective, we provide comprehensive support from property selection to spatial design proposals. Please see our actual construction examples for more details.

Hitoshi Terakata
Hi design office
View examples of completed projects

Ryoji Nishiyama
Sankaku Architects
View examples of completed projects
Hitoshi Terakata

Hitoshi Terakata
Hitoshi Terakata
Office name: Hi design office
(H.I. Design Office)
Office location: Yodogawa Ward, Osaka City
Official website: https://hi-dsn.com/
We support projects for both domestic and international clients, offering communication in English. Our strength lies in achieving a balance between design and functionality by leveraging digital technology to enhance the consistency between aesthetics and equipment from the initial design stages. We strive to provide visually clear and thorough proposals, helping to bring our clients' ideals to life.
PORTFOLIO




T Nursery School ( Okayama City, Okayama Prefecture)
A bright nursery school with a large opening to the south. It features a functional architectural design with an external circulation route that allows visitors to walk around beneath the building.




T Apartment (Amagasaki City, Hyogo Prefecture)
A multi-unit residential building with a split-level design. It achieves an efficient floor plan while complying with strict height restrictions.



S Office (Otsu City, Shiga Prefecture)
This office features shelving along the walls, creating a natural flow of movement between the reception area, the work area, and the president's office, making effective use of the limited space.
Ryoji Nishiyama

Ryoji Nishiyama
Ryoji Nishiyama
Office name: Sankaku Architects
Office location: Oyamazaki-cho, Otokuni-gun, Kyoto Prefecture
Official website: https://sankakudesign.localinfo.jp/
In addition to designing houses and shops, I also plan and manage co-working spaces and galleries. Prioritizing project feasibility, I use budget and other constraints as a starting point for my designs, creating spaces that respond to and cater to the individual needs of each user.
PORTFOLIO




My Own House I (Mishima District, Osaka Prefecture)
This 38-year-old apartment building underwent a full renovation. The layout was integrated while subtly dividing the space, reconfiguring it into an open environment that allows for a balance between work and life.




Kabura (Kyoto City, Kyoto Prefecture)
An Italian-style space supervised by Restaurant Sio. The seating arrangement that connects the street and the interior, and the walls made of antique fixtures are striking. It has been finished as a warm and inviting space where you can enjoy yourself casually.




sōma (Kyoto City, Kyoto Prefecture)
This is a renovation project for the art hostel Kumagusuku. Centered around a newly created courtyard, the space seamlessly integrates a co-working area, gallery, and dessert restaurant, creating a space where functions naturally intersect.


















