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Geothermal Greenhouse Powered By Steam and Constructed with Cross-Laminated Timber Panels

Authors:
Reynard Smit, Heidi Boulanger
Geothermal Greenhouse Powered By Steam and Constructed with Cross-Laminated Timber Panels

Project in-detail

Harnessing geothermal energy through steam-powered cultivation and constructed with cross-laminated timber, the project offers a multifunctional space that integrates a bathhouse and greenhouse within the Icelandic landscape.
5 key facts about this project
01
Utilizes geothermal steam for innovative greenhouse cultivation.
02
Incorporates cross-laminated timber panels for structural efficiency.
03
Features charred wooden shingles for enhanced durability and aesthetics.
04
Designed with a bent A-frame to optimize natural light and views.
05
Integrates communal geothermal baths within the landscape context.
The architectural project "Grjótagjá and the Amazing Steam-powered Greenhouse Orgel" is situated in Iceland, designed to harmonize with the region's distinctive geothermal landscape. This project integrates architecture and nature through innovative energy use and sustainable practices. The structure serves multiple functions, including a bathhouse, viewing platforms, and a greenhouse, all designed to promote environmental engagement and facilitate a connection between users and the geothermal features of the area.

Architectural Elements and Spatial Organization
The spatial organization of the project includes a series of interconnected zones. The viewing platforms are strategically positioned to offer expansive views of the surrounding landscape, enhancing the visitor experience. The bathhouse is designed to encourage relaxation while offering direct access to geothermal waters. The greenhouse acts as a functional agricultural space, utilizing steam energy for cultivation.

Attention to materiality is crucial in this project. Cross-laminated timber is used prominently for its sustainability and structural properties, promoting thermal comfort. Additionally, weathered steel and copper provide durability and visual appeal. The selection of materials reflects the natural surroundings, ensuring that the structure blends seamlessly into the environment.

Unique Design Approaches
One of the most notable aspects of the project is its reliance on steam energy sourced from the geothermal activity endemic to Iceland. This innovative approach not only powers the greenhouse but also enhances the architectural aesthetic by incorporating steam ducts that add a dynamic element to the design. The integration of natural phenomena with built structures fosters an immersive atmosphere for users, allowing them to experience the landscape in unique ways.

The project emphasizes sustainability through its architectural decisions. Locally sourced materials minimize environmental impact, while passive design strategies optimize energy efficiency. Native flora is included within landscaping efforts, supporting local biodiversity and reinforcing the project’s ecological commitment.

Community Engagement and Functionality
The layout encourages community interaction, creating spaces that invite social engagement and relaxation. The bathhouse is designed for communal use, inviting visitors to connect not only with the geothermal features but also with one another. The greenhouse serves as both an educational and functional space, where users can learn about sustainable practices while contributing to food production.

The architecture embodies a philosophy of coexistence with nature, prioritizing sustainability while delivering functional spaces that enhance the experience of place.

Explore the project presentation for more details on architectural plans, architectural sections, architectural designs, and architectural ideas to gain deeper insights into this compelling project.
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100,000 € Prize Fund / Kingpsan Edition #10
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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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