Douraku-ann 이동식 다실 by Tsukasa Kawahara and Tadayuki Yabuta

Douraku-ann 이동식 다실 by Tsukasa Kawahara and Tadayuki Yabuta is a highly esteemed winner of the very prestigious 2026 A' Design Award 철상 in 인테리어 공간 및 전시 디자인 Competition Category.

철인테리어· 2026

Douraku-ann 이동식 다실

by Tsukasa Kawahara and Tadayuki Yabuta

Client: Portable Tea Room Douraku-ann

A' Design Award 철상 Winner in 인테리어 Category

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The Design

About Douraku-ann 이동식 다실

'도라쿠안(Douraku-ann)'은 다양한 환경에서 임시로 사용할 수 있도록 설계된 이동식 다실이다. 다다미 두 장 규모의 평면은 작은 면적 안에서 일본 전통 공간 구성 원리를 따르고 있다. 프레임은 국산 삼나무와 삼나무 합판으로 제작되었으며, 안정성과 경량성을 확보하기 위해 금속 커넥터 유닛으로 접합되었다. 벽 패널은 다다미 바닥재에 사용되는 골풀의 자투리 재료로 만들어졌다. 기본 모듈은 폭, 깊이, 높이가 각각 2000mm이며, 유닛을 추가해 규모를 확장할 수 있다. 접이식 부재를 적용해 공구 없이 조립이 가능하고, 운반이 용이하며 반복적인 재사용이 가능하다.

The Recognition

About the A' Design Award 철상

Douraku-ann 이동식 다실, 이 작품은 A' Design Award 철상 수상작으로, 잘 디자인된 창작물에 기대되는 전문적·산업적 요건을 충족하는 좋은 디자인에 수여되는 권위 있는 인정입니다. 철상 수상작은 창작자의 뛰어난 기술, 높은 전문성, 전문가다운 이해, 창의적 역량을 보여 줍니다. Douraku-ann 이동식 다실, 이 작품은 높이 평가받고 감탄과 사랑을 받는 창작물로서 실용적이고 혁신적일 것으로 기대됩니다. 이 철상 수상 디자인은 업계 모범 사례를 통합하며 노하우와 재능으로 연결된 유능한 기술적 특성을 갖추고 있습니다. Douraku-ann 이동식 다실, 이 작품은 철저함으로 존중받으며 삶의 질을 개선하여 세상을 더 나은 곳으로 만들도록 디자인되었습니다.

Behind the Design

Press Kit

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

Unique Properties: This project originated from the intention to reinterpret Japan’s environmentally mindful culture and the philosophy of mottainai in a socially meaningful way. By transforming leftover materials from furniture production into architectural components, the design preserves the aesthetics of traditional Japanese spaces while reducing waste and promoting sustainable practices. The two‑tatami tea room, known for its ability to create intimacy and cultural depth within a small footprint, serves as the conceptual foundation for this portable community space.
Douraku-ann demonstrates that meaningful social interaction does not require large or permanent architecture.
Its modular frame, foldable panels, and simple assembly with basic tools enable the structure to be transported,
reused, and installed repeatedly with minimal environmental burden. This mobility democratizes access to
Japanese spatial culture and encourages spontaneous gatherings in diverse environments.
By merging reclaimed materials with contemporary construction methods, the project proposes a sustainable model for community‑oriented architecture. It is both a continuation of cultural heritage and a forward‑looking vision for environmentally responsible spatial design—an intimate space that fosters human connection while minimizing ecological impact.
Dimensions & Packaging: Douraku-ann's structure is composed of pillars and beams crafted from domestic cedar and cedar plywood. The frame is assembled using REV metal joint units, ensuring high structural stability while maintaining a lightweight and highly portable form. Its basic module measures W2000mm x D2000mm x H2000mm + H300mm and can be expanded by adding additional units. The foldable, modular system allows for efficient packing, easy transportation, and flexible installation across diverse environments.

The wall panels are sustainable components made from off‑cuts of rush grass, the raw material used in traditional tatami flooring, further reinforcing the project's ecological ethos. Each element incorporates a contemporary aesthetic while utilizing environmentally responsible Japanese materials, resulting in a structure that harmonizes technical precision with cultural authenticity.
Tags: Portable Tea Room, Dourakuann, Japanese Spatial Culture, Modular Architecture, Joint System, Sustainable Design, Reclaimed Wood, Community Formation, Small Public Space, Wabi Sabi, Hospitality Space, Mobile Architecture, Foldable Structure, Cultural Reinterpretation, Design Research, Spatial Intimacy, Pop up Space, Traditional and Contemporary, Human Interaction Design
Production Technology: Douraku-ann is a portable Japanese style spatial unit constructed from recycled timber and an engineered assembly frame. The joint system was optimized to achieve strength and stability with minimal components allowing quick assembly.

Foldable elements combine portability with durability, enabling flexible modular configurations. Recycled timber from furniture production is refined through careful finishing enhancing sustainability. The project reinterprets the traditional two-tatami tea room in a contemporary form creating a culturally rich and environmentally conscious space.
Design Challenge: The main challenge was achieving portability ease of assembly and structural durability while preserving the essence of the traditional tea room. Adapting a fixed delicate architectural form into a mobile structure required reinterpretation of its cultural values.

Constraints included safety regulations material selection and production feasibility. These were addressed through a modular joint system foldable components and repeated testing. The project demonstrates that traditional aesthetics and modern mobility can coexist and create new forms of social interaction.
Research: This practice-based design research explores adapting the traditional Japanese tea room to contemporary lifestyles through the portable tea room Douraku-ann. The study investigates how compact spatial units influence community formation and interpersonal dialogue.

From 2012 to 2025 installations were conducted in diverse environments to collect qualitative data through observation interviews and analysis. Experiments with alternative materials examined adaptability.

Results show that even a minimal space can generate comfort and intimacy encouraging meaningful conversations among strangers. The study highlights how portability and traditional spatial principles can create new small public spaces and reshape social relationships.
Inspiration: Douraku-ann is a mobile collapsible tea room that can be deployed in virtually any environment, creating a refined traditional Japanese spatial experience. This compact structure embodies the aesthetics of Japanese beauty and the spirit of hospitality, offering an intimate setting with cultural depth. Crafted using reclaimed timber and off‑cuts from traditional materials, it also reflects an eco‑conscious approach rooted in the Japanese philosophy of valuing resources. Its mobility enables it to introduce an authentic Japanese atmosphere with elegance and precision. As a contemporary reinterpretation of historical communal spaces, it carries forward cultural lineage while evoking tranquility and the contemplative qualities of wabi‑sabi.
Project Duration: Douraku-ann was conceived by Tsukasa Kawahara and installed for a one-day event in Kyoto, Japan on March 12, 2023. The project demonstrated the qualities of modern Japanese architecture while emphasizing the importance of cultural preservation. It also included field studies to deepen its cultural and architectural relevance.
Operation Flow: Douraku-ann creates an immediate Japanese atmosphere in any setting and adapts to various uses. It can function as a Japanese style room community hub conversation space tea ceremony area relaxation space or retreat depending on user needs.
The modular frame assembles without tools, and panels unfold to form a complete environment within minutes. Once installed, it naturally encourages calmness, dialogue and shared experiences. Its versatility allows users to shape the space freely, making it a platform for interaction and community building.
Team Members: Tsukasa Kawahara Chief Designer
Tadayuki Yabuta Designer
Kana Hashizume Designer
Koji Sakai Director
Ayumi Shima Collaborative Designer
Tomoyuki Kitatani Designer
Dourakuann Team
Image Credits: Photo Basic Style Douraku-ann Seishi Maeda
Event Documentation Tadayuki Yabuta
Arrangement Style Yoshiaki Kita