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Funnel Roofs and Bamboo Structures in a Self-Sufficient Retreat

Authors:
Piotr Szendera, Adam Zbroiński
Funnel Roofs and Bamboo Structures in a Self-Sufficient Retreat
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With a funnel-shaped roof that optimizes rainwater harvesting and bamboo as its primary material, the retreat promotes self-sufficiency while providing a serene environment for wellness and relaxation.
5 key facts about this project
01
The retreat incorporates a circular layout that blends seamlessly with existing tree stands.
02
Rainwater harvesting is facilitated by a unique funnel-shaped roof design.
03
Bamboo makes up 90% of the structure and finishing materials.
04
Traditional tying and screwing methods allow for easy disassembly if needed.
05
Movable walls provide flexibility in interior layouts for tailored guest experiences.

The Chakrasana Vine Yoga Retreat, situated in Cambodia, offers a unique space designed to tackle environmental issues while providing a peaceful setting for reflection and mindfulness. The design concept focuses on sustainability and ecological balance, promoting a deep connection with the surrounding landscape. The retreat utilizes a circular layout that fits into the natural gaps among the trees, enhancing privacy and creating intimate spaces for visitors.

Spatial Organization
This design incorporates an elevated structure that minimizes its impact on the land. By lifting the buildings off the ground, the design encourages better air circulation and enhances the overall relationship with nature. The arrangement of spaces is intentional, fostering privacy while allowing guests to feel immersed in the lush surroundings, making it conducive to relaxation.

Sustainability Features
A distinct aspect of the retreat is its efficient water management system. The roof has a funnel shape that captures rainwater effectively, channeling it into tanks. This design supports electricity generation, promoting a self-sufficient environment. Additionally, the careful orientation of the buildings maximizes natural light and cooling breezes, further reducing energy use and environmental impact.

Material Use
Bamboo plays a prominent role in the construction, making up 90% of both the structure and its finishes. This renewable material reflects local building traditions while supporting the retreat’s commitment to sustainability. Using bamboo allows for lightweight construction that remains durable, adapting well to the local climate and conditions.

Construction Techniques
The building uses traditional methods such as tying and screwing, which make it easy to disassemble if needed. This approach focuses on resourcefulness and adaptability in the building process. The spaces within the retreat feature movable walls, offering flexibility. Guests can adjust the layout according to their needs, which enhances comfort and usability.

The design culminates in a roof that draws attention, serving not just as a functional element but as a visual mark that highlights the retreat's connection to the environment. The roof’s form, alongside the building's overall design, shapes an experience that invites guests to engage with both nature and their own tranquility.

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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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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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