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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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Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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