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Corten Steel Structure Harmonizing with Natural Landscape as a Geothermal Visitor Center

Authors:
Nick Brown, Josh Zinnecker, Peter Heinz
Corten Steel Structure Harmonizing with Natural Landscape as a Geothermal Visitor Center
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Constructed from weathering corten steel, the visitor center seamlessly integrates geothermal energy with its modular design, offering visitors a unique vantage point to explore the region's striking geological features.
5 key facts about this project
01
Constructed with corten steel, the structure develops a unique patina that blends with the surrounding landscape over time.
02
The design incorporates geothermal energy systems for heating and cooling, capitalizing on local natural resources.
03
A modular layout allows flexible use of spaces for different visitor activities and events.
04
Expansive glazing provides unobstructed views of nearby geological features, enhancing the visitor experience.
05
The green roof utilizes native plant species, further integrating the structure into its environmental context.

The Tektonisk Tower is an architectural project located in northeastern Iceland, designed to function as a visitor center and observation point. It aims to enhance public access to the stunning geological features of the region, specifically the Grjótagjá caves and nearby Mývatn. This project embodies a synergy between architecture and its natural context, promoting exploration and education about the unique geological landscapes of Iceland.

The design is characterized by modular forms that facilitate interaction with the environment while maintaining a cohesive visual identity. The structure’s massing is carefully composed to respond to the surrounding topography, emphasizing the geological context through its form and materials. The building materials were selected not only for aesthetic appeal but also for their performance under Iceland's variable climate conditions.

Integration of Function and Space

The Tektonisk Tower serves multiple functions, including a café, information center, and observation deck. The layout is organized into distinct zones that guide visitors through the space, encouraging movement and engagement with the natural landscape. The visitor center includes large windows that frame breathtaking views of the geological formations, creating visual connections between the interior spaces and the outdoor environment. This intentional design fosters a sense of place and orientation, enhancing the overall visitor experience.

The observation tower is a key component of the project, elevating its users above the landscape to provide panoramic views of the surrounding area. This design aspect is not only functional but also educational, allowing visitors to appreciate the geological features from an elevated perspective. The incorporation of walking paths around the building enhances accessibility and promotes exploration of the surrounding natural features.

Innovative Material Choices and Sustainable Practices

The Tektonisk Tower utilizes a combination of corten steel, prefabricated aluminum cladding, and local wooden materials to create a durable and visually coherent structure. Corten steel, with its distinctive weathered appearance, integrates well with the rugged Icelandic landscape while ensuring longevity against harsh weather conditions. The aluminum cladding contributes to the building’s lightweight design, minimizing its impact on the site.

Sustainability is a core principle of this architectural project. The building employs geothermal heating and cooling systems, taking advantage of the abundant geothermal energy available in Iceland. Rainwater collection systems further reduce environmental impact and enhance the building’s self-sufficiency. The green roof integrates local vegetation, providing insulation and promoting biodiversity in the area.

The Tektonisk Tower stands out for its integration of architecture and geology, facilitating a deeper understanding of the region's unique landscape. Its thoughtful design and sustainable practices make it an exemplary model for future projects in environmentally sensitive areas.

For a detailed understanding of the architectural decisions and design processes involved in the Tektonisk Tower, readers are encouraged to explore the architectural plans, sections, and designs that provide further insights into this project and its innovative approaches.

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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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