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Basalt Cladding and Engineered Wood Form a Green Lung for Community Engagement

Authors:
Misak Terzibasiyan, Georgios Koliotsas, Shadi Hashemian, Amir Feizinezhadgheshlaghi
Basalt Cladding and Engineered Wood Form a Green Lung for Community Engagement
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With a central greenhouse acting as the 'green lung' and walls clad in basalt, the design integrates community space and waste management functions, emphasizing sustainability in a location defined by striking natural beauty.
5 key facts about this project
01
The building includes five entrances to the greenhouse for enhanced accessibility.
02
A stepped planter within the greenhouse serves dual purposes for agriculture and gatherings.
03
Basalt cladding integrates the structure visually with its rugged surroundings.
04
Engineered wood construction allows for low emissions and recyclability.
05
The design features a central greenhouse that improves indoor air quality.

Greenhouse 9 is located near Lake Myvatn in Iceland and serves as a community house that incorporates a greenhouse along with waste management facilities. The design emphasizes sustainability and aims for a low environmental impact while fostering community engagement. The concept builds on the relationship between the building and its natural setting, creating a structure that fits well with the surrounding landscape.

Site Integration

The building is carefully positioned between a natural slope and an existing waste collection area. This location enhances its visual connection to the landscape and ensures easy access for users. A key feature of the design is the central volume, which is intentionally removed to create an open area for the greenhouse. This space acts as the 'green lung' of the building, contributing to better air quality and linking various interior spaces.

Circulation and Accessibility

Circulation within Greenhouse 9 is thoughtfully organized around the central greenhouse. This layout allows for smooth movement between different functional areas. There are multiple entry points, including one main entrance for the primary building, one for the waste management section, and five access points to the greenhouse. This arrangement makes it easy for users to navigate the building while enjoying a sense of openness.

Materiality and Environmental Considerations

Materials are crucial to achieving sustainability goals. The structure uses engineered wood, which is known for its low emissions and ability to be recycled. Basalt is chosen for the exterior cladding, tying the building visually to the surrounding environment, while turf is used on the roof to enhance ecological integration. Rockwool provides insulation, promoting energy efficiency and supporting the building's environmental objectives.

Spatial Flexibility

Greenhouse 9 includes flexible communal spaces that adapt to different needs. Sustainably sourced wood panels are incorporated into the design, allowing areas to be opened up or closed off as required. This adaptability encourages interaction among community members while accommodating various functions throughout the building.

In the greenhouse, a stepped planter serves both agricultural functions and as a gathering space, creating a connection between the structure and its natural environment. The design invites users to engage with their surroundings, promoting a sense of community and environmental awareness.

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

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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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