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Cave-Inspired Observation Structure with Louver Facade and Sustainable Features

Authors:
Jungdon Jo, Wongi Choi, Hyun Young Kim
Cave-Inspired Observation Structure with Louver Facade and Sustainable Features
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Inspired by the natural formations of the Grjotagja cave, the structure features a carefully crafted louver facade and a spiral ramp that culminates in an observation platform, providing visitors with a unique perspective of the surrounding landscape.
5 key facts about this project
01
Inspired by the natural contours of the Grjotagja cave.
02
The design includes a spiral ramp that mimics cave pathways.
03
Louver facade maximizes natural light while providing weather protection.
04
Geothermal heating enhances energy efficiency and comfort.
05
Observation platform offers 360-degree views of the landscape.

The Louver Hut is located in the Grjotagja cave area of Iceland. It is designed to offer visitors a unique experience that connects them to the surrounding natural landscape. Taking inspiration from the cave's atmosphere, the hut creates a sense of entering a natural formation. Its design emphasizes a strong relationship between people and the environment, blending function with beauty.

SPIRAL RAMP

A notable feature of the design is the spiral ramp, which guides visitors upward to the observation platform. The ramp resembles the winding paths found in caves, creating an engaging journey that changes how visitors experience the space. As they ascend, visitors can feel a sense of movement that builds excitement, culminating in a wide view of the landscape from the top.

LOUVER FACADE

The louver facade plays a crucial role in the building’s design. It is made to withstand the tough weather conditions of Iceland while also enhancing the amount of natural light that enters the structure. This feature allows for bright interiors during the day, creating a welcoming atmosphere that encourages visitors to spend time inside.

ENTRANCE AND LIGHT

Careful attention has been given to the entrance placement, which is designed to let in significant daylight. By maximizing natural light, the entrance enriches the inside space and fosters a connection to the outside. This approach reduces the need for artificial lighting, creating a more energy-efficient design that respects the surroundings.

SUSTAINABILITY AND FUNCTIONALITY

Sustainability is an important consideration in the design, with natural ventilation systems and geothermal heating incorporated into the structure. The layout consists of both private and public spaces, ensuring that all visitors feel comfortable and welcome. This thoughtful design not only improves the experience for those who visit but also demonstrates a commitment to environmental care.

The observation platform stands at the highest point of the design, offering sweeping views of the remarkable Icelandic terrain. Visitors can appreciate the landscape while also feeling the effects of the carefully considered architectural form.

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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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