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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

Project in-detail

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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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

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
Final registration deadline 25 September 2025

Enter an open architecture
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