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Mushroom Coffee and Thermal Mass in a Greenhouse Visitor Center

Author:
Camille Towey
Mushroom Coffee and Thermal Mass in a Greenhouse Visitor Center
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Mushroom coffee is brewed from produce cultivated within a greenhouse that integrates thermal mass technology, creating a visitor center designed for educational engagement with the surrounding Hverfjall landscape.
5 key facts about this project
01
Mushroom coffee is sourced from mushrooms grown onsite.
02
Thermal mass technology regulates indoor temperatures efficiently.
03
Pathways include educational displays about local geological history.
04
Observation decks offer panoramic views of the Hverfjall landscape.
05
The greenhouse features diverse planters for vegetables and herbs.

HVERFJALLSKAFFI operates as a greenhouse and visitor center located near the Hverfjall volcano in Iceland. The design concept emphasizes a strong connection between the built environment and the natural landscape. It aims to promote sustainability and education, allowing visitors to engage with local agricultural practices and explore the geological and ecological features of the area.

Design Concept

The layout encourages exploration, with pathways designed to lead visitors through various educational areas. These paths connect the greenhouse to displays that highlight the region’s geological history, volcanic activity, and native plant life. This structure enhances the visitor experience, providing ample opportunities to learn about the surrounding environment while enjoying the fresh produce offered.

Functional Spaces

The lower level features practical elements, including a coffee counter and dedicated areas for growing fruits and vegetables. The greenhouse contains both outer and inner planters, while a designated mushroom grow area is optimized for cultivation. There is also storage and processing space, which allows for efficient handling of harvested items. Educational displays turn the visit into a learning experience, informing guests about local agriculture and environmental stewardship.

Observation Areas

On the upper level, observation decks provide clear views of the volcanic landscape. These spaces are designed to frame the natural scenery, allowing visitors to appreciate the relationship between the built environment and nature. The observation areas invite visitors to pause, encouraging them to take in the dramatic contours and ecosystems of the region.

Architectural Details

Key architectural features include a thermal mass element that supports energy efficiency and sustainability goals. The entrance tunnel and arch port serve as transitions from the outside world to the welcoming atmosphere of the greenhouse and cafe. This thoughtful design detail empowers visitors to connect with both the architectural space and the rich natural setting, enhancing their overall experience.

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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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Design the next suburban home for the USA

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