Get inspired!

17,725 architecture projects

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

Exploring Subterranean Spaces Through Dark Concrete and Volcanic Formations

Authors:
Bertille Bouchard, Estelle Didier, Charlotte Malgoyre
Exploring Subterranean Spaces Through Dark Concrete and Volcanic Formations

Project in-detail

Constructed from dark concrete and volcanic materials, the design elegantly integrates with Iceland's geological landscape while serving as a gateway for exploration and education around its subterranean caves.
5 key facts about this project
01
The project is located on a fault line between the American and European tectonic plates.
02
It features a central tower designed as a gateway to the caves below.
03
The architecture utilizes dark textured concrete made with volcanic ashes.
04
Interior spaces evoke the sensory experience of natural caves.
05
Paths guide visitors through varied geological landscapes, enhancing exploration.

The design draws inspiration from the concept of a passage to the center of the Earth, a theme found in the writings of Jules Verne. Set in Iceland, the project is located on a fault line between the American and European tectonic plates, utilizing the distinct geological features of the area. The structure serves to educate and engage visitors, inviting them to explore the geological history of the landscape.

Gateway Structure

At the center of the design is a tower that functions as a gateway to the caves below. Its shape is thoughtfully crafted to enhance the visitor experience, encouraging exploration through varying effects of light and shadow. The tower’s presence is intended to blend with the nearby Hverfjall volcano, allowing it to stand out while also connecting with the natural surroundings.

Interconnected Spaces

The layout includes a series of interconnected spaces that create a winding experience for those who enter. This fragmentation allows for different activities and encourages visitors to discover the diverse geological features of the site. Paths guide individuals through dramatic landscapes, including unique volcanic formations and native flora, linking the architectural journey with the rich geological narrative of the region.

Sensory Experience

Interior spaces are designed to invoke the feeling of being in a cave, ensuring an immersive experience. Carefully placed openings provide views of the outdoors, with walls arranged to create intriguing patterns of light and shadow. This design choice enhances the atmosphere, fostering a strong connection between visitors and the natural environment.

Geological Education

An educational aspect is central to the design through an exhibition hall that focuses on the geological characteristics of the fault line. This element adds depth to the visitor experience, offering insights into Earth’s processes while reinforcing the relationship between the architecture and its geological context.

Dark textured concrete made with volcanic ashes is used to blend the structure with the environment. This material choice reflects the unique geological heritage of the site while contributing to an overall visual narrative. The careful interplay of form and materiality brings attention to the Icelandic landscape, enhancing the architectural experience.

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

MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

`
Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
Kinderspace
Kinderspace
Architecture for Children’s Development #3
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