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Cave-Like Experience with Twisting Concrete and Steel Structure

Authors:
Anya Jeffery, Nicole Dyer, Yutaro Sakai, Kyle Hoak
Cave-Like Experience with Twisting Concrete and Steel Structure
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The twisting concrete and steel form creates a cave-like environment that seamlessly integrates with Mývatn's landscape, serving as a visitor center inviting exploration of Iceland's natural beauty.
5 key facts about this project
01
The twisting structure mimics glacial river flows unique to Iceland.
02
An elevated boardwalk system enhances winter accessibility and safety.
03
Curved interior walls create a cave-like ambiance for visitors.
04
A central skylight allows for dynamic natural light throughout the day.
05
Weatherproofed aluminum panels ensure durability against harsh climate.

The GRJÓTAGJÁ Visitor Center is located in Mývatn, Iceland, surrounded by a unique landscape shaped by volcanic activity and glacial movements. This building serves as a hub for visitors to engage with the natural environment. Designed with a concept based on twisting forms, the structure reflects the area's geological features, characterized by curves and undulations that are typical of Iceland's terrain.

Design Concept

The design revolves around the idea of twisting, borrowing inspiration from the natural formations found in Iceland. It includes a concrete base that is partially embedded in the ground, a framework made of light gauge steel, and a spiral ramp with an elevator shaft and tower. This arrangement allows for open spaces that encourage exploration while remaining connected to the surrounding landscape.

Exterior Features

The visitor center incorporates an elevated path system made from textured bar grating. This design provides good traction in winter, helping visitors navigate through snow and ice safely. The paths connect various sections of the center, promoting a smooth flow between the building and its natural setting, allowing visitors to experience the landscape more fully.

Interior Experience

Inside, the design is reminiscent of exploring natural caves. Walls curve and ceilings slope, creating a feeling of movement and discovery. A central skylight allows natural light to filter into the main areas, enhancing the cave-like quality while creating changing patterns of light and shadow throughout the day.

Materials and Sustainability

Materials have been selected for strength and sustainability. The concrete provides a solid foundation, while light gauge steel supports the overall structure. Weatherproofed aluminum panels cover the exterior, ensuring durability against the harsh Icelandic climate. Photovoltaic panels have been integrated into the design, contributing to the building’s energy needs and reinforcing its commitment to sustainability.

The design culminates in a blend of interior and exterior spaces. The curved walls and ceilings create an immersive environment that encourages visitors to engage with both the building and the surrounding natural beauty. Each element of the center has been thoughtfully considered to enhance the overall experience while respecting the uniqueness of the landscape.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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