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Living Moss and Compacted Ash Integrate into a Volcanic Refuge

Authors:
Karen Harding, Jeb Beresford, Victoria Bartlett
Living Moss and Compacted Ash Integrate into a Volcanic Refuge
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Incorporating living moss and compacted ash, the design creates a refuge that seamlessly integrates with the volcanic landscape while serving as an educational public space focused on ecological restoration.
5 key facts about this project
01
The building uses living moss to promote biodiversity in the volcanic landscape.
02
Compacted volcanic ash enhances structural stability while blending with the surroundings.
03
Triple glazing provides energy efficiency while allowing natural light to filter through.
04
Outdoor seating areas are designed to encourage interaction with the natural environment.
05
Indigenous vegetation is integrated into the structure, fostering ecological restoration.

The project focused on the Hverfjall volcano in Iceland aims to change a bleak and barren landscape into a lively ecosystem through the idea of rewilding. Situated in an area known for its distinct geological features, the design serves as both a public space and an educational resource. It underscores the importance of restoring nature by introducing native plants, moss, and lichen. The vision presents a once grey and desolate landscape coming to life, showcasing a narrative of nature reclaiming its territory.

Design Concept

The building represents nature taking back the land, illustrated by the metaphor of a green cloth being lifted from the earth. This idea not only enhances the visual aspect of the design but also offers a welcoming refuge for visitors. With careful thought, the architecture integrates with the surrounding landscape, allowing it to coexist with the natural environment without overwhelming it. This results in a harmonious blend of built and natural elements.

Spatial Organization

The layout promotes a mix of public and private areas, encouraging visitors to interact with both the indoor and outdoor spaces. Pathways are designed to ensure easy movement throughout the site, creating a unified experience that invites exploration. The spatial organization aligns with the intention to foster a connection between the community and nature, providing an educational space that highlights environmental awareness.

Materiality

The choice of materials is significant in supporting the ecological mission of the design. Components include compacted volcanic ash, bioresin, living moss and lichen, triple glazing, RockWool thermal and acoustic insulation, and local volcanic rock cladding. Each of these materials is carefully selected to respond to the local environment and contribute to sustainability. They reflect the project’s focus on integrating with nature and promoting biodiversity.

A noteworthy feature of the building is the surface that gradually incorporates local vegetation, enabling an interaction between nature and human-made spaces. This detail highlights the core principles of rewilding and serves as a clear representation of the project’s aim to connect with and celebrate the natural world.

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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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