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Basalt Cubes Embracing Geothermal Growth Near Mývatn Nature Baths

Authors:
Otoha Seki, Miki Egawa, Daichi Tanaka
Basalt Cubes Embracing Geothermal Growth Near Mývatn Nature Baths
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Constructed from basalt, five cubes create a unique habitat integrating a geothermal greenhouse with a restaurant, positioned to capture sunlight and provide views of the Mývatn Nature Baths.
5 key facts about this project
01
Five cubes are aligned along a north-south axis to maximize winter sunlight exposure.
02
The roof design slashes downward to enhance natural light and connection to the landscape.
03
A geothermal greenhouse is integrated with a restaurant, promoting local food cultivation.
04
Icelandic basalt is used as the primary material, grounding the structure in its environment.
05
Large openings frame views of the Mývatn Nature Baths and Kverkfjöll volcano.

Five distinct cubes are placed within the Icelandic landscape, designed to serve as a new destination for visitors near the Mývatn Nature Baths, which are an hour's drive from Akureyri. The concept emphasizes a thoughtful relationship between the buildings and their surroundings, aiming to maximize natural light while providing an enjoyable experience for users in a unique climate.

Design Concept

The cubes are arranged along a north-south axis to capture sunlight effectively, especially during the winter months. This orientation is essential for the project’s dual focus on a geothermal greenhouse and a restaurant. The slashed roof design allows sunlight to enter, particularly on the winter solstice, creating an environment that encourages plant growth and sustainability.

Functional Integration

Combining greenhouse and restaurant spaces fosters an interactive experience for visitors. People can engage in both the cultivation and enjoyment of food grown locally. This approach transforms the site from a mere tourist spot into a local gathering space, promoting community involvement and sustainable practices in agriculture.

Spatial Organization

Within the southernmost cube, a multipurpose hall serves different activities, such as yoga lessons and film screenings. This flexible design allows for various uses. The overall layout includes distinct functional areas, such as a restaurant entrance, a reception counter, and a greenhouse area, all configured to ensure smooth movement and ease of access throughout the building.

Materiality

Icelandic basalt is the primary material used, creating a visual and contextual link with the nearby landscape. This choice not only contributes to the overall look but also supports the structure. The result is a sense of place that feels harmonious with the environment.

The building features large openings that frame views of the Mývatn Nature Baths and the Kverkfjöll volcano. These elements enhance the connection between the architecture and the surrounding natural features, enriching the experience for all who visit.

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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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