A Tokyo Office Renovation Inspired by History, Craft, and Spatial Flow

Located in Jinbou-cho, Chiyoda — Tokyo’s famed “Town of Books” lined with historic bookstores and vintage publishing houses — the DA OSAKA Tokyo Branch by Reiichi Ikeda Design reimagines a former newspaper printing building into a refined, craft-driven office space.

The project reflects the brand identity of DA-OSAKA, a company specializing in commercial interior construction, while honoring the cultural and architectural legacy of its site. Covering 165 m², the office renovation blends heritage materials, artisanal detailing, and modern spatial choreography to create a workplace that feels calm, tactile, and rooted in place.

DA OSAKA Branch Tokyo / Reiichi Ikeda Design

Context and Architectural Approach

Set along the Nihon-bashi River, the building retains its clove-dyed brown tile façade, a distinctive feature preserved from its original era as part of the “Shinbun-no-Shinbun Building” — a hub of newspaper activity. Rather than erasing this history, the design embraces it, weaving the building’s legacy into the new narrative of a creative, collaborative Tokyo branch office.

The architectural strategy prioritizes continuity between exterior and interior, urban memory, and a seamless user experience. The entrance sequence becomes a storytelling moment, linking the street to the workspace through material tactility and spatial rhythm.

Redefining the Entry Sequence and Circulation

A unique feature of the site is the two-route access system — an external straight staircase and a traditional elevator entry. Reiichi Ikeda Design reinterprets this circulation, shifting the main entry from the second floor to the first, enabling a more immersive and ceremonial arrival sequence.

Key Design Moves

• Extending the interior towards the street by visually and physically drawing the external staircase inward
• Forming a soft semicircular wall profile around the staircase to create fluid spatial transitions
• Carrying clove-dyed tiles from façade to interior surfaces, reinforcing continuity and grounding visitors in the building’s history

This approach transforms the staircase into a central spine of movement and interaction, setting the tone for a workspace connected to its surroundings.

Material Palette and Craft Details

The design showcases a delicate balance between warm wood elements, aged textures, and precision-crafted details. Central to the aesthetic is the reinterpretation of the building’s iconic clove-dyed tile, which appears not only on walls but also on furniture and pillar surfaces, blurring boundaries between architecture and interior objects.

Material Highlights

• Clove-dyed brown tiles bridging exterior and interior
• Natural wood finishes adding warmth and softness
• Custom-made lighting fixtures inspired by the turning pages of vintage books, echoing Jinbou-cho's literary heritage
• Stainless steel pendant lighting with elegant arc-shaped forms

A preserved rectangular wall opening — once used as a mail slot — becomes a poetic relic, connecting past function to renewed purpose.

Workspaces and Spatial Character

The interior prioritizes openness and material honesty, creating a serene environment that supports creativity and communication. Carefully integrated columns, soft lighting, and crafted furnishings contribute to a sophisticated yet welcoming office atmosphere.

The space reflects the client's identity as masters of interior construction — precise, detail-oriented, and deeply tuned to material expression.

A Workspace Shaped by Time, Craft, and Cultural Memory

The DA OSAKA Branch in Tokyo is not merely a workspace; it is a sensitive renovation that honors architectural memory while embracing contemporary design language. With each tile, curve, and crafted detail, the office captures the spirit of Jinbou-cho — a neighborhood where stories, craft, and culture converge.

It stands as a quiet yet powerful statement: architecture can bridge eras, weaving people, time, and place into a evolving new chapter.

All photographs are works of Yoshiro Masuda