Yoshinogawa Valley Adnewyddu Adeilad Pencadlys gan Wataru Sato

Mae Yoshinogawa Valley Adnewyddu Adeilad Pencadlys gan Wataru Sato yn enillydd uchel ei barch o'r 2026 Gwobr Efydd A' Design Award mawreddog iawn yng Nghategori Cystadleuaeth Pensaernïaeth.

EfyddPensaernïaeth· 2026

Yoshinogawa Valley Adnewyddu Adeilad Pencadlys

gan Wataru Sato

Cleient: KITAOKA Group

Enillydd Gwobr Efydd A' Design Award yn y Categori Pensaernïaeth

7,414

Enillydd Gwobr Wedi'i Wirio

Gwirio Statws Gwobr ar gyfer #175868

Ymweld â'r Wefan Gweld yn A' Design Award Datganiad i'r Wasg Bathodyn Gwobr

Lliwiau

Y Dyluniad

Am Yoshinogawa Valley Adnewyddu Adeilad Pencadlys

Mae'r prosiect hwn yn adnewyddiad o adeilad swyddfa parod 40 mlwydd oed heb ei ddymchwel. Mae gwagle llinol 50 metr wedi'i fewnosod yng nghanol y strwythur presennol, wedi'i alinio ag echel dwyrain-gorllewin Afon Yoshino, gan ad-drefnu'r adeilad yn ddwy adain gogledd-de. Wedi'i enwi'n Ddyffryn Afon Yoshino, mae'r weithred ofodol hon yn ffurfio asgwrn cefn y bensaernïaeth. Mae ffenestr do sy'n wynebu'r gogledd yn darparu golau dydd sefydlog, tra bo awyru goddefol yn cael ei gynhyrchu drwy wahaniaethau uchder a gwasgedd. Drwy ad-drefnu'r adeilad, mae'r prosiect yn osgoi rhannu'r gwerthoedd y mae'n eu cynnal.

Y Gydnabyddiaeth

Am y Gwobr Efydd A' Design Award

Mae Yoshinogawa Valley Adnewyddu Adeilad Pencadlys yn enillydd Gwobr Efydd A' Design Award, cydnabyddiaeth hynod fawreddog a roddir i ddyluniadau rhagorol sydd yn nodedig am greadigrwydd, dyfeisgarwch a chraffter. Mae enillwyr Efydd yn arteffactau medrus iawn a thrawiadol o greadigol sydd yn dilysu profiad helaeth, dychymyg a dyfeisgarwch eu dylunwyr. Disgwylir i Yoshinogawa Valley Adnewyddu Adeilad Pencadlys fod yn wrthrych uchel ei fri, a edmygir ac a anwylir, sydd yn nodedig o broffesiynol ac arloesol. Mae'r dyluniad buddugol hwn o Wobr Efydd A' Design Award yn ymgorffori arferion gorau mewn celf, gwyddoniaeth, dylunio a thechnoleg, ac yn rhagorol am ei sylw i fanylion. Mae Yoshinogawa Valley Adnewyddu Adeilad Pencadlys yn bodloni anghenion yn odidog, yn cyffwrdd â dyheadau, yn swyno teimladau ac yn apelio at chwilfrydedd.

Y Tu Ôl i'r Dyluniad

Pecyn i'r Wasg

Credydau, aelodau tîm a manylion technegol a ddarparwyd gan y dylunydd.

Priodweddau Unigryw: 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.
Dimensiynau a Phecynnu: 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.
Tagiau: Prefabricated office renovation, open lounge, atrium and skylight, regional architecture, nature-inspired workspace, Yoshino River
Technoleg Cynhyrchu: 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.
Her Dylunio: 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.
Ymchwil: 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.
Ysbrydoliaeth: 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.
Hyd y Prosiect: The project started in January 2023 in Miyoshi Town, Tokushima Prefecture, Japan, and was completed in August 2024.
Llif Gweithrediad: 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.
Cydnabyddiaeth Delweddau: 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.