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Geothermal Engagement Through Thermal Glass and Natural Voids

Authors:
Nikolaos Koutsoumalis, Alina Anastasiadi, Haris Chaitas
Geothermal Engagement Through Thermal Glass and Natural Voids
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Active volcanoes inspire a unique design that incorporates geothermal elements and thermal glass, creating an engaging exhibition space dedicated to the exploration of geological processes.
5 key facts about this project
01
Integration of a geothermal system that channels steam from the earth's surface.
02
Void spaces incorporated to symbolize volcanic sublimation processes.
03
Extruded crosses mark the locations of active volcanoes within the site.
04
Architectural flow merges pathways with buildings, encouraging exploration.
05
Use of thermal glass enhances energy efficiency while maintaining visibility.

The design explores the relationship between volcanic energy and the experience of space, finding its setting in a landscape shaped by geological forces. It functions as an open exhibition area where visitors can learn about volcanoes directly while enjoying various amenities. Highlights include exhibition halls, a restaurant, and a sauna, all linked by a clear architectural vision that communicates the natural themes of the site.

Location and Mapping

The site features an illustrated map of active volcanoes, scaled to fit the landscape. Each volcano is marked with an extruded cross, emphasizing its significance. A geothermal system is incorporated into the design, allowing steam to rise from below the ground. This connects visitors to the natural phenomena of the area, creating a tangible relationship with the geological context.

Sublimation and Void Spaces

Central to the design is the concept of sublimation. This refers to how solid materials can change directly into gas when exposed to high temperatures, leaving behind voids that symbolize their original forms. In the layout, these voids are strategically positioned among built elements, enhancing the narrative of transformation and providing engaging spatial experiences for guests.

Architectural Flow and Connectivity

The idea of volcanic flux describes how buildings and pathways interact across the site. The layout encourages a continuous flow, guiding visitors through a landscape that invites exploration. Compact structures are paired with wider forms, allowing for natural movement and interaction. The design simplifies navigation, encouraging guests to engage with both the architecture and the natural environment.

Material Choices and Aesthetic Integration

Specific materials are carefully selected to support the design's vision. Thermal glass helps regulate temperature within the spaces, ensuring comfort for visitors. Metal frames offer structural support while aligning with the overall aesthetic principles. Additionally, wood cladding brings warmth and a natural quality to the buildings, reinforcing the connection to the volcanic landscape.

The design balances space and environment efficiently. Visitors enjoy an engaging series of areas where the dialogue between natural elements and constructed forms is prominent. Integration of outdoor and indoor settings promotes a deeper understanding of the geological processes at work. This thoughtful approach ensures that each space contributes to the overall experience, making the connection between nature and architecture clear and accessible.

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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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Competition organisers

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.

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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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