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Geothermal Structure Featuring Concrete Shell and Timber Interiors for Enhanced Visitor Experience

Authors:
Mara Apatachioae, Ben Bryan
Geothermal Structure Featuring Concrete Shell and Timber Interiors for Enhanced Visitor Experience

Project in-detail

A concrete shell roof integrates with geothermal systems and timber interiors to create an observation point that enhances visitor engagement with the unique geological landscape of the Mid-Atlantic Ridge.
5 key facts about this project
01
A prefabricated concrete shell roof serves as both structural support and a walkway for enhanced visitor access.
02
Timber interiors utilize locally sourced materials to reinforce the connection with the surrounding landscape.
03
The design incorporates geothermal systems for heating and energy, promoting environmental sustainability.
04
Diverse viewing platforms offer unique perspectives of the geological features along the Mid-Atlantic Ridge.
05
The structure actively advocates for moss regeneration and local flora restoration, encouraging ecological awareness.
The Grjótágjá Tower is an architectural project located at the Mid-Atlantic Ridge in Iceland. This structure serves as a functional observation point, enabling visitors to engage with the region's distinctive geological features. The design aims to harmonize with the surrounding volcanic landscape, emphasizing sustainable practices and environmental stewardship while offering educational opportunities about the local ecology and geology.

The project's primary function is to provide a vantage point for observing the fissure between the Eurasian and North American tectonic plates. The architectural design incorporates a range of spaces, including an observation platform at a height of 15 meters, a lobby area, a café, and educational facilities that facilitate interaction with visitors.

The building has a concrete shell roof, which doubles as a walkway, allowing movement throughout the structure while maintaining an unobtrusive presence in its natural context. The choice of locally sourced materials, notably concrete and timber, emphasizes sustainability and minimizes visual disruption. The interior spaces reflect a cave-like aesthetic, enhancing the immersive experience of the surrounding natural environment.

Unique Design Approaches in the Grjótágjá Tower

What sets the Grjótágjá Tower apart from typical observational structures is its integration with geothermal energy systems. This innovation allows the project to operate sustainably, aligning with contemporary expectations for eco-friendly architecture. The use of landscaped pathways directs foot traffic, thus protecting the local vegetation and minimizing ecological impact.

The cross-sectional design of the tower includes multiple viewing angles, enhancing visitor engagement with the landscape. Visitors can appreciate both subterranean and surface geological features from strategic vantage points, providing educational value that extends beyond mere observation. The building’s layout supports intuitive movement among different functions, which includes reception areas, restrooms, and information spaces.

Architectural Materials and Sustainability

Materials play a significant role in the design of the Grjótágjá Tower. The use of concrete provides robust structural integrity, essential for sustainable construction in a rugged landscape. Timber, featured prominently in the interiors, promotes warmth and acoustic comfort, creating a welcoming environment. Natural stone elements are incorporated, reinforcing the building's connection to the geology of the region while adding to the aesthetic appeal.

The project advocates for moss regeneration and local flora restoration, fostering a sense of environmental responsibility among visitors. This focus on ecological engagement is a core aspect of the overall design philosophy.

The Grjótágjá Tower exemplifies a thoughtful approach to architectural design, seamlessly merging structure and environment. For further exploration of the Grjótágjá project, including architectural plans, sections, designs, and ideas, interested readers are encouraged to review the full presentation of the project.
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100,000€ Prize / 2025

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

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
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