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Basalt Cladding and Geothermal Integration in a Sustainable Guest House Design

Authors:
Giacomo Spanio, Paolo Reali, Sergiu Cernea, Nicola Puppin
Basalt Cladding and Geothermal Integration in a Sustainable Guest House Design

Project in-detail

Employing locally sourced basalt cladding and harnessing geothermal energy, the design offers an immersive experience that connects guests to the stunning Icelandic landscape while providing a sustainable retreat.
5 key facts about this project
01
The guest house utilizes locally sourced basalt rock, reflecting the surrounding geological landscape.
02
Cross-laminated timber panels enhance structural stability while providing excellent thermal insulation.
03
The design features large, operable windows that optimize natural light and ventilation throughout the space.
04
Geothermal energy is directly integrated into the building's heating system, promoting energy efficiency.
05
An outdoor terrace seamlessly connects guests to the natural environment, enhancing their overall experience.
The Iceland Thermal Springs Guest House is a thoughtfully conceived architectural project that merges contemporary design with the rich geological and cultural context of its Icelandic surroundings. This guest house serves as a retreat, offering guests a unique opportunity to experience the natural beauty and wellness benefits of the nearby thermal springs, while also enjoying the comfort of modern accommodations. The project embodies a harmonious relationship with the environment, utilizing sustainable materials and strategic design elements to enhance the overall experience.

At its core, the guest house represents a commitment to ecological awareness and cultural respect. The architecture reflects the essence of Icelandic heritage, showcasing traditional forms interpreted through a modern lens. The building’s pentagonal shape is not only visually interesting but also serves functional purposes, such as maximizing natural light and providing expansive views of the surrounding landscape. This design approach fosters a deep connection between the occupants and the natural elements outside, ensuring that each guest can immerse themselves in the beautiful scenery that characterizes the region.

Functionally, the guest house incorporates various spaces that cater to different needs. An open-plan layout allows for fluid movement between communal areas, including a spacious lounge and dining area, enabling social interaction among guests while maintaining intimate enclaves for relaxation. The layout is designed to enhance the guest experience by offering both communal and private spaces, thereby addressing the varying desires for social engagement or solitude.

The material selection is a significant aspect of the design, with a focus on sustainability and local sourcing. The use of basalt rock, abundant in the region, provides not only durability but also thermal properties that enhance energy efficiency. This choice reflects the local geology and reinforces the building's connection to the Icelandic landscape. Additionally, native timber is incorporated into the structure, adding warmth and comfort to the interiors, while concrete elements lend structural integrity and thermal mass. Expansive glass windows, strategically placed throughout the design, allow natural light to flood the interior, creating a bright and inviting atmosphere that minimizes reliance on artificial lighting.

Unique design approaches define this project, particularly the integration of the thermal springs into the overall experience of the guest house. Positioned thoughtfully to provide easy access to these natural resources, the design encourages wellness activities and relaxation. The ability to connect with nature through features like outdoor terraces and large window openings enables guests to engage with the landscape in a meaningful way.

Furthermore, the design incorporates passive strategies to manage heating and ventilation. Operable windows facilitate cross-ventilation, while architectural features that optimize solar gain work to maintain comfortable indoor temperatures throughout various seasons. This commitment to energy efficiency not only supports sustainability but also aligns with contemporary architectural practices aimed at minimizing environmental impact.

The Iceland Thermal Springs Guest House exemplifies a balance of functionality, aesthetic appeal, and environmental consciousness, making it a remarkable addition to the Icelandic landscape. Through its thoughtful integration of architecture and nature, this project showcases how design can enhance the living experience by fostering a deeper appreciation for the surroundings. Readers are encouraged to explore the architectural plans, sections, designs, and ideas behind this project to gain a more nuanced understanding of its innovative approach and dedication to sustainability.
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MICROHOME
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100,000 € Prize Fund / Kingpsan Edition #10
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Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
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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