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Volcanic Stone and Lean Concrete Enclaves That Embrace Geothermal Energy

Authors:
Vincenzo Russo, Antonio Buonaurio, Francesco Cuomo, Pier Luigi Valente
Volcanic Stone and Lean Concrete Enclaves That Embrace Geothermal Energy
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Constructed with volcanic stone and lean concrete, the design harnesses geothermal energy while creating a dynamic series of spaces for community engagement and exhibitions near Lake Myvatn.
5 key facts about this project
01
Constructed using locally sourced volcanic stone for environmental integration.
02
Features an innovative layout that fosters community interaction through an open square.
03
Utilizes geothermal energy through horizontal sondes for sustainable heating.
04
Exhibition areas are designed to capture direct views of the iconic Hverfjall volcano.
05
Incorporates reinforced concrete slabs for durability in harsh weather conditions.

The design responds thoughtfully to a complex landscape marked by fractures, gorges, and creeks. Set near Lake Myvatn, it comprises five buildings that accommodate various functions while harmonizing with the natural surroundings. Inspired by the simple form of traditional houses, the layout reflects the intricate nature of the site, promoting community engagement and interaction.

Functionality and Layout
An info-point establishes the first point of contact, positioned parallel to the main road for easy visitor access. This location allows for clear views of Lake Myvatn, enhancing the experience from the start. Two additional buildings for office space are arranged to create an open square. This square encourages social interaction and connects the everyday urban experience of Reykjahlid with the heart of the design.

Exhibition Spaces
Central to the layout is an exhibition area on two levels that offers significant views of Hverfjall volcano. The careful placement allows visitors to engage with the space and installations while appreciating the natural scenery. The flow of movement directs attention to the landmark, creating a strong connection between the architecture and its environment.

Material Considerations
Material choices reflect both function and sustainability. Key elements include horizontal sondes for geothermal heating, lean concrete, and reinforced concrete slabs, which provide necessary strength. Local materials like volcanic stone and bricks help integrate the buildings into their setting. These choices highlight a commitment to using what is available, ensuring the design resonates with its context.

Structural and Aesthetic Features
The architecture features various structural components, including glass wool panels that enhance insulation and steel beams that form a solid framework. The use of polycarbonate panels allows natural light to brighten the interiors, promoting an inviting atmosphere. These design decisions result in a cohesive environment that honors the landscape while being mindful of practical requirements.

In this design, a blend of contemporary elements and traditional forms creates an interesting architectural expression. The exhibition area, with its large windows, frames stunning views of Hverfjall volcano, encouraging visitors to connect with the beauty around them.

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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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