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Polyhedral Crystal Roof Constructed with Locally Sourced Timber and Geothermal Energy Utilization

Authors:
Yuiko Inoue, Ryo Murata, Ikumi Shimatani, Kazuki Yuri
Polyhedral Crystal Roof Constructed with Locally Sourced Timber and Geothermal Energy Utilization

Project in-detail

Constructed with a polyhedral crystal roof to optimize natural light and energy efficiency, this facility integrates geothermal resources and locally sourced materials to create a multifunctional space dedicated to wellness and community engagement.
5 key facts about this project
01
Polyhedral crystal roof structure enhances energy efficiency while maximizing natural light.
02
Central Trunk Frame design allows for flexible spatial configurations and multifunctional use.
03
Geothermal energy systems integrated for sustainable heating and cooling throughout the facility.
04
Local sourcing of materials minimizes environmental impact and supports regional craftsmanship.
05
Integrated gardens utilize geothermal heat for year-round cultivation of local flora.

The "Tropism Phyllotaxis" project is an architectural endeavor located in Iceland, designed to harmonize with the region's unique climate and landscape. The focus of this project is to create a multifunctional space that promotes wellness, community interaction, and sustainable practices. The architectural design incorporates elements that reflect the natural environment, aiming to foster a strong connection between indoor and outdoor settings.

Integration with the Environment One of the distinguishing features of this project is its adaptive design that responds to environmental conditions. The building is structured around a polyhedral "Crystal Roof," which is tailored to maximize sunlight while providing expansive views of the surrounding landscape. This roof is not just an aesthetic choice; it serves to enhance the building's energy efficiency by optimizing natural light and thermal performance. The use of glass in the facades further enriches the spatial experience by creating a seamless relationship with the outdoor environment.

The interior layout is organized around a central "Trunk Frame," making it versatile for various functions. This design element not only supports the structure but also allows for efficient spatial arrangement of the building’s primary functions, which include a brewery, therapeutic spaces, and integrated gardens. The garden areas serve both aesthetic and functional roles, using geothermal heating to support local flora and contribute to the project's overall sustainability goals.

Sustainable Practices The project emphasizes sustainability, incorporating materials that align with environmentally conscious building practices. Key materials used include wood for framing and finishes, steel for structural integrity, and thermal insulation to enhance energy performance. Concrete serves as a foundational material, ensuring stability in the geothermal context of Iceland. By utilizing locally sourced materials wherever possible, the design minimizes transportation impact, further adhering to sustainable principles.

Architectural Design Features Unique aspects of the architectural design include the integration of flexible spaces, which can be adapted based on user needs. The design allows for a fluid arrangement of interiors, facilitating varied activities from social gatherings to health and wellness treatments. This flexibility contributes to a multifunctional use of space, encouraging community engagement and interaction. The strategic positioning of windows and outdoor terraces enhances the user experience, providing tranquil views and access to fresh air, characteristic of the Icelandic landscape.

For those interested in examining the architectural dimensions in greater detail, exploring the architectural plans, sections, and designs will provide further insight into the thoughtful organization and unique approaches employed in the "Tropism Phyllotaxis" project. This examination reveals not just the aesthetics but the underlying concepts that guide sustainable architectural practices in harmony with their environment.

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The Mujassam Watan Urban Sculpture Challenge invites architects and designers to create iconic public sculptures for one of two sites in Saudi Arabia: Abu Hadriyah Road or the Tharwa Sea Front in Al-Khobar. Proposals should reflect Saudi identity, culture, and future aspirations.

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The Mujassam Watan Urban Sculpture Challenge is an international architecture and design competition inviting creatives to shape the future of Saudi Arabia’s public spaces. With a total prize fund of €50,000, the competition calls for sculptural proposals that merge cultural symbolism with innovative design, offering participants a chance to see their concepts brought to life in a rapidly transforming national context.

Organised by Buildner in partnership with the Mujassam Watan Initiative, the challenge focuses on two prominent locations: Abu Hadriyah Road, a major highway and gateway into the Eastern Province, and the Tharwa Sea Front in Al-Khobar, a pedestrian-focused waterfront district. Designers must select one site and develop a sculpture that engages with its surroundings—whether addressing the fast-paced dynamism of a transit corridor or creating moments of interaction along a coastal promenade.

Proposals should be bold, site-specific, and rooted in narrative—drawing on themes such as heritage, national identity, transformation, and dialogue. Environmental responsiveness, material durability, and feasibility are strongly encouraged, as winning projects may be selected for actual construction.

Each submission must include four A2 landscape presentation boards, a cover image, and a written project description. The competition is open to professionals and students alike, working individually or in teams of up to four people. No professional license is required.

Registration is open until July 24, 2025, with final submissions due by August 27, 2025. Winners will be announced on October 1, 2025.

Mujassam Watan Urban Sculpture Challenge

Design iconic urban sculptures for the prestigious Mujassam Watan competition and compete for 50,000 €

50,000 € PRIZE project COMPETITION
Prize 50,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 24 July 2025

Enter an open architecture
competition now

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