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Rammed Earth Structure Embracing Geothermal Features for a Wellness Retreat

Rammed Earth Structure Embracing Geothermal Features for a Wellness Retreat
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Crafted from rammed earth and designed to integrate seamlessly with geothermal features, the structure serves as a dedicated wellness retreat that fosters a deep connection with its natural surroundings.
5 key facts about this project
01
Crafted from locally sourced rammed earth, enhancing sustainability and thermal performance.
02
Geothermal heating integrated into the design for energy-efficient climate control.
03
Curvilinear structure harmonizes with the natural topography of the landscape.
04
Strategic use of glass provides unobstructed views of the Northern Lights.
05
Private treatment areas designed for immersive nature experiences, prioritizing user tranquility.

### Overview

Caldera: The Boiling Pot is located in a scenic Nordic region characterized by geothermal features. The design aims to create a harmonious relationship with the surrounding landscape, emphasizing relaxation and intimacy. The architecture draws inspiration from the elemental aspects of the sky, mountains, and craters, all influencing its form to establish a connection between visitors and the natural environment.

### Architectural Form and Spatial Organization

The building's design features flowing, organic shapes that reflect the sinuous lines of the terrain. Curvilinear forms are employed to foster tranquility, while the spatial arrangement is meticulously crafted to promote interaction among visitors. The public areas are thoughtfully articulated, enhancing circulation and enabling various visual and experiential connections between indoor and outdoor spaces. Key facilities, including a brewery, treatment rooms, and relaxation lounges, are integrated to create a comprehensive wellness environment.

### Material Selection and Sustainability

Materiality plays a crucial role in reinforcing the building's environmental ethos. Hand-shaped, rammed-earth walls provide warmth and a tactile quality, fostering a connection to the earth. Wood is utilized in structural elements and interior finishes to enhance warmth and invite nature indoors. Additionally, glass is strategically incorporated to maximize natural light and views, while metal and concrete are used in structural cores to ensure durability. This careful selection of materials supports sustainability while maintaining the architectural integrity of the design.

The architecture is designed to evoke a meditative experience by incorporating delicate connections between interior spaces and the surrounding landscape, thus inviting exploration and engagement.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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