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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

Project in-detail

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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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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