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Harnessing Geothermal Energy with Cross-Laminated Timber in a Community Greenhouse

Authors:
Sara Maria Camagni, Eva Schwärzler, Carlheinz Christoph Von Geyso
Harnessing Geothermal Energy with Cross-Laminated Timber in a Community Greenhouse
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Utilizing cross-laminated timber and geothermal energy, the design creates a functional greenhouse and community hub that seamlessly integrates agriculture with its natural Icelandic setting.
5 key facts about this project
01
Utilizes geothermal energy to maintain optimal temperature levels for plant growth.
02
Features a bent A-frame construction that enhances structural stability and aesthetic appeal.
03
Incorporates rainwater harvesting systems for irrigation, minimizing water consumption.
04
Constructed using cross-laminated timber for durability and sustainability in harsh climates.
05
Charred wooden shingles provide both fire resistance and a distinctive visual texture.

"The Rise" is an architectural project located in the Myvatn region of Iceland, designed to serve as a greenhouse and community hub. The structure emphasizes sustainability and integrates seamlessly with its natural surroundings, aiming to foster an appreciation for agriculture while enhancing community engagement. The building employs a thoughtful combination of materials and design strategies to meet its functional requirements while adhering to environmental principles.

The primary functions of "The Rise" include agricultural production, dining, and community interaction. The design features a greenhouse at its core, allowing for diverse plant cultivation while promoting local food production. The open layout encourages visitors to explore both agricultural practices and social spaces, serving as an educational platform focused on sustainable living.

Architectural Design and Features

The architectural design incorporates multiple levels, with fluid circulation paths that connect various functional areas. The sloping roof is engineered for optimal rainwater drainage, which is then harnessed for irrigation in the greenhouse. The extensive use of glass in the greenhouse structure enhances natural lighting, creating an ideal environment for plant growth.

Key architectural features include:
- Cross-laminated timber (CLT) used in the structural framework, combining durability with eco-friendliness.
- Exposed timber beams that contribute to the aesthetic warmth of the interior, while allowing for high ceilings that amplify the sense of space.
- Aluminium portal frames that provide lightweight yet robust support for the greenhouse, ensuring a resilient structure that withstands Icelandic weather conditions.

Integration with Environment

"The Rise" is distinguished by its integration into the unique topography of the Myvatn region. The placement of greenhouses across varying elevations is intentional, maximizing sunlight exposure while minimizing visual disruption to the landscape. The architecture respects the natural contours, resulting in a harmonious relationship between the built environment and its surroundings.

The project employs geothermal energy to regulate temperatures within the growing spaces, exemplifying a commitment to sustainable practices. Rainwater collection systems reduce reliance on external water sources, promoting efficient irrigation practices.

Overall, "The Rise" represents a multifaceted approach to architecture, whereby agricultural production and community interaction are interwoven into the design. To better understand the architectural plans, sections, and overall design idea, readers are encouraged to explore the project presentation for a closer examination of its innovative solutions and detailed design elements.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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