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Sheltering Views from a Tectonic Observation Platform Made with Concrete and Timber

Authors:
Rebekah Schaberg, Ugo Ribeiro, Florian Kosche, Mattia Carioti
Sheltering Views from a Tectonic Observation Platform Made with Concrete and Timber
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Rising 30 meters above the ground, the observation platform crafted from concrete and timber offers unobstructed views of tectonic features in Iceland, serving as an interpretive visitor center for the Grjótagjá caves.
5 key facts about this project
01
Rooftop design mimics a cave structure to blend with the natural landscape.
02
Observation platform is elevated 30 meters to provide panoramic geological views.
03
Constructed using local aggregates to minimize transportation impacts.
04
Paths inspired by traditional Icelandic designs enhance visitor accessibility.
05
Incorporates rainwater management systems to promote sustainability.

Ævintýri serves as a modern landmark and visitor center for the Grjótagjá caves in Iceland. The design aims to provide an engaging experience that starts as visitors approach from different directions. The building works in harmony with its natural surroundings, featuring a roof that resembles a cave. This design offers shelter while encouraging people to explore the natural landscape.

Architectural Form and Function

The form of Ævintýri is carefully shaped, with a compact footprint that meets the needs of its various functions while considering its environmental impact. Vehicles and bicycles are directed under the curved roof, effectively separating the traffic from those walking to the caves. This organization enhances the visitor's experience and fosters a sense of connection to the surrounding environment.

Visitor Experience and Flow

When visitors arrive, they have options for how to interact with the site. They can bypass the building to reach the public caves through new paths, or they can stop at a service window to get information or tickets. The design includes changing rooms for guests preparing for cave visits. On the second level, visitors will find a lounge, gift shop, and café, all designed to provide views of the stunning geological features surrounding the area.

Sustainability and Material Choices

The design incorporates concrete, steel, and timber, focusing on local materials where possible. The concrete base utilizes regional aggregates, reducing transportation needs and enhancing sustainability. This choice also simplifies long-term upkeep. The lightweight roof is designed to manage rainwater effectively, promoting environmental responsibility.

Accessibility and Pathways

Ævintýri prioritizes accessibility through carefully planned pathways inspired by traditional Icelandic designs. Concrete pavers mixed with black sand aggregates create safe walkways while allowing for water drainage. This thoughtful approach helps merge the built environment with nature, ensuring that visitors can move comfortably and safely.

The observation platform, raised 30 meters above ground, offers expansive views of the dramatic landscape. Open and inviting, it’s a place where visitors can appreciate the geological features that define the Grjótagjá area. This elevated perspective enriches the overall experience, making it a significant feature of the design.

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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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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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Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
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