Get inspired!

17,725 architecture projects

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

Mirrored Reflections in Natural Rock: a Gateway to Iceland's Underground Kingdom

Authors:
Jorge Duarte Torre, Benjamín Peniche Calafell, Rodrigo Carazo Ortíz
Mirrored Reflections in Natural Rock: a Gateway to Iceland's Underground Kingdom
Explore the full project presentation!
Subscribers only
With a ring of mirrors reflecting Iceland’s stunning natural phenomenon and a central tower that invites introspection, the design provides an immersive space that deepens the visitor's connection to the historic Grjótagjá caves.
5 key facts about this project
01
A ring of mirrors captures and reflects the northern lights, enhancing the visual experience of the site.
02
The central tower serves as a focal point for exploration, guiding visitors through the space.
03
Polished stainless steel facades create dynamic interactions with the changing landscape.
04
Natural rock is incorporated to mimic the local environment and support native plant growth.
05
The design utilizes geothermal heating principles for energy efficiency in a cold climate.

The project is located in the unique landscape of Iceland, where it merges architecture with the natural world. Designed as a journey of perception, it guides visitors through a portal into an underground kingdom. The overall concept emphasizes the connection between built environments and their geological contexts, creating a dialogue that reflects the surrounding nature.

Reflective Engagement

A ring of mirrors forms a key feature of the design. These mirrors capture and reflect the colors of the sky and the landscape, including the northern lights. This reflective element enhances the visitor experience, encouraging active engagement with the surroundings. As the natural light changes throughout the day, so too does the perception of the space, allowing architecture and nature to interact in an ongoing narrative.

Central Exploration

At the center of the design is a tower that serves as a focal point. This structure encourages visitors to explore their relationship with the Grjótagjá caves. The tower, along with the surrounding ring, allows for easy movement between the interior and the exterior. This connection with the landscape makes the experience of visiting feel more cohesive and integrated.

Material Considerations

Materials play an important role in the design. Polished stainless steel facades reflect the landscape, creating a visual connection with the environment. Concrete is used for its strength and energy-saving qualities, ensuring comfortable indoor spaces. Natural rock is also incorporated, which provides protection from the elements and supports the growth of local plants, further connecting the structure to its surroundings.

Bioclimatic Design Features

The design includes elements aimed at improving energy efficiency and comfort. The excavated site protects visitors from harsh weather while maintaining warmth through natural thermal properties. Skylights are positioned to let in light and reduce the need for artificial illumination. A geothermal heat exchange system takes advantage of stable underground temperatures to enhance comfort inside the building.

As visitors move through the space, the interplay of light and reflection creates an inviting atmosphere. The colors of the landscape and sky seem to come alive within the interior, deepening the sense of connection to the natural world.

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

Enter an open architecture
competition now

The Home of 
Shadows
The Home of Shadows
The light studies. Edition #4
The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5
MICROHOME 2026
MICROHOME 2026
100,000 € Prize Fund / Kingpsan Edition #11
The Next House: USA
The Next House: USA
20,000 USD Prize
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

The Next House: USA — A Global Call to Reimagine the American Suburb

`
Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 18 February 2026

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
Rome 
Rain Rooms

Design a rain room for Rome

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 14 January 2026
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
Iceland 
Slow Sauna

Design slow sauna in Iceland

project COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 28 January 2026
The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 18 February 2026

Recurring architecture competitions

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
Advance registration deadline 14 January 2026
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
Advance registration deadline 15 January 2026
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
Advance registration deadline 22 January 2026
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
Final registration deadline 4 February 2026
new
MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Early bird registration deadline 11 February 2026
new
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
Early bird registration deadline 26 February 2026

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