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Geothermal Retreat Crafted from Precast Elements and Polycarbonate

Authors:
David Lukas, Marta Vincencová
Geothermal Retreat Crafted from Precast Elements and Polycarbonate

Project in-detail

Crafted from precast elements and clad in polycarbonate, the design integrates geothermal energy while providing visitors with a unique bathing experience above Kvennagjá Cave.
5 key facts about this project
01
Crafted primarily from precast elements for rapid assembly.
02
Incorporates a fully glazed western facade for maximum natural light.
03
Features geothermal energy systems for sustainable power generation.
04
Includes observation platforms offering panoramic views of Lake Mývatn.
05
Integrates natural rock elements into the interior design for authenticity.

The Iceberg Shard is located above the entrance to Kvennagjá Cave, where it blends into the unique geological landscape of Iceland. Serving as a gateway to bathing areas, the design draws inspiration from the ancient creation story of Ginnungagap, highlighting the contrast between the forces of fire and ice. This concept emphasizes harmony with the surroundings and encourages visitors to engage with both the architecture and nature.

Conceptual Framework

The design reflects the balance of elemental themes found in Icelandic mythology. Visitors are guided from ground-level spaces, which emphasize the natural rock, to elevated observation points. This arrangement not only nurtures a connection with the volcanic terrain but also enhances the significance of the cultural story behind the location.

Material Selection

Materials play a crucial role in the project’s execution. The structure primarily uses precast elements for efficiency, allowing for quick assembly and resilience over time. Steel profiles form the foundational support, ensuring stability for the building. The facade features smooth polycarbonate panels, which promote thermal insulation while maintaining visibility between inside and outside spaces.

Visitor Experience

The ground floor offers essential facilities, including a reception area, restrooms, and lockers, ensuring convenience for guests. As visitors ascend to the upper levels, they encounter a café and spacious observation areas. This thoughtful arrangement invites users to appreciate the scenic views of Lake Mývatn and encourages exploration of the natural setting.

Sustainability Features

A notable aspect of the Iceberg Shard is its incorporation of geothermal energy systems, providing a source of power from low-to-moderate temperature geothermal resources. This approach lowers dependence on outside energy sources and aligns with the environmental characteristics of the region, embracing the geothermal nature of the site.

The design's combination of smooth polycarbonate and rugged volcanic rock creates a visual contrast that reinforces the project’s connection to elemental themes. This interaction encourages reflection on the relationship between the built environment and the surrounding landscape.

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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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