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Triangular Overhangs and Recycled Concrete in a Compact Modular Shelter

Authors:
Rebecca Bobetko, Sara Biljan, Dario Biljan
Triangular Overhangs and Recycled Concrete in a Compact Modular Shelter
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Utilizing a trapezoidal framework with triangular overhangs and a durable concrete façade, the modular camping cabin redefines compact living by integrating multifunctional spaces designed for temporary or holiday use.
5 key facts about this project
01
Trapezoidal frame allows for flexible interior configurations.
02
Overhangs create shaded outdoor areas enhancing user comfort.
03
Monolithic concrete façade ensures structural stability and longevity.
04
Design features customizable triangular frames for varied uses.
05
Compact footprint integrates storage solutions within steep rooflines.

The modular camping cabin serves as a modern response to the need for affordable living spaces in the face of urban pressure. Located within a natural environment, the design functions both as a holiday home and a temporary shelter. The overall concept merges modularity and sustainability, aiming to enhance the connection between inhabitants and their surroundings.

Conceptual Framework

The project is based on the idea of integrating the building with nature. Inspired by the structure of trees, the design features a trapezoidal frame that allows for different additions, such as galleries and roof terraces. This creates a fluid interaction between indoor and outdoor spaces, improving the user experience. The layout promotes flexibility, enabling the structure to adapt to the changing needs of its occupants.

Materiality and Structure

Durability is a key aspect of the cabin, highlighted by the use of a monolithic concrete façade. This provides a strong foundation and maintains stability. The roof consists of patinated metal shingles, adding an aesthetic element that reflects light similar to how sunlight filters through a forest canopy. These material choices not only serve practical functions but also align with the goal of sustainable design.

Spatial Organization

Interior arrangements are designed to maximize functionality. A narrow service unit integrates both storage and access, making efficient use of the limited footprint. The cabin's spaces can easily shift from living areas to workspaces or recreational zones. By incorporating storage within the steep roof, the design maintains a clean look while ensuring every corner is usable.

Design Details

Distinctive triangular frames characterize the design, allowing for varied functions like bedrooms, study areas, or communal spaces. This adaptability meets the immediate needs of users and accommodates future changes in living situations. Overhangs create shaded outdoor areas that enhance comfort, encouraging residents to appreciate their natural surroundings while enjoying the cabin's amenities.

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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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