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Subterranean Retreat with Basalt and Timber Integration

Authors:
Jesse Mowbray, Shaun Weisbrodt, Christina Sun
Subterranean Retreat with Basalt and Timber Integration
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With a unique subterranean layout that incorporates locally sourced basalt and timber, the design fosters an intimate connection with the surrounding landscape while serving as a private guest residence.
5 key facts about this project
01
Subterranean design creates a unique immersive experience.
02
Locally sourced basalt enhances environmental integration.
03
Heavy anchored stone walls define intimate interior spaces.
04
Timber pods allow natural light to filter throughout.
05
Each guest pod is designed as a cozy hygge retreat.

The project near Lake Myvatn reflects a modern approach to the traditional Icelandic longhouse, blending with its natural surroundings. Situated among birch trees and open land, it serves as a residence designed to foster a strong connection with the landscape. The design emphasizes creating a unique experience for those who inhabit the space, making use of the area's natural beauty while providing practical living areas.

Spatial Configuration

The longhouse spans below ground level, supported by vertical timber frames that define its structure. This choice creates a connection to the earth, making occupants feel closer to nature as they enter. Semi-opaque screens installed throughout allow soft light to filter into the interior, enhancing the visual relationship between the inside and outside.

Material Connection

Inside, the design utilizes heavy anchored stone walls to create smaller, intimate areas around an expansive open space. Shafts of light enter through elevated timber sections, adding variation to the environment throughout the day. This careful arrangement of materials highlights the importance of natural light and enriches the overall experience within the residence.

Natural Engagement

An oculus positioned in the walls provides framed views of nearby water, reinforcing the bond with the landscape. This feature not only adds an aesthetic touch but also invites the outside world in, encouraging occupants to connect with nature. The spa area, designed to evoke the feeling of a natural fissure in the rock, invites the eye upward, drawing attention to the landscape beyond.

Circulation and Interaction

Private guest pods are accessible via a timber stairway leading to a suspended walkway. This pathway connects to smaller branches that guide users through the space. This design enhances the experience by encouraging exploration and highlighting the relationship between various areas. Each pod offers a cozy environment, allowing a personal connection to the wider surroundings.

Natural light filtering through timber sections creates warm and inviting spaces, highlighting quiet corners throughout the interiors.

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

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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.

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