Yoshinogawa Valley Headquarters Building Renovation
Wataru Sato
Architecture, Building and Structure Design Yoshinogawa Valley Headquarters Building Renovation by Wataru Sato This project is a renovation of a 40-year-old prefabricated office building without demolition. A 50-meter linear void is inserted at the center of the existing structure, aligned with the east-west axis of the Yoshino River, reorganizing the building into two north-south wings. Named Yoshino River Valley, this spatial operation forms the backbone of the architecture. A north-oriented skylight provides stable daylight, while passive ventilation is generated through height and pressure differences. By reorganizing the building, the project avoids dividing the values it supports.
Bronze A' Design Award Winner
Yoshinogawa Valley Headquarters Building Renovation by Wataru Sato is a distinguished winner of the A' Architecture, Building and Structure Design Award. Yoshinogawa Valley Headquarters Building Renovation earned the Bronze A' Design Award in 2026 and is showcased on Architectural Design Winners among other outstanding designs. Explore the details of the project, discover other works by Wataru Sato and see why Yoshinogawa Valley Headquarters Building Renovation design stands out from its competition.
About Yoshinogawa Valley
Architecture, Building and Structure Design Yoshinogawa Valley Headquarters Building Renovation by Wataru Sato This project is a renovation of a 40-year-old prefabricated office building without demolition. A 50-meter linear void is inserted at the center of the existing structure, aligned with the east-west axis of the Yoshino River, reorganizing the building into two north-south wings. Named Yoshino River Valley, this spatial operation forms the backbone of the architecture. A north-oriented skylight provides stable daylight, while passive ventilation is generated through height and pressure differences. By reorganizing the building, the project avoids dividing the values it supports. Yoshinogawa Valley earned the Bronze A' Design Award, a respected level of recognition in the A' Design Award & Competition. Bronze A' Design Award works combine new ideas with skillful innovations, and are selected by a grand jury, as valuable entries in their respective categories, after fair, just, meritocratic and impartial academic review, where nominated designs are voted following blind peer-review process on pre-established, publicly-available evaluation criteria.
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