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Geothermal Visitor Center With Expansive Glazing and Stacked Concrete Volumes

Authors:
Pablo Zuniga, Rodolfo Schlager
Geothermal Visitor Center With Expansive Glazing and Stacked Concrete Volumes

Project in-detail

With its layered concrete volumes and expansive glass facades that seamlessly blend with the geothermal landscape, the center serves as a guiding beacon for visitors exploring Iceland's unique geological features.
5 key facts about this project
01
Designed to harmonize with the geothermal landscape, the structure features expansive glass facades that minimize visual obstruction of the surrounding scenery.
02
Stacked concrete volumes enhance structural resilience while embodying the tectonic influences of the region.
03
Sustainable systems, including rainwater collection and solar panels, are integrated into the architectural framework to support environmental stewardship.
04
The building's design respects existing topographical features, ensuring minimal disruption to the fragile ecosystem.
05
Interior spaces utilize warm wooden finishes to create a contrast with the industrial exterior, enhancing visitor comfort while maintaining a connection to nature.
The Cave Tower is an architectural project situated in the unique landscape of Grjótagjá, Iceland, an area recognized for its geothermal features and rugged terrain. This structure serves a multifaceted role, acting as a visitor center, information hub, and observation point, while establishing a dialogue with the natural environment. The architecture of the Cave Tower is a thoughtful response to the stunning geological context, acknowledging the rich cultural and natural heritage of the Icelandic landscape.

At its core, the design of the Cave Tower is inspired by the interplay between tectonic movements and the topography of Iceland. The architectural concept reflects the unique geological forces at work in the region, with the structure symbolically representing the divergence of the North American and Eurasian Plates. This connection to the earth is pivotal, as the building is not merely a physical structure, but an embodiment of the local landscape, inviting visitors to engage with and appreciate the natural surroundings.

Functionally, the Cave Tower is designed to accommodate a variety of activities and experiences. The project includes expansive viewing terraces that offer panoramic vistas of the Hverfjall volcano and the Mývatn lake, allowing visitors to immerse themselves in the scenery. Interior spaces feature an information center that provides context and education about the geological phenomena of the area. A café adds to the visitor experience, creating a welcoming environment for relaxation and social interaction. The careful distribution of these functions enhances the usability and accessibility of the site, ensuring it meets the diverse needs of its visitors.

The architectural elements of the Cave Tower are characterized by their simplicity and effectiveness. The structure is comprised of multiple stacked volumes, which maintain a contemporary aesthetic while resonating with the rugged landscape. Concrete is a primary material, chosen for its resilience against the unpredictable Icelandic weather and its ability to provide thermal efficiency. This material is complemented by warm wooden finishes that create a contrast, infusing the space with a natural quality. Expansive glass panels are integrated to maximize natural light and frame breathtaking views, allowing the landscape to become an integral part of the visitor experience. Additionally, aluminum plates are utilized for their durability, contributing to the building’s overall modern appearance while ensuring long-lasting performance in a harsh climate.

One of the standout aspects of the Cave Tower is its commitment to sustainability. The project incorporates solar energy systems and water management strategies, including rainwater collection for reuse. These considerations reflect a conscientious approach to environmental impact, emphasizing the importance of ecological responsibility in architectural design.

Moreover, the integration of the building with the site's topography has been executed thoughtfully. The design preserves existing walking trails and aligns with the natural contours of the land, which minimizes disruption to the fragile environment. This approach not only enhances the aesthetic appeal of the project but also reinforces the idea of architecture as a supportive element rather than an imposition on nature.

The Cave Tower stands out not just for its functionality but also for its unique ability to foster a connection between people and the land. By promoting engagement with the geological features and natural beauty of Iceland, the architecture serves as a bridge, inviting visitors to explore and understand the area more deeply.

This project exemplifies an understanding of architecture that values interaction with the environment, where careful material selection meets innovative design approaches to create a meaningful experience. Readers interested in understanding the intricate details of the Cave Tower project are encouraged to explore architectural plans, sections, and designs to gain deeper insights into this thoughtful architectural endeavor.
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100,000€ Prize / 2025

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

Microhome

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € PRIZE FUND / KINGPSAN EDITION #10 IDEAS COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Early bird registration deadline 22 May 2025
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