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Gabion-Infused Community Space Embracing Local Soil and Rainwater Collection

Author:
Julia Barashkov
Gabion-Infused Community Space Embracing Local Soil and Rainwater Collection
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Constructed with gabion walls and local soil, the design incorporates a winter garden for growing produce while managing rainwater collection, serving as a multifunctional community hub.
5 key facts about this project
01
Built using gabion walls filled with local gravel to minimize environmental impact.
02
Incorporates rainwater collection pools designed to support sustainable water management.
03
Features a south-facing winter garden that allows for on-site produce cultivation.
04
Utilizes concrete mixed with local soil for exterior load-bearing walls.
05
The layout includes diverse functional spaces, enhancing community engagement and interaction.

The design in Dimmuborgir is characterized by its careful relationship with the surrounding volcanic landscape, resembling a rock formation that appears to rise naturally from the ground. Serving as a community hub, it features a coffee shop along with various functional spaces and highlights the importance of sustainable practices. The concept draws on local geology, creating an inviting environment that reflects its context.

Materials and Construction

The exterior load-bearing walls are made from concrete mixed with local soil. This choice creates a strong connection to the landscape. Additional load-bearing walls utilize gabion construction, using local gravel that was removed during site preparation. This method helps reduce environmental impact while enhancing the building's strength.

Water Management and Green Spaces

An important part of the design includes two water pools located in the courtyard, designed to collect rainwater and snow from the angled roof. This feature not only supports water management but also emphasizes eco-friendly practices. The large winter garden in the south-facing area allows the coffee shop to grow its own produce, strengthening the connection to nature and promoting sustainable food options.

Spatial Organization

The layout includes varied functional spaces such as a café, lounge, kitchen, exhibition areas, offices, storage, and a playground. This variety accommodates different activities, making it a central gathering place. Key interior elements include a terrace with openings for local birch trees, outdoor seating made from reclaimed wood, and skylights that bring in natural light throughout the building.

Operational Sustainability

The coffee shop follows zero waste principles by using metal cups and fabric napkins instead of disposable options. All food comes from local producers who practice plastic-free shipping. This approach prioritizes composting, with food and paper waste being used as fertilizer in the winter garden. By banning plastic bags and offering takeout meals in reusable containers, the design demonstrates a commitment to reducing its environmental footprint.

The design encourages interaction between indoor and outdoor spaces. Wall-mounted seating offers views of the winter garden, enriching the user experience and fostering a strong connection to the surrounding nature.

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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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