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Interactive Centre Embracing Geothermal Design with Corten Steel and Coarse Stone

Authors:
Jonathan Rodgers, Brian Hoy
Interactive Centre Embracing Geothermal Design with Corten Steel and Coarse Stone

Project in-detail

Combining Corten steel and coarse stone with geothermal energy, the centre offers an interactive educational experience while deeply rooted in the geological heritage of the Grjótagjá Caves.
5 key facts about this project
01
Corten steel combines with local geology for structural integrity.
02
Geothermal energy supports heating and ventilation systems.
03
Interactive digital exhibits enhance visitor engagement with geology.
04
Design elements reflect traditional turf house architecture.
05
Open fire feature provides warmth and a communal gathering space.

The GC Earth-Sky Centre is located in the Grjótagjá Caves, a setting that enriches the visitor experience with both natural beauty and ecological significance. The centre is designed to serve as an educational space, highlighting the interactions between earth, fire, light, water, and smoke. The concept is rooted in local traditions, drawing on the style of turf houses to create a connection to the surrounding landscape and its cultural history.

Material Considerations

Sustainable materials are a focus of the project, with coarse laid stone selected due to its local availability. This choice reduces the need for long-distance transport and minimizes environmental impact. Compacted and banked earth is also incorporated, providing solid thermal performance while supporting local plant life. These material choices reflect an intention to blend the built environment with nature.

Vertical Circulation and Experience

The design organizes vertical circulation to offer an engaging journey for visitors. Pathways and spaces are arranged to guide people through the landscape, inviting exploration and interaction. Strategic viewpoints and information displays provide insight into the geological features and cultural context of the site. Accessibility and safety were also considered, ensuring visitors can navigate the centre comfortably.

Digital Integration

A notable feature of the centre is its use of digital technology to enhance visitor engagement. The exhibition area includes interactive displays that allow guests to learn about the geological history of the caves. A virtual cave experience extends accessibility to wider audiences, creating a connection between local communities and the global context of environmental conservation.

The entrance greets visitors with a large stone opening, leading into a bright interior warmed by an open fire. This space serves as a gathering spot, encouraging social interaction. At night, the presence of illuminated smoke adds an atmospheric layer, drawing visitors deeper into the unique design and inviting contemplation of the natural elements surrounding them.

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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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Buildner's Unbuilt Award 2025
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100,000 € Prize Fund / Kingpsan Edition #10
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