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Elevated Viewing Platform and Cross-Laminated Timber in a Geothermal Visitor Center

Authors:
Sari King, Ryan Darius, Ching-han Chiang
Elevated Viewing Platform and Cross-Laminated Timber in a Geothermal Visitor Center
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An angular silhouette rises above the geothermal landscape, formed with cross-laminated timber and enhanced by an elevated viewing platform, creating a unique visitor center that invites exploration of the natural springs and caves.
5 key facts about this project
01
The design includes an angular silhouette that reflects the local geology.
02
Cross-laminated timber construction enhances sustainability and reduces environmental impact.
03
The building features an elevated viewing platform with expansive landscape views.
04
Stone slate roofing allows seamless integration with the surrounding terrain.
05
Skylights mimic natural light patterns, creating an inviting indoor atmosphere.

The Gròtagjá caves in northern Iceland provide a dramatic setting for a visitor center that connects the built environment with unique geological features. Designed to serve as both a functional facility and an experience hub, this space highlights the region's geothermal springs and striking lava rock formations. The overall concept focuses on fostering a meaningful interaction between visitors and the surrounding landscape, reflecting Iceland's deep cultural ties to nature.

Spatial Organization

The visitor center's layout is carefully planned to enhance the experience for those who enter. Key areas include a reception area, changing rooms, staff quarters, and a café, providing essential services while allowing for easy movement throughout the building. As visitors explore, they are guided naturally through thoughtfully arranged spaces. An elevated viewing platform grants expansive vistas, connecting guests with the overall narrative of the Icelandic landscape.

Architectural Form

The building features an angular silhouette that mirrors the rugged geology of the area. This distinct shape is both a visual landmark and a source of shelter and comfort within the landscape. Skylights are strategically placed to bring in natural light, creating a welcoming atmosphere inside. The geometry of the structure serves to reinforce its connection to the environment while offering an engaging visual experience.

Material Selection

The choice of materials reflects a commitment to sustainability and harmony with the landscape. Features such as double-glazed skylights provide ample light while maintaining energy efficiency. Stone slate roofing blends the structure into its surroundings, creating a cohesive appearance. The interior is finished with cross-laminated timber, which adds warmth and comfort. Steel frames ensure durability, supporting the building's structure against the elements.

Design details include a private pathway leading to the changing rooms, designed to minimize environmental impact while providing privacy for visitors preparing to enjoy the geothermal springs. The careful play of light and shadow throughout the space enhances the connection between the architecture and the natural surroundings, creating a sensory experience that invites reflection and exploration.

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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.

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