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Plant-Based Foil and Cozy Spaces in a Sustainable Forest Retreat

Authors:
Sebastian Seibert, Christian Brönner
Plant-Based Foil and Cozy Spaces in a Sustainable Forest Retreat
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With a focus on cozy living spaces enhanced by plant-based foil for durability, this retreat offers serene self-reflection in a sustainable forest environment.
5 key facts about this project
01
Cozy sleeping compartment designed for privacy and comfort.
02
Multifunctional staircase connects open meditation areas with varied perspectives.
03
Cross-ventilation facilitated by strategically placed openable windows.
04
Biodegradable materials used throughout for environmental sustainability.
05
External access to drinking water storage enhances self-sufficiency.

Hide n' Seek is a living space designed to promote personal reflection while being closely connected to nature. Located in a forested area, the design focuses on creating tranquility through its layout and the use of natural light. The structure encourages occupants to engage with their surroundings, enhancing their experience of solitude and mindfulness in a serene environment.

Conceptual Design
The design is centered around the idea of fostering a peaceful atmosphere. It features two main open areas intended for meditation and contemplation, connected by a multifunctional staircase. This staircase not only provides access between levels but also offers opportunities for observing the scenery from different angles. The arrangement of spaces strikes a balance, allowing for both openness and a sense of privacy.

Material Selection
The primary materials used in construction include steel and wood. Steel helps to ensure the strength and stability of the framework, while wood adds warmth and blends well with the natural surroundings. Stacked plank walls are utilized for insulation, helping to maintain comfortable temperatures throughout the changing seasons. Large, openable windows facilitate airflow and bring in natural light, contributing to a refreshing living environment.

Spatial Functionality
A sleeping compartment within the structure is designed to offer comfort and security. It features a layout that is intimate yet spacious enough to relax. Essential amenities, such as a sink for personal hygiene and a tea preparation area, are integrated into the design. This practicality supports the minimalist approach, providing necessary comforts while maintaining focus on the overall intention of the space.

Sustainability Features
The design prioritizes sustainability through the use of biodegradable materials and minimal foundations. This choice makes relocation easier and reduces environmental impact. A protective plant-based foil is applied to wooden surfaces to help shield against weathering. Attention is also given to details like access to drinking water storage and separate areas for wastewater management, enhancing the self-sufficiency of the dwelling.

Natural light plays a key role in the design, as the windows frame views of the surrounding landscape, inviting the outside in while creating a sense of security and refuge. This careful consideration of light contributes to a calming atmosphere, where occupants can fully engage with their environment and themselves.

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The Architect’s 
Stair
The Architect’s Stair
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Kinderspace
Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
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100,000€ Prize / 2025
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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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