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Gabion Walls and Geothermal Heating Create a Sustainable Mountain Refuge with Natural Materials

Authors:
Samantha Marihart, Elizabeth Rae
Gabion Walls and Geothermal Heating Create a Sustainable Mountain Refuge with Natural Materials
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Utilizing gabion walls and geothermal heating, the design integrates local stone and reclaimed timber to create a sustainable refuge that harmonizes with the alpine environment while serving as a base for outdoor enthusiasts.
5 key facts about this project
01
Utilizes locally sourced gabion walls for structural and aesthetic integration with the landscape.
02
Incorporates geothermal heating systems for energy-efficient climate control.
03
Features oversized triple-pane windows that optimize natural light and views of the mountains.
04
Constructed with reclaimed timber, enhancing sustainability and reducing waste.
05
Adopts a bent A-frame design, providing both stability and distinctive visual appeal.

# Architectural Design Report: Talus

## Project Overview
Located in an alpine environment, the Talus project emphasizes sustainable design and environmental integration. The structure draws inspiration from the local geography and climate, using architectural forms that echo the weathered rock fragments typically found in talus slopes. The design aims to create a refuge that offers shelter from harsh weather while maintaining a strong connection to the surrounding natural landscape.

## Spatial Strategy and User Experience
The planning emphasizes a thoughtful spatial arrangement that prioritizes user comfort and interaction with the environment. Large operable windows and expansive glass panels frame views of the mountainous terrain, enhancing the sensory experience for occupants. The layout includes essential living spaces, such as a communal fire pit, an open living area designed to foster interaction, and a loft area for additional accommodation. Key features, such as a water installation, promote a tranquil atmosphere, while strategic window placement ensures both natural light and thermal efficiency throughout the interior.

## Materiality and Sustainability
Materials were selected based on durability and local availability, contributing to the building's sustainability goals. Natural stone is used for structural walls and gabion systems, while reclaimed timber features in interior finishes. The roof incorporates solar shingles to facilitate off-grid energy generation, complemented by a geothermal system for heating and cooling. Water management systems collect rainwater, with a capacity of approximately 9,860 gallons (37,324 liters), encapsulating the project’s commitment to minimization of ecological impact. The design integrates advanced technologies with natural resource management to create a cohesive and efficient building.

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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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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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