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Basalt-Inspired Structure with Scorched Larch and Geothermal Features

Authors:
Adam Clark, Nick Pearce, Jessica Wilkie
Basalt-Inspired Structure with Scorched Larch and Geothermal Features
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Inspired by volcanic basalt formations, the structure utilizes scorched larch and geothermal systems to create a cohesive visitor experience centered around exploring Iceland's unique caves.
5 key facts about this project
01
Inspired by local basalt formations, the tower's design features a hexagonal geometry.
02
A fault line bridge connects the visitor centre to the lookout tower, reflecting tectonic features.
03
Scorched larch cladding enhances durability while blending with the natural landscape.
04
Geothermal heating systems provide efficient climate control throughout the structure.
05
The metal walkways allow safe access to the caves without disrupting the geological formations.

The Vogagjá Project in Iceland includes a visitor centre, lookout tower, and café, all designed to fit within the volcanic landscape. The concept is inspired by the unique geometric shapes of basalt formations found throughout the region. The design aims to create a connection between the built environment and the natural world. Each element serves a particular purpose and enhances the overall experience for visitors, who come to learn about the geology of the area.

Visitor Centre

The visitor centre is the first stop, located at the end of a gentle steel ramp leading from a car park made of volcanic ash. This facility is designed as a pod that includes ticketing services, management offices, and an audio-visual exhibit on the caves’ history and geology. The arrangement encourages visitors to engage with the information presented, preparing them for the exploration ahead.

Lookout Tower

The lookout tower plays a central role in the project, approached via a fault line bridge that reflects the tectonic activity in the area. The tower’s design resembles a hexagonal basalt column. Inside, visitors ascend through an open grid stair system that provides varied views as they climb. At the top, a panoramic observation point allows a full view of the surrounding volcanic landscape. This upward journey reinforces the geological context of the site.

Cave Access and Café

Returning from the tower involves taking a glass lift, which provides accessible options for all visitors. This lift connects to metal walkways leading into the caves, ensuring safe navigation around the natural formations. After exploring the caves, visitors arrive at a café, designed as a comfortable space that encourages social interaction. This inviting area offers refreshments and allows guests to reflect on their overall experience.

Sustainability and Materials

The project emphasizes low-tech construction methods while focusing on sustainability and energy efficiency. Scorched larch timber is used for the cladding of the pod structures. This choice combines practicality with a visual connection to the landscape. Additionally, pre-fabricated super insulated panels support a lightweight steel frame, achieving airtight construction in line with Passivhaus standards. Geothermal technology serves as the heating source, while rainwater harvesting systems address non-potable needs, reflecting a commitment to environmental care.

The design is also mindful of interior details. The café features natural finishes that echo the surrounding landscape. This focus on natural elements helps strengthen visitors’ connection to the site, creating a space for contemplation framed by Iceland’s distinct topography.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

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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