Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar eftir Wataru Sato

Hönnunarverkið Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar eftir Wataru Sato er hávirt verðlaunaverk sem hlaut hin virtu 2026 A' Design Award í bronsi verðlaun í keppnisflokknum Arkitektúr, bygginga- og mannvirkjahönnun.

BronsArkitektúr· 2026

Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar

eftir Wataru Sato

Viðskiptavinur: KITAOKA Group

Handhafi A' Design Award í bronsi í flokknum Arkitektúr

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Litir

Hönnunin

Um Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar

Þetta verkefni er endurbygging á 40 ára gamalli forsmíðaðri skrifstofubyggingu án niðurrifs. 50 metra löngu línulegu tómarými er komið fyrir í miðju núverandi byggingar, í samræmi við austur-vestur ás Yoshino-árinnar, og skipuleggur bygginguna að nýju í tvær álmur til norðurs og suðurs. Þessi rýmislega aðgerð, sem nefnd er Yoshino River Valley, myndar burðarás byggingarlistarinnar. Þakgluggi sem snýr í norður veitir stöðuga dagsbirtu, en óvirk loftræsting myndast með hæðar- og þrýstingsmun. Með því að endurskipuleggja bygginguna kemur verkefnið í veg fyrir að þau verðmæti sem hún styður við séu aðskilin.

Viðurkenningin

Um A' Design Award í bronsi

Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar vann A' Design Award í bronsi, mjög virta viðurkenningu sem veitt er framúrskarandi hönnunarverkum sem einkennast af sköpunargáfu, hugvitssemi og skarpskyggni. Sigurvegarar í bronsi eru ríkulega leiknir og áberandi skapandi gripir sem staðfesta víðtæka reynslu, ímyndunarafl og útsjónarsemi hönnuða sinna. Þess er vænst að Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar sé mjög metinn, dáður og elskaður hlutur sem er einstaklega fagmannlegur og nýstárlegur. Þetta hönnunarverk sem vann A' Design Award í bronsi felur í sér bestu starfsvenjur í list, vísindum, hönnun og tækni og er framúrskarandi fyrir athygli sína á smáatriðum. Yoshinogawa Valley Endurbygging höfuðstöðvabyggingar fullnægir þörfum á dásamlegan hátt, snertir langanir, heillar tilfinningar og vekur forvitni.

Á bak við hönnunina

Fjölmiðlapakki

Heimildir, hópmeðlimir og tæknilegar upplýsingar frá hönnuðinum.

Einstakar eiginleikar: 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.
Stærðir og umbúðir: 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.
Merki: Prefabricated office renovation, open lounge, atrium and skylight, regional architecture, nature-inspired workspace, Yoshino River
Framleiðslutækni: 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.
Hönnunaráskorun: 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.
Rannsóknir: 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.
Innblástur: 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.
Lengd verkefnis: The project started in January 2023 in Miyoshi Town, Tokushima Prefecture, Japan, and was completed in August 2024.
Verkflæði: 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.
Myndheimildir: 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.