Get inspired!

17,725 architecture projects

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

Volcanic Stone Facade and Grass Roofs Supporting Sustainable Dining in Iceland

Authors:
Horacio Goitre, Gonzalo Zegarra, Mateo Peschiera, Mariana Nájar
Volcanic Stone Facade and Grass Roofs Supporting Sustainable Dining in Iceland
Explore the full project presentation!
Subscribers only
Constructed with volcanic stone and topped with grass roofs, the design integrates local materials to create a sustainable dining experience that emphasizes community and environmental sensitivity in Iceland.
5 key facts about this project
01
Constructed with volcanic stone, enhancing insulation and environmental integration.
02
Features grass roofs to blend with the natural landscape and provide thermal efficiency.
03
Includes a cultivation lab dedicated to pesticide-free agricultural practices.
04
Design incorporates expansive views of Hverfjall volcano and Mývatn Lake.
05
Community-focused plaza fosters social interaction and engagement among visitors.

The Volcánico Greenhouse Restaurant is located in Iceland, where it connects with the surrounding landscape while offering both dining and agricultural experiences. The design concept features two primary structures that focus on food production and hospitality. Incorporating traditional Icelandic architectural elements alongside modern practices, the project reflects the local culture and addresses environmental concerns.

Architecture Concept

The layout consists of two distinct volumes: one for the restaurant and another for the cultivation lab. This allows for efficient use of the site's natural features, creating a functional connection between the two. A central plaza encourages social interaction, serving as a gathering space for visitors. Observation decks and fire pits enhance the outdoor atmosphere, promoting a blend of indoor and outdoor experiences.

Materials and Techniques

The construction relies on traditional materials such as volcanic stone, earth, and grass roofs. These elements provide essential insulation and are well-suited to the harsh Icelandic climate. The incorporation of reinforced concrete and prefabricated metallic structures ensures durability and efficiency in the building process while maintaining ties to local architectural methods.

Landscaping and Sustainability

Landscaping is designed to incorporate native vegetation, helping the project blend into its natural surroundings. The initiative aligns with Iceland's environmental goal of increasing forest cover. The cultivation lab focuses on sustainability by operating without carbon emissions and avoiding pesticides. This approach creates a cycle of agricultural production that supplies fresh ingredients to the restaurant.

Design Details

The eastern facade features a wall made from volcanic lava stone, enhanced with moss-like plants that offer insulation and visual interest. This aspect of the design fosters a connection between the building and the landscape. The expansive views from the remaining facades frame significant landmarks, such as the Hverfjall volcano, reinforcing the relationship between the architecture and its geographic context.

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