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Stepped Green Roof with Corten Steel Accents in a Sustainable Restaurant

Author:
Adela Cadar
Stepped Green Roof with Corten Steel Accents in a Sustainable Restaurant
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A stepped green roof integrates with the landscape, while corten steel accents enhance the structure's connection to the rugged environment, creating a sustainable restaurant that offers a unique dining experience amidst Iceland’s natural beauty.
5 key facts about this project
01
Green roof promotes biodiversity by incorporating local vegetation.
02
High ceilings and large windows enhance natural light and views.
03
Direct integration of the greenhouse within the dining area.
04
Design reflects traditional Icelandic turf house aesthetics.
05
Corten steel elements provide durability and weather resilience.

The Aurora Greenhouse Restaurant is located near Sandvatn Lake in Reykjahlid, Iceland. The design merges a dining space with a greenhouse, allowing guests to enjoy Icelandic cuisine while immersed in the scenic beauty of the Myvatn region. The approach focuses on blending the building into its natural surroundings, capturing the essence of the landscape in the architectural form.

Architectural Integration

The design showcases a structure that rises from the ground, similar to traditional Icelandic turf houses. This method connects the building with the landscape and encourages a sense of belonging for those who visit. The greenhouse is designed with a stepped layout, which enhances light exposure essential for growing plants while creating a source of fresh ingredients for the kitchen.

Accessibility and Flow

Two main entrances offer paths into the restaurant—one at street level and another that leads to a green roof. This variety in access points improves the movement throughout the space, allowing visitors to engage with the outside environment. The arrangement reflects an understanding of how people navigate, making the building easy to explore and enjoy.

Spatial Organization and Functionality

Inside, the restaurant features high ceilings and large windows that frame views of the beautiful landscape. Glass walls separate the dining area from the greenhouse, inviting diners to experience the growth of their food firsthand. A multipurpose room, adaptable for many activities, has been designed with natural light in mind, thanks to the use of skylights that brighten the space throughout the day.

Materiality and Aesthetic

The materials used include dark wood, glass, and corten steel. Each of these plays a role in supporting the building's goals. Dark wood adds a touch of warmth, while glass facilitates connections between the interior and exterior environments. Corten steel introduces a modern aspect that complements the natural setting, providing a cohesive look that fits well within the rugged Icelandic landscape.

The building’s design features patterns and textures that resemble the local topography, creating an aesthetic that connects both visually and conceptually with its surroundings.

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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 €
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Final registration deadline 30 October 2025

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