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Harnessing Geothermal Energy with Skylights and Stack Ventilation in a Sustainable Dining Experience

Authors:
Valmir Kastrati, Adib Khaeez, Niloufar Rahimi, Jalal Matraji
Harnessing Geothermal Energy with Skylights and Stack Ventilation in a Sustainable Dining Experience
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Geothermal energy powers a thoughtfully designed space that combines a Restaurant and Greenhouse, utilizing skylights and stack ventilation to enhance sustainability and food production.
5 key facts about this project
01
Geothermal systems provide energy for heating and cooling.
02
Stack ventilation enhances natural airflow throughout the spaces.
03
Skylights are designed to frame the night sky and reduce energy use.
04
The layout facilitates a direct farm-to-table experience for guests.
05
Sustainability principles guide the design, minimizing environmental impact.

The design in the Myvatn region of Iceland explores the relationship between the landscape and the culinary experience through the integration of a Restaurant and Greenhouse. It focuses on sustainability and the unique geological features of the area, illustrating how food is produced and consumed. The layout is carefully structured to provide both distinct and interconnected experiences, guiding visitors to appreciate the connection between growing food and enjoying it as a meal.

Design Concept

At the core are two separate spaces: the Restaurant and the Greenhouse. Each functions independently, yet their forms engage in conversation with each other. This interplay encourages exploration of the site. The layout groups areas into two categories: the Green, for circulation between the greenhouses, and the Red, which includes the Food & Beverage sections. This arrangement simplifies movement and enhances the understanding of how food travels from the greenhouse to the dining table.

Sustainability and Environmental Engagement

The design places a strong emphasis on sustainability. Natural airflow is optimized through stack ventilation, which reduces reliance on mechanical systems. Skylights are skillfully positioned to capture natural light while framing the night sky. This connection between inside and outside not only brightens the spaces but also enhances the experience of being in such a beautiful location. Nature becomes part of the architecture, contributing to the overall atmosphere.

Lighting Strategy

A careful lighting strategy was implemented to protect the dark sky of the region. Illumination is directed downwards, minimizing light pollution. This approach highlights a commitment to environmental balance while respecting the area's night environment. Each architectural decision aligns with the surrounding landscape, reinforcing the responsibility to both the ecosystem and the local community.

Using local materials emphasizes the idea of sustainability and helps reduce transportation emissions. Every element supports the notion that architecture can fulfill practical needs while offering insights into food systems. The form of the Restaurant and Greenhouse stands out against the landscape, showcasing the relationship between the built environment and nature, while the design of the skylights captures the changing light throughout the day in a dynamic and engaging way.

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Celebrating Visionary Design: The Buildner Unbuilt Award 2026

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Competition organisers

The Buildner Unbuilt Award 2026 celebrates visionary unbuilt architectural projects that explore creativity and innovation. Open to architects, designers, and students worldwide, the competition welcomes submissions 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).

With a total prize fund of €100,000, each category winner receives €20,000, alongside student prizes of €5,000 and a €10,000 Best Presentation Award. Winners will also be featured internationally and presented with the Continuum Trophy designed by Germans Ermičs.

Registration runs from 31 October 2025 to 23 September 2026, with submissions due by 20 October 2026 and results announced on 1 December 2026. More information is available at architecturecompetitions.com 

Buildner's Unbuilt Award 2026

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

100,000€ Prize / 2026 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 23 September 2026

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