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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

Project in-detail

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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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

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