Embraced in Recycled Steel Bulego Barnealdeko Diseinua by Nobuaki Miyashita

Embraced in Recycled Steel Bulego Barnealdeko Diseinua by Nobuaki Miyashita is a highly esteemed winner of the very prestigious 2025 Zilarrezko Saria A' Design Award in Barruko Espazioa eta Erakusketa Diseinua Competition Category.

ZilarBarrualdea· 2025

Embraced in Recycled Steel Bulego Barnealdeko Diseinua

by Nobuaki Miyashita

Client: Kyoei Steel Ltd.

Zilarrezko Saria A' Design Award Winner in Barrualdea Category

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The Design

About Embraced in Recycled Steel Bulego Barnealdeko Diseinua

Embraced in Recycled Steel (Altzairu Birziklatuan Bilduta) Kyoei Steel enpresak hornitutako altzairu birziklatuarekin eraikitako bulego-barnealde bat da. Angelu-altzairuak, armadura-barrak eta barra lauak agerian utzi dira materialaren indarra eta testura nabarmentzeko. Normalean ezkutuan egoten diren egitura-elementuak foku estetiko bihurtzen dira. Barra-kodeen eta QR kodeen motiboak hormen akaberetan eta eskaileretako barandetan zehar hedatzen dira, espazioa enpresaren identitatearekin lotuz. Sabaiko altzairuzko lamek LED argiztapen lineal jarraitua daukate, motiboak nabarmentzen dituena. Barnealde honek berrerabilitako materialek lantoki garaikide batean duten potentziala erakusten du.

The Recognition

About the Zilarrezko Saria A' Design Award

Embraced in Recycled Steel Bulego Barnealdeko Diseinua Zilarrezko Saria A' Design Award irabazlea da, goi-mailako, zoragarriak eta liluragarriak diren diseinuei ematen zaien ezohiko aitorpen prestijiotsua. Zilar-mailako irabazleak lan oso distiratsuak eta sormen biziko lanak dira, beren diseinatzaileen aditutasun, talentu eta zorroztasun nabarmenak erakusten dituztenak. Embraced in Recycled Steel Bulego Barnealdeko Diseinua erakusleiho-lan zoragarria, nabarmenki profesionala eta sakonki berritzailea izatea espero da. Zilarrezko Saria A' Design Award irabazi duen diseinu hau asmakizun oso nabarmena eta miretsia da, onura ekartzen duena eta artearen, zientziaren, diseinuaren eta teknologiaren mugak zabaltzen dituena. Embraced in Recycled Steel Bulego Barnealdeko Diseinua jende askok inbidia duen sorkuntza da, desirak pizten dituena, sentimendu positiboak ekartzen dituena eta harridura eta txunditzea pizten dituena.

Behind the Design

Press Kit

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

Unique Properties: This office interior transforms Kyoei Steel’s recycled steel—angle steel, rebars, and flat bars—into a refined architectural expression. Typically hidden elements become aesthetic highlights, emphasizing material strength and texture. Barcode and QR code motifs extend across the space, visually linking to Kyoei Steel’s corporate identity. Lighting enhances these patterns, creating a dynamic interplay between recycled steel, technology, and light.
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 office interior features angle steel, rebars, and flat bars as exposed materials, emphasizing their structural and aesthetic qualities. Barcode motifs, derived from Kyoei Steel’s website, are embedded in wall finishes and stair railings, linking physical space to digital branding. The ceiling’s steel louvers incorporate billet-shaped seamless LED lighting, reinforcing a cohesive design language that blends recycled materials with innovative illumination.
Design Challenge: The primary challenge was redefining recycled steel’s role in architecture beyond its conventional industrial use. Integrating angle steel, rebars, and flat bars as visible elements required precise detailing and innovative finishing techniques. Additionally, balancing material authenticity with a refined aesthetic posed a design challenge. Regulatory constraints, production limitations, and ensuring harmony between raw steel textures and digital motifs, such as barcode patterns, demanded extensive prototyping and iterative design development.
Research: Type of Research: Applied Design Research
Objective: To explore the aesthetic and functional integration of recycled steel in office interiors.
Methodology: Material experimentation, spatial simulations, and lighting analysis.
Data Collection: Prototype testing and digital modeling.
Participants: Architects, engineers, and Kyoei Steel stakeholders.
Results & Insights: The research highlighted the potential of exposed steel as a design element, demonstrating its structural beauty and reinforcing corporate identity. The study advanced sustainable interior design, influencing material reuse practices in industrial architecture.
Inspiration: The design embodies the lifecycle of steel recycling while visually integrating Kyoei Steel’s digital identity. Barcode and QR code patterns, inspired by the company’s website, appear throughout the space, symbolizing the transformation of raw materials into structured design. By exposing and celebrating recycled steel, the project creates a unique spatial narrative, merging industrial heritage with a contemporary digital aesthetic.
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: The office interior integrates barcode and QR code motifs, linking the space to Kyoei Steel’s corporate identity. These patterns, expressed in wall treatments and stairwell designs, create an interactive experience, guiding movement through the space. The ceiling’s steel louvers diffuse light while reinforcing the visual continuity of barcode-inspired elements. This design transforms an industrial material narrative into a contemporary, high-tech environment.
Patents: N/A
Team Members: N/A
Image Credits: Image #1,#2 : Photographer Nobuaki Miyashita Variations, 2024
Image #3,#4,#5 : Photographer Sato Kenta, Variations, 2024.