Get inspired!

17,725 architecture projects

Learn from past Buildner architecture competition participants through our extensive project library, curated over more than 15 years!

Diamond-Coated Greenhouse with Steel Cladding for Sustainable Dining

Authors:
Sean Chan, Isaac Li, Clover Chau, Ariel Chen
Diamond-Coated Greenhouse with Steel Cladding for Sustainable Dining
Explore the full project presentation!
Subscribers only
The diamond-coated facade and strategic use of steel cladding create a sustainable greenhouse restaurant that highlights local food production while offering diners a direct view of their meal's origins.
5 key facts about this project
01
Yggdrasil-inspired design reflects Norse mythology.
02
Diamond coating on facade enhances natural light diffusion.
03
Greenhouse structure allows diners to view food growth.
04
Steel cladding contributes to structural durability and modern aesthetics.
05
Polyurethane foam insulation maintains energy efficiency year-round.

Yggdrasil Gróðurhús is a greenhouse restaurant located in Iceland, bringing together food, nature, and design. Named after the sacred tree in Norse mythology, the project reflects a deep connection to local culture and ecology. The restaurant focuses on creating a dining experience where visitors can see the origins of their meals, enhancing awareness of local food production and sustainability.

Architectural Form and Layout

The design carefully considers how diners interact with their environment. The layout places the dining areas in close proximity to the greenhouse, allowing guests to observe the cultivation process of the food they consume. This arrangement creates a direct link between the act of eating and the source of food, enriching the overall experience and fostering a sense of community.

Materiality and Performance

Materials chosen for Yggdrasil Gróðurhús are vital to its function and appearance. A steel cladding covers the exterior, offering a robust structure while giving a modern look. The presence of double-glazed windows helps to control temperature, ensuring comfort for diners. This design choice is particularly important in Iceland, where climate conditions can be quite harsh.

Ambient Light and Atmosphere

One notable aspect of the building is its unique diamond-like coating. This feature allows natural light to filter through, creating a gentle and welcoming atmosphere inside. Instead of harsh sunlight, the diffused light contributes to a peaceful dining experience. The interplay of light and shadow connects the indoor space with the outside world, enriching the ambiance.

Innovative Insulation Strategies

To maintain a comfortable climate throughout the year, innovative insulation methods have been employed. Polyurethane foam insulation is used to keep heat in during the cold months and cool air in during warmer seasons. The choice of insulation addresses the challenges presented by Iceland’s variable weather while enhancing energy efficiency.

Daylight streams through the diamond facade, casting soft patterns on the interior surfaces, creating a calming environment for guests. This design encourages diners to appreciate not just their meals, but also the natural world that produces them.

Noticed a mistake?
Highlight the text and click on
Noticed a mistake

Enter an open architecture
competition now

The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
Kinderspace
Kinderspace
Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
The Home of 
Shadows
The Home of Shadows
The light studies. Edition #4
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5

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

`
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.

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

Open architecture competitions

  • Closest deadline first
  • Project competitions first
    Selected winning projects have the potential to be constructed
  • Ideas competitions
    Experimental competitions with the focus on pushing the boundaries of creativity
new
Iceland 
Slow Sauna

Design slow sauna in Iceland

project COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 26 November 2025
Concrete 
Pavilion

Design a concrete pavilion

Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 27 November 2025
new
Pavilion Atlas 2026

Design a story of your country

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 21 January 2026

Recurring architecture competitions

new
The Architect’s 
Stair

Take a step and make a statement!

Take a step and make a statement! Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 15 October 2025
Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 16 October 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
new
The Home of 
Shadows

Design a home with no artificial lighting

The light studies. Edition #4 ideas COMPETITION
Prize Monetary award
Eligibility OPEN TO ALL
Early bird registration deadline 5 November 2025
The Last 
Nuclear Bomb Memorial

Design a memorial that speaks to the cause of ending all nuclear weapons programs

Edition #6 ideas COMPETITION SILENT CONTEST For this competition, NO DESCRIPTION TEXT is allowed. The architecture ideas must be communicated strictly with visuals.
Prize Monetary award
Eligibility Open to all
Final registration deadline 13 November 2025
new
The Architect's 
Chair

Take a seat and make a statement!

Take a seat and make a statement! Edition #5 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 20 November 2025
Hospice - 
Home for the 
Terminally ill

Design a safe and supportive space to those struggling with a terminal illness

Edition #5 ideas COMPETITION
Prize 10,000 €
Eligibility Open to all
Final registration deadline 26 November 2025
Museum of 
Emotions

Use architecture to create different emotional states

Edition #7 ideas COMPETITION SILENT CONTEST For this competition, NO DESCRIPTION TEXT is allowed. The architecture ideas must be communicated strictly with visuals.
Prize Monetary award
Eligibility Open to all
Final registration deadline 27 November 2025
Re:Form - 
New Life 
for Old Spaces

Choose a site—used, abandoned, or forgotten—anywhere in the world, and give it a new purpose

Edition #2 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 3 December 2025

Media, partners and clients

To view this project in detail,
please log in with your
Architects’ Network Plus account.
Subscription instantly unlocks all the architecture projects plus other member-only benefits:
  • Access the 17,725 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in

This website uses cookies to improve user experience and gather usage statistics.

More information is available in our Privacy & Cookie policy