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Exploring Tensegrity in a Polycarbonate Observation Tower Overlooking a Geological Fissure

Author:
Matthias Pabst
Exploring Tensegrity in a Polycarbonate Observation Tower Overlooking a Geological Fissure
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Rising above a geological fissure, the polycarbonate observation tower and grounded guest house showcase a unique interplay of tensegrity and local stone elements, providing visitors with an immersive experience of Iceland's natural landscape.
5 key facts about this project
01
Rising observation tower mimics local cave formations.
02
Spiral staircase framed by chains enhances vertical experience.
03
Guest house integrates large, locally sourced stones.
04
Polycarbonate sheets provide light and thermal insulation.
05
Design emphasizes accessibility without disrupting nature.

The Iceland Cave Tower is situated near a geological fissure and consists of a guest house and an observation tower. The design emphasizes a strong connection with the surrounding landscape while enhancing visitors' experiences of the area's unique geological features. Central to the concept is “Tension and Integrity,” which explores the balance between stability and dynamic form.

Observation Tower

The observation tower features a delicate form that reaches upward, symbolizing aspirations and a link to the sky. Its base is designed to resemble local cave formations, creating a unique entry point for visitors. A balcony at the top offers expansive views of the continental plates, and the spiral staircase, framed by chains, reinforces the design's emphasis on verticality. This element fosters a sense of height and perspective, inviting visitors to connect with their surroundings.

Guest House

In contrast to the tower's elevation, the guest house is a solid structure, focusing on shelter and a connection to the landscape. The open layout encourages fluid interactions between inside and outside, effectively merging the two spaces. Large stones are integrated into the design, providing both artistic elements and functional uses within the interior, making the space feel grounded while maintaining a connection to nature.

Materiality

The design employs specific materials thoughtfully chosen to support the overall vision. Polycarbonate sheets form the thermal envelope of the guest house, allowing light to filter in while also providing insulation. A wooden framework adds stability and structure, while the use of metal plates for finishing touches completes the construction. Together, these materials enhance the connection to the natural environment.

Design Integration

Accessibility for visitors is a key aspect of the design, with the placement of both structures carefully considered within the landscape. The contrasting forms of the upward-reaching tower and the stable guest house offer distinct yet complementary experiences. Integrating local geological features creates a stronger bond with the surrounding area, showcasing how built forms can work alongside nature. The large stones within the guest house act as clear reminders of the landscape's influence, highlighting the project's commitment to local identity and context.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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