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Geothermal Greenhouse with Etfe Skin in Volcanic Landscape

Authors:
Samuel Rivard, Daniel Di Bacco
Geothermal Greenhouse with Etfe Skin in Volcanic Landscape
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The combination of an ETFE skin and a geothermal system creates an energy-efficient greenhouse that provides fresh ingredients while seamlessly integrating with the volcanic landscape of Hverfjall, serving as a unique culinary destination.
5 key facts about this project
01
The greenhouse utilizes an ETFE skin for thermal efficiency and weight reduction.
02
A closed-loop vertical agriculture system supplies fresh ingredients directly to the restaurant.
03
Lightwells are strategically placed to enhance natural lighting throughout the interior.
04
The design integrates with the volcanic topography of Hverfjall for visual and environmental harmony.
05
Geothermal energy systems are incorporated to support the restaurant's operational needs sustainably.

The Lantern Greenhouse Restaurant is located in the Hverfjall area of Iceland, a region known for its volcanic landscape and black sand. Serving as a culinary destination, it emphasizes a strong connection to the natural environment. The design focuses on the greenhouse as the main element, creating a space that invites interaction with the site and promotes sustainable practices in food production.

Building Experience

Visitors approach the restaurant via a gradual ascent up the volcanic mound. The ground's texture provides a tangible link to the geological features of the area. This journey is purposeful, designed to culminate in a viewpoint that offers panoramic views of the Hverfjall landscape. As guests navigate through the space, they experience a progression that intertwines architecture with the surrounding topography.

Sustainable Practices

The greenhouse plays a vital role in the restaurant's function, providing fresh ingredients through a vertical agriculture system. This system is designed to be efficient, operating within a closed loop that recycles water and nutrients. By doing so, it highlights modern practices in food production while integrating smoothly into the restaurant's culinary offerings.

Materiality and Light

Natural light significantly influences the interior atmosphere. Strategically placed lightwells allow daylight to illuminate the greenhouse, enhancing the spaces within. The use of glass walls exposes the geological features of the site, creating a connection between the interior and the outside world. This design choice encourages a sense of closeness to the natural environment.

Energy Efficiency

ETFE (Ethylene Tetrafluoroethylene) is used as an inflatable skin that serves as a lightweight facade. This material helps manage solar gain while being fully recyclable, aligning with the project's commitment to sustainability. Additionally, the building incorporates geothermal energy systems, which utilize local resources to improve energy efficiency.

The flow of the restaurant encourages interaction with the greenhouse. Pathways lead to various observation points and terraces. This configuration enhances the connection to the rugged landscape, allowing visitors to appreciate the relationship between cultivated spaces and the natural environment.

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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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