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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 Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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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 €
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Final registration deadline 30 October 2025

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