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Sustainable Turf and Lava Stone Greenhouse for Local Food Production

Authors:
Thomas Boyster, Larry Kearns, Calli Verkamp, Michael Kendall
Sustainable Turf and Lava Stone Greenhouse for Local Food Production
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Constructed from turf and lava stone, the greenhouse integrates local materials and sustainable practices to support food production in the unique landscape of Myvatn, Iceland.
5 key facts about this project
01
Constructed primarily from turf and lava stone, enhancing thermal efficiency.
02
Features a modular design that allows for easy future expansion.
03
Incorporates rainwater collection systems for sustainable resource use.
04
Utilizes passive solar gain for energy efficiency in plant growth.
05
Emphasizes local material sourcing to connect with the regional context.

AuroraWorks is located in the landscape of Myvatn, Iceland, a region known for its unique geological features, including the Myvatn nature baths and Hverfjall crater. It functions as both a greenhouse and a restaurant, reflecting a design that emphasizes sustainability and efficiency. The concept draws from traditional turf house architecture, connecting the structure to local cultural and environmental contexts.

Design Concept

The design is inspired by Icelandic turf houses, which are built to adapt to the local climate. The use of turf and lava stone for construction highlights a commitment to using materials that are both available and effective in providing insulation. This approach gives the project a unique character that is closely linked to the surrounding landscape, ensuring that it is not only functional but also rooted in the local tradition.

Material Usage

Material choice plays an important role in achieving sustainability goals. The walls of the building are made from thick turf and lava stone, which create solid thermal mass and reduce reliance on wood, a resource that is becoming less accessible. The roof features a lava rock ballast, providing both strength and a connection to the environment. The ground concrete floor includes volcanic ash and calcified CO2 aggregate, further underscoring the project’s focus on environmental responsibility.

Operational Efficiency

AuroraWorks features a modular and flexible layout, designed to accommodate future expansions. The architecture supports passive solar gain and incorporates radiant heating and rainwater collection systems. These features work together to decrease overall energy consumption while reducing dependence on geothermal energy sources. The emphasis on operational efficiency demonstrates a thoughtful response to the environmental conditions in the area.

Interior Features

Inside, the structure showcases a transparent greenhouse design that allows ample natural light, which is beneficial for plant growth and reduces energy needs. Sound management is addressed with a stretch fabric ceiling, which helps create a comfortable atmosphere in the restaurant area. The use of locally sourced oak wood for the entrance door brings warmth to the space, emphasizing the building’s connection to the regional context.

At its essence, AuroraWorks incorporates principles of biomimicry, reflecting natural systems and processes within its design. This thoughtful integration allows the structure to serve its intended functions while prioritizing harmony with the ecosystem, resulting in a greenhouse that works alongside nature rather than against it.

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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.

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100,000€ Prize / 2025 ideas COMPETITION
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