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Curved Structure Integrating Black Sand Aggregate and Rainwater Collection As A Visitor Center in Iceland

Authors:
Rebekah Schaberg, Ugo Ribeiro, Florian Kosche, Mattia Carioti
Curved Structure Integrating Black Sand Aggregate and Rainwater Collection As A Visitor Center in Iceland

Project in-detail

Emphasizing rainwater collection and the use of black sand aggregate, the design harmonizes with its volcanic surroundings, serving as a visitor center that enhances the experience of the Grjótagjá caves in Iceland.
5 key facts about this project
01
Emphasizes rainwater collection with a specially designed roof system.
02
Incorporates black sand aggregate into the concrete mix for aesthetic cohesion.
03
Features a curved structure to mirror the surrounding volcanic landscape.
04
Utilizes locally sourced materials to minimize environmental impact.
05
Incorporates extensive glass panels for optimal natural light and views.
Ævintýri is an architectural project located near the Grjótagjá caves in Iceland. This design functions as a visitor center that facilitates access to the caves while providing amenities such as ticketing, information, and leisure areas. The fundamental intention behind Ævintýri is to create an engaging experience for visitors, merging natural exploration with architectural expression.

The building's form is characterized by sweeping curves and an elevated viewing platform, reaching 30 meters above the ground. This approach not only utilizes the site’s topography but also enhances the visitor experience by offering panoramic views of the surrounding volcanic landscape. The design prioritizes aesthetics and functionality, ensuring the center meets the needs of visitors while remaining rooted in its environment.

Material selection plays a key role in the project. Ævintýri employs concrete, timber, shingle cladding, and glass to create a harmonious balance between structural integrity and visual allure. The use of locally sourced materials minimizes the environmental impact and reinforces the connection to the site's geological past. The architectural composition integrates black sand aggregate with concrete to reflect regional characteristics, ensuring cohesion with the surrounding landscape.

The comprehensive design creates a sensory experience, leading visitors from ticketing through the facility and eventually toward the caves. Large windows in the lounge area promote natural light and an unobstructed view of the surrounding terrain, enhancing the overall atmosphere of connection to the environment.

Innovative Approaches to Environmental Integration

A key aspect of the Ævintýri project is its commitment to sustainability and environmental harmony. The building's roof is designed to capture rainwater, which is then filtered and repurposed for practical use within the facility. Such design choices exhibit an understanding of current environmental challenges, showcasing an architectural commitment to reducing carbon footprints associated with construction and operation.

Furthermore, the structure's footprint is intentionally minimal, allowing for natural movement across the landscape without significant disruption to local ecology. This thoughtful design approach ensures that natural and built environments coexist symbiotically, providing visitors with a sense of immersion in the unique geological context of the Grjótagjá area.

Architectural Features and Spatial Dynamics

The design of Ævintýri reflects an acute awareness of spatial dynamics and visitor flow. The strategic placement of service areas is concealed within the base of the structure, promoting a clean aesthetic and encouraging exploration without physical barriers. Pathways guide visitors through the site, connecting them with both the natural surroundings and the structured experience within the facility.

The use of timber not only contributes to structural stability but also introduces warmth to the interior space. The combination of natural light from vast glass panels and the inviting properties of timber fosters an environment conducive to relaxation and engagement.

Explore the architectural plans, sections, and design details of Ævintýri for a deeper understanding of how this project integrates architectural ideas with its unique environmental context. Engaging with the project presentation will provide further insights into its functionality and design principles.
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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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