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Geothermal Retreat Enveloped in Textured Concrete and Natural Timber

Geothermal Retreat Enveloped in Textured Concrete and Natural Timber
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Built with textured concrete and warm timber, the design harmonizes with the rugged Icelandic landscape while providing a functional seasonal retreat for outdoor enthusiasts.
5 key facts about this project
01
Utilizes locally sourced materials to minimize environmental impact.
02
Incorporates geothermal heating for efficient energy use.
03
Features a cantilevered design that aligns with the terrain’s slope.
04
Includes expansive glass facades for panoramic views of the landscape.
05
Employs a layered facade of textured concrete and charred wood for durability.

## Project Overview

The "Rock and Soil" ski cabin is situated in Iceland, designed in response to the unique challenges posed by the country's dramatic terrain and weather conditions. The architectural intent emphasizes the integration of the built environment with the natural landscape, reflecting contemporary aesthetics while drawing on traditional Icelandic forms. Conceptually rooted in the dual themes of "rock" and "soil," the design symbolizes stability and grounding, with the cabin's structure echoing geological formations through its layered, ascending volumes.

## Structural Responsiveness

The building's geometric form consists of stepped volumes that adapt fluidly to the surrounding slope. Key structural components include a tapering main cabin that defines the primary living space while maintaining a minimal footprint, and elevated observation decks that provide panoramic views. The design also features terraced outdoor areas that encourage interaction with the natural environment, fostering both leisure and exploration.

## Material Selection and Sustainability

Materiality plays a vital role in achieving both aesthetic and functional objectives. Concrete serves as the primary structural element, offering robustness against harsh weather while contributing to an earth-toned palette. Interior finishes of pine or spruce introduce warmth and relate to traditional architectural practices, whereas large glass windows enhance natural light and provide unobstructed views of the landscape. Metal accents provide durability and a contemporary touch without overwhelming the overall design.

Sustainability principles are embedded in the overall design, which employs passive heating strategies through the careful orientation of living spaces. Innovative features such as rainwater harvesting systems and energy-efficient insulation further minimize energy consumption. The use of locally sourced materials not only supports eco-friendly practices but also reduces the project's carbon footprint.

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Buildner's Unbuilt Award 2025
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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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