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Reinforced Concrete Structures Embracing Kvennagjá Cave's Tectonic Landscape

Authors:
Tobias Liese, Paul Jahn
Reinforced Concrete Structures Embracing Kvennagjá Cave's Tectonic Landscape
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Set against the dramatic backdrop of the continental crack, reinforced concrete structures integrate seamlessly with the geological features of Kvennagjá Cave, providing visitors with access to thermal baths and observation points that enhance engagement with the unique landscape.
5 key facts about this project
01
Reinforced concrete structures respond to tectonic movements.
02
Direct access to underground thermal baths is provided.
03
Observation tower offers views of continental separation.
04
Buildings align with geological features of the landscape.
05
Pathways ensure accessibility for all visitors.

The design is situated within the unique geological landscape surrounding the Kvennagjá and Karlagjá caves, along with the continental crack that marks the boundary between the European and American tectonic plates. The project involves the creation of four distinct buildings that aim to enhance visitors’ engagement with the landscape. Each structure is thoughtfully positioned to connect with its environment, emphasizing the geological features found in the area.

Building Functionality

Two of the buildings are directly connected to the caves and serve as important staging areas for visitors. One building facilitates access to the Kvennagjá Cave, helping visitors prepare for the thermal baths inside. The other structure serves as a transition point, linking the Karlagjá Cave to a bridge that crosses the rift. These designs integrate with the natural landforms, appearing to grow from the earth and reflecting the geological shifts of the surrounding region.

Connection to the Landscape

The remaining two buildings highlight the broader landscape and the American plate. A bridge constructed across the crack encourages movement and interaction with the geological features of the site. An observation tower is part of the design, offering expansive views of the separation between the continental plates. This tower invites exploration and creates a direct connection with the natural surroundings, encouraging visitors to engage more deeply with the environment.

Access and Movement

An essential element of the design is the network of paths and ramps that facilitate circulation throughout the site. These pathways ensure that all visitors, including those with physical challenges, can access important areas. The main building functions as a central access point, where visitors can find information about the geographical significance of the site. The pathways guide visitors through the landscape, offering various opportunities for exploration and discovery.

Material Choices

The design considers materiality carefully, primarily using reinforced concrete made from locally sourced cement and basalt grit. This material choice reflects the geological context of the site and roots the structures within their natural setting. The facades incorporate cracks that allow light to enter the interiors, creating spaces that feel inviting and connected to the surrounding natural formations.

The architecture presents a thoughtful interaction between nature and built forms, focusing on creating a rich experience for everyone who visits. Each element of the design draws attention to the unique geological features, encouraging a deeper appreciation of the landscape.

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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. 

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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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