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Vertical Geothermal Structure Embracing Natural Stone and Reinforced Concrete as a Cultural Hub

Authors:
Marcos Narváez, Hugo Narváez
Vertical Geothermal Structure Embracing Natural Stone and Reinforced Concrete as a Cultural Hub
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Harnessing geothermal energy and incorporating sustainable wood, the tower integrates seamlessly with its natural stone surroundings to serve as a visitor center that educates and connects travelers to the rich cultural heritage of Iceland.
5 key facts about this project
01
Kvennagjá Cave serves as a natural backdrop, enhancing the project's cultural significance.
02
The structure employs geothermal energy for efficient heating, aligning with sustainability goals.
03
Reinforced concrete integrates with vertical design elements that mimic local geological formations.
04
Observation platforms provide panoramic views, fostering a deeper connection with the landscape.
05
Sustainable wood sourced from local forests enhances warmth while maintaining environmental standards.

The *Iceland Cave Tower* is an architectural project designed as a cultural and tourism hub near the Kvennagjá Cave in Iceland. This structure represents a fusion of contemporary design principles with local folklore, reflecting the unique geological and cultural characteristics of the region. The primary function of the tower is to serve as a visitor center, providing information and spaces for relaxation while facilitating engagement with its environment.

The architectural design incorporates multiple floors, featuring observation platforms that offer expansive views of the surrounding landscape. The interior layout promotes accessibility and movement, with designated areas for a café, visitor information, and administrative offices. Structural elements emphasize durability, using reinforced concrete as the primary material. The façade is characterized by its angular forms, which resonate with the natural rock formations typical of Iceland.

Sustainability is a key consideration in the design, with integrated features such as geothermal heating and energy-efficient materials. The use of double-glazed windows enhances insulation, allowing for natural light while minimizing energy consumption. The project aligns with contemporary practices in architecture that prioritize environmental responsibility.

Unique Features of the Design

A notable aspect of the *Iceland Cave Tower* is its integration of local folklore into the architectural narrative. The design is inspired by the legend of a master elf who conjures a tower from the landscape, adding a cultural context that enriches the visitor experience. This storytelling element distinguishes the tower from conventional visitor centers, linking architecture directly to the myths and identity of Iceland.

The verticality of the building plays a significant role in its architectural presence. It is designed to mimic the surrounding cliffs, creating a structured response to the rugged topography. This approach allows the building to blend harmoniously with its context while also serving as a landmark.

Another innovative feature is the pursuit of operational efficiency through sustainable design. The incorporation of passive solar strategies and high-performance insulation aims to reduce energy consumption significantly, setting a standard for future developments in similar environments. Moreover, the selection of materials, including sustainably sourced wood and natural stone, highlights a commitment to local resources.

Architectural Elements and Spatial Organization

The *Iceland Cave Tower* is organized into distinct functional areas that facilitate various visitor activities. The observation platforms are strategically situated to maximize views, enhancing the interaction between visitors and the natural landscape. Communal areas, such as the café and waiting space, are designed to encourage social interaction and relaxation.

The project also incorporates educational elements, providing information about local geology, wildlife, and cultural heritage. This dual purpose enhances the educational outreach of the tower while serving the needs of tourists.

To explore the *Iceland Cave Tower* further and gain deeper insights into its architectural plans, sections, designs, and ideas, readers are encouraged to examine the project presentation. Doing so will provide a comprehensive understanding of the various design elements and unique aspects that define this architectural endeavor.

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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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