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Bamboo Screens and Susuki Roofs in a Compact Eco Home

Authors:
Yuge Gao, Sangay Dorji Wangchuk, Martina Marengo, Denislav Ignatov
Bamboo Screens and Susuki Roofs in a Compact Eco Home
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Crafted with bamboo screens and a Susuki roof, this eco-friendly microhome in Nagano offers a sustainable living solution amid a tranquil bird sanctuary.
5 key facts about this project
01
Crafted entirely with local materials, enhancing environmental sustainability.
02
Bamboo screens provide flexible privacy and integrate traditional techniques.
03
Susuki roof design incorporates solar panels for clean energy utilization.
04
Elevated on a wooden deck, allowing for multifunctional outdoor space.
05
Located in a bird sanctuary, promoting ecological sensitivity and calm living.

Take No Hari is a microhome designed by a group of architects from Bulgaria, Bhutan, Italy, and Singapore. Located in Nagano, Japan, the project responds to issues of urban overpopulation, particularly as more people are moving from Tokyo following the pandemic. The design merges Eastern and Western architectural ideas, drawing inspiration from traditional forms like Trullo and Baso structures.

Layout and Spatial Organization

The microhome's layout features two main areas: a larger space for living, eating, and working, and a smaller area intended for sleeping. This clear separation allows for a balance between social interaction and personal time. The sleeping area includes bamboo screens that provide privacy when needed, making the space flexible for different activities and experiences.

Natural Light and Interior Experience

A central feature of the design is a skylight, which allows sunlight to fill the interior. This brings warmth and brightness into the home, improving the living experience. Furniture is arranged along the curved walls, preserving open sightlines and connecting occupants with nature outside. Such a focus on natural light supports well-being, making the microhome a pleasant place to reside.

Materiality and Sustainability

Take No Hari emphasizes the use of low-embodied materials alongside traditional construction methods. The roof resembles the Gassho style, utilizing Susuki, or water reeds, with solar panels incorporated for energy efficiency. Walls consist of a combination of bamboo and cedar, with rice husk insulation that aids thermal comfort. These material choices reflect a commitment to sustainability while ensuring durability and functionality.

Design Detail and Contextual Integration

The microhome is raised on a wooden deck that can serve as a gathering space for picnics and outdoor activities once the structure is no longer in use. This design choice aligns with principles of sustainable living and shows an understanding of the local environment. Positioned within a bird sanctuary, the home enhances both the aesthetic and functional qualities of its setting. The overall architectural approach honors traditional values while addressing contemporary living needs.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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