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Geothermal Heating and Vertical Green Walls in a Greenhouse Dining Experience

Authors:
Rodrigo Hernandez, Paz Becerra, Constanza Cerda, Camila Diaz
Geothermal Heating and Vertical Green Walls in a Greenhouse Dining Experience
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With a unique "frozen ribbon" structure that integrates geothermal heating and vertical green walls, the design creates an immersive dining experience within a greenhouse setting, seamlessly connecting patrons to the surrounding landscape.
5 key facts about this project
01
The "frozen ribbon" design integrates seamlessly with the natural landscape.
02
Geothermal heating utilizes local thermal water for energy efficiency.
03
Vertical green walls enhance air quality while immersing diners in nature.
04
Dining spaces are arranged for varied social interactions and experiences.
05
The structure's orientation maximizes natural light and scenic views.

The Iceland Greenhouse Restaurant is located in the picturesque area of Mývatn, Iceland. It serves as both a dining venue and a greenhouse space where visitors can enjoy meals surrounded by nature. The design centers on a concept called the "frozen ribbon," which creates a protective cover while framing views of the striking Hverfjall volcano and the tranquil Mývatn lake. This structure connects the restaurant with the landscape, offering a unique experience for guests.

Design Approach

The layout of the restaurant is organized to create different dining experiences. It includes large communal tables that encourage social dining, intimate settings for smaller groups or families, and a bar area linked to a lounge. This variety of spaces allows guests to choose their preferred atmosphere, enhancing the overall experience while remaining close to nature.

Spatial Organization

The building adapts to the topography of the site. Social spaces are placed in the lower southern area while greenhouse elements occupy the higher northern section. This configuration minimizes disturbance to the land and optimizes natural light and views. Open staircases and vertical green walls facilitate movement through the space, integrating elements of nature within the architecture.

Materiality

The structure uses galvanized steel columns that provide stability and strength. Laminated Veneer Lumber (LVL) beams are included to offer warmth and a natural aesthetic. The lower façade is made of glass with aluminum framing, allowing for expansive views and abundant daylight. The upper layer is crafted from multi-wall polycarbonate sheeting, which helps manage heat and light within the building.

Sustainability Considerations

Attention to sustainability is apparent throughout the design. A geothermal heating system draws on local thermal water sources, providing an efficient way to heat the building. The restaurant also includes facilities for organic waste recycling, highlighting its commitment to environmental responsibility.

Guests are surrounded by vibrant greenery while dining, enhancing the atmosphere with a sense of peace and connection to the outdoors. This integration of nature and dining creates a remarkable setting for both locals and visitors to enjoy.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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