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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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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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Competition organisers

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.

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

100,000€ Prize / 2025 ideas COMPETITION
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