Embraced in Recycled Steel Bastiment de burèus by Nobuaki Miyashita

Embraced in Recycled Steel Bastiment de burèus by Nobuaki Miyashita is a highly esteemed winner of the very prestigious 2025 A' Design Award d'Aur in Arquitectura Competition Category.

AurArquitectura· 2025

Embraced in Recycled Steel Bastiment de burèus

by Nobuaki Miyashita

Client: Kyoei Steel Ltd

A' Design Award d'Aur Winner in Arquitectura Category

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Verified Award Winner

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The Design

About Embraced in Recycled Steel Bastiment de burèus

Embraced in Recycled Steel es un bastiment de burèus per una entrepresa de reciclatge d'acièr a Yamaguchi, al Japon. L'exterior adòpta una estructura empilada inspirada de las bilhetas d'acièr, amb de revestiments especials que crèan una variacion de textura. L'interior utiliza d'acièr en angle, de barras platas e de barras d'acièr desformadas coma materials de finicion, en botant los elements estructurals a la vista. De motius de còdis de barras e de còdis QR s'espandisson dins los espacis, e de luminàrias LED sens jonchura en forma de bilhetas son combinadas amb de lamas d'acièr al plafon. Lo bastiment a quatre estatges en dessús del sòl e una nautor maximala de 19,9 mètres.

The Recognition

About the A' Design Award d'Aur

Embraced in Recycled Steel Bastiment de burèus a ganhat la distincion A' Design Award d'Aur, una reconeissença immensament prestigiosa acordada a de designs de primièra qualitat, meravilhoses e excellents. Los ganhaires de l'Aur son de creacions extrèmament innovantas, visionàrias e esbleugissentas, que reflectisson lo prodigi, la sabença e la proeça de lors designers. S'espèra que Embraced in Recycled Steel Bastiment de burèus siá una invencion fòrça lausada, que dintra de tendéncias e monumentala, que provesís un valor sens precedent. Aqueste design ganhaire de la distincion A' Design Award d'Aur es un projècte espectaclós e respectat, que fa un grand ben e fa avançar las frontièras de l'art, de la sciéncia, del design e de la tecnologia. Embraced in Recycled Steel Bastiment de burèus crea de sentiments intensos de desirs, evòca la passion, encoratja la creativitat e fascina.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: Kyoei Steel recycles steel scrap using electric furnaces. The new Yamaguchi office themed An Office Embraced in Recycled Steel embodies this transformation. The exterior draws from stacked billets while the interior uses locally sourced angle steel and rebars. Barcode and QR code designs extend through office spaces, harmonizing steel and light. The lighting design transforms these patterns into three dimensional forms, adding depth and movement, symbolizing Kyoei Steel’s identity and vision.
Dimensions & Packaging: Site Area: 108,045.44 Square meters
Building Area: 1,091.12 Square meters
Total Floor Area: 3,931.89 Square meters
Structure: RC
Number of Floors: 4 above ground
Maximum Height: 19.9 m
Eaves Height: 16.5 m
Floor Height: 3.9 m
Ceiling Height: 2.9 m
Tags: architecture, office, lighting design, recycled steel, sustainable design
Production Technology: The building’s exterior adopts a stacked structure inspired by Kyoei Steel’s billets, with special coatings creating textural variations symbolizing recycling. The interior features angle steel, flat bars, and deformed steel bars as finish materials, bringing typically hidden structural elements into the architectural expression. The lighting design integrates seamless LED fixtures shaped like billets, harmonizing with steel louvers on the ceiling for a cohesive lighting environment.
Design Challenge: The main challenge was to create an architecture that symbolizes the company’s identity without compromising factory functionality. The project required extensive testing to utilize steel materials not only structurally but also aesthetically. Special focus was given to the QR code-inspired vertical design and lighting integration, which underwent multiple prototypes and refinements to achieve the desired effect.
Research: Type of Research: Architectural design research
Research Objectives: Exploring recycled steel’s potential in architecture
Methodology: Material analysis and spatial testing
Data Collection: Mock-ups and lighting simulations
Participants: Designers, engineers, technical experts
Results: The building serves as a showroom, demonstrating recycled steel’s architectural potential
Impact: Set a benchmark for sustainable design while enhancing corporate branding and public awareness
Inspiration: The design reflects the process of transforming recycled scrap metal into new steel products, embodying Kyoei Steel’s commitment to sustainability. The stacked billet-inspired structure symbolizes the recycling and regeneration of steel resources, visually expressing the company's dedication. The interior incorporates the company’s own steel materials, such as angle steel, rebars, and flat bars, ensuring their strength, durability, and aesthetic appeal are fully showcased throughout the space.
Project Duration: The project commenced in early 2022 in Yamaguchi, Japan, with design and planning phases focused on integrating Kyoei Steel’s identity into the architecture. Construction began in mid-2023, aiming to unify office functions while enhancing operational efficiency and employee engagement. The office was completed in early 2024, creating a sustainable workspace that embodies the company’s commitment to steel recycling and innovation.
Operation Flow: This building visualizes Kyoei Steel’s recycling process, transforming the journey of recycled scrap metal into an architectural experience. The stacked billet-inspired exterior symbolizes material circulation, while the interior features angle steel and deformed bars as finish materials. The stairwell integrates a QR code motif with lighting, creating an interplay of steel and light that intuitively communicates the company’s technology and commitment to sustainability.
Patents: N/A
Team Members: N/A
Image Credits: Image #1,#3,#4 : Photographer Nobuaki Miyashita Variations, 2024
Image #2,#5 : Photographer Sato Kenta, Variations, 2024.