Yoshinogawa Valley Renovación del edificio de la sede corporativa de Wataru Sato

El diseño Yoshinogawa Valley Renovación del edificio de la sede corporativa de Wataru Sato es un ganador altamente estimado del prestigioso 2026 A' Design Award de Bronce en la categoría de competición Diseño de Arquitectura, Edificación y Estructuras.

BronceArquitectura· 2026

Yoshinogawa Valley Renovación del edificio de la sede corporativa

de Wataru Sato

Cliente: KITAOKA Group

Ganador del A' Design Award de Bronce en la Categoría Arquitectura

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El Diseño

Acerca de Yoshinogawa Valley Renovación del edificio de la sede corporativa

Este proyecto consiste en la renovación de un edificio de oficinas prefabricado de 40 años de antigüedad, realizada sin demolición. En el centro de la estructura existente se inserta un vacío lineal de 50 metros, alineado con el eje este-oeste del río Yoshino, que reorganiza el edificio en dos alas orientadas al norte y al sur. Denominada Valle del Río Yoshino, esta operación espacial constituye la columna vertebral de la arquitectura. Un lucernario orientado al norte aporta luz natural estable, mientras que la ventilación pasiva se genera mediante diferencias de altura y de presión. Al reorganizar el edificio, el proyecto evita dividir los valores que este sostiene.

El Reconocimiento

Acerca del A' Design Award de Bronce

Yoshinogawa Valley Renovación del edificio de la sede corporativa ha ganado el A' Design Award de Bronce, un reconocimiento sumamente prestigioso concedido a diseños sobresalientes que se distinguen por su creatividad, ingenio y astucia. Los ganadores de Bronce son artefactos ampliamente hábiles y sorprendentemente creativos que acreditan la vasta experiencia, imaginación e ingeniosidad de sus diseñadores. Se espera que Yoshinogawa Valley Renovación del edificio de la sede corporativa sea un objeto muy apreciado, admirado y querido, notablemente profesional e innovador. Este diseño ganador del A' Design Award de Bronce incorpora las mejores prácticas del arte, la ciencia, el diseño y la tecnología, y es excelente por su atención al detalle. Yoshinogawa Valley Renovación del edificio de la sede corporativa satisface espléndidamente las necesidades, toca los deseos, encanta los sentimientos y atrae la curiosidad.

Detrás del Diseño

Kit de Prensa

Créditos, miembros del equipo y detalles técnicos proporcionados por el diseñador.

Propiedades Únicas: Inspired by the Yoshinogawa River, the design translates the structure of a valley into architecture. By dividing the existing building into two volumes and inserting a linear void, a valley-like interior is created.
A 50-meter skylight brings daylight inside, while the void enables ventilation, greenery, and social interaction. This configuration integrates environmental elements into the workplace.
Through renovation, the design reinterprets an existing office and proposes a new spatial model.
Dimensiones y Embalaje: A valley-like void and continuous skylight are introduced at the center of a 50-meter prefabricated office building. The two-story void brings daylight to the ground floor and enhances natural ventilation.
A 7-meter Benjamin fig tree is placed at the center, visible from both levels. Planting along the void forms a layered green environment connected to the exterior.
Existing structure and finishes are retained, creating a composition where old and new materials coexist.
Etiquetas: Prefabricated office renovation, open lounge, atrium and skylight, regional architecture, nature-inspired workspace, Yoshino River
Tecnología de Producción: The project renovates an existing prefabricated office building without demolition.
A central valley-like void integrates daylight, ventilation, and greenery. Continuous skylights provide stable north light, while passive ventilation is driven by height and pressure differences.
Spatial organization is redefined as an environmental system, reducing reliance on mechanical equipment. Existing structure and finishes are retained, forming a layered expression and a sustainable model for reuse.
Desafío de Diseño: The primary challenge was to renew the environmental and social value of a deteriorated prefabricated office without demolition or new construction.
Introducing a skylight and central void into an enclosed structure required coordination of structural, safety, and cost constraints.
Rather than relying on equipment, the design redefines spatial organization as an environmental system.
The project shows that architectural operations can generate new value within existing buildings.
Investigación: This research examines how renovation can achieve environmental performance comparable to new construction.
A skylight and central void introduce daylight and passive ventilation, reducing reliance on mechanical systems.
Monitoring shows that artificial lighting is unnecessary during daytime and HVAC demand is reduced. Annual energy decreased by about 73,000 kWh, with savings of 65% in lighting and 30% in air conditioning.
The project presents a replicable model for sustainable renovation.
Inspiración: The project draws inspiration from the Yoshinogawa River, known as the Mother River of Tokushima.
Rather than referencing its form directly, the design interprets the river as a spatial structure.
By inserting a linear void through the existing building, the architecture transforms the logic of a valley into an interior condition, bringing light, wind, and greenery deep into the space, while also inviting relationships among people, families, and the local community.
Duración del Proyecto: The project started in January 2023 in Miyoshi Town, Tokushima Prefecture, Japan, and was completed in August 2024.
Flujo de Operación: The building transforms a closed office into an open environment accessible to families and the local community.
The central valley acts as a social axis supporting movement, staying, and interaction. The ground floor serves as a shared space, while the upper floor provides flexible work areas.
Users are not assigned fixed workplaces but choose spaces as needed. Through everyday use, the project encourages informal encounters and redefines how work and social life coexist.
Créditos de Imagen: Image #1: Photographer Keita Yamamoto (Architectural Photography), Kitaoka Group Headquarters Renovation, 2024.
Image #2: Photographer Keita Yamamoto (Architectural Photography), Kitaoka Group Headquarters Renovation, 2024.
Image #3: Photographer Keita Yamamoto (Architectural Photography), Kitaoka Group Headquarters Renovation, 2024.
Image #4: Photographer Keita Yamamoto (Architectural Photography), Kitaoka Group Headquarters Renovation, 2024.
Image #5: Photographer Keita Yamamoto (Architectural Photography), Kitaoka Group Headquarters Renovation, 2024.