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Timber and Void Structure Enhancing Geological Engagement in Iceland

Authors:
Josh Coppick, Chandler Brown
Timber and Void Structure Enhancing Geological Engagement in Iceland
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Constructed with a unique sawn void that connects the observation tower to the surrounding geological features, the design encourages exploration while providing access to the natural caves of Grjótagjá in Iceland.
5 key facts about this project
01
An exposed void structure provides direct views of the geological rift.
02
The design integrates heavy timber elements to enhance warmth and intimacy.
03
Pathways are elevated to protect visitors from the rugged terrain and harsh weather.
04
Wooden-framed panels echo local geological formations in their motif.
05
The project prioritizes visitor engagement with the surrounding natural landscape.

The SIERRA GRJÓTAGJÁ project is an observation tower located in Grjótagjá, Iceland, designed to enhance access to the region's natural caves. This structure embodies the concept of division, drawing inspiration from the tectonic movements of the area. The overall design connects the built environment with the geological features, inviting users to engage with both.

Geological Reflection

The design features a prominent void that runs through the structure, mirroring the geological rift of the landscape. This void serves a dual purpose: it provides visual access to the cave entries and emphasizes the dynamic relationship between the architecture and the natural surroundings. Visitors can closely observe the geological features while navigating the space.

Pathway Integration

A carefully designed pathway leads visitors across the lava field in a protected environment. The elevated platform keeps users safe from harsh weather and rugged terrain. The linear design of the path aligns with the motifs found in the surrounding geology. This encourages exploration and interaction with the landscape.

Interior Atmosphere

Inside the tower, heavy timber structures contribute warmth and intimacy. The design incorporates wooden-framed panels between supporting columns, reinforcing the sawn motif and enhancing thermal efficiency. This creates a comforting environment for visitors, echoing the natural forms of the landscape outside.

As people approach the structure, they experience a mix of textures and forms that reflect the surrounding geology. The interplay of materials highlights the relationship between the natural landscape and the built environment, inviting thoughtful engagement with this distinct location.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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Design the future of Vancouver’s skyline

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Final registration deadline 29 October 2026

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