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Structural Harmony of Aluminum and Glass in a Sustainable Mountain Retreat

Authors:
Hélène Lacombe, Sophie Lambotte, Delphine Lewandowski, Paul-antoine Lucas
Structural Harmony of Aluminum and Glass in a Sustainable Mountain Retreat
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Utilizing a modular structure of aluminum and extensive glass surfaces, the design integrates sustainable practices within a compact footprint, creating an efficient retreat for trekkers in Iceland's wilderness.
5 key facts about this project
01
Utilizes a modular design to optimize space and functionality within a compact footprint.
02
Incorporates a rainwater harvesting system to achieve self-sufficiency in water management.
03
Features extensive glass surfaces to enhance natural lighting and outdoor connectivity.
04
Constructed with a combination of aluminum and concrete to ensure durability and minimal maintenance.
05
Designed with communal spaces that foster social interaction among visitors.

### Project Overview

Located in the rugged landscapes of Iceland, the Lighthouse trekking cabin is designed as a sustainable and minimalistic structure aimed at providing accommodation for trekkers. The project emphasizes ecological harmony and responds to the unique geographical challenges of the area by targeting a compact footprint that maximizes habitable volume.

### Spatial Configuration

The cabin features a modular design consisting of six vertical stories, accommodating ten guests. Each floor is thoughtfully organized to fulfill specific functions, seamlessly integrating communal spaces with private retreats. This multi-layered spatial arrangement allows for both solitude and interaction, facilitating a versatile living experience tailored to the needs of its occupants. The rhythmic organization around structural columns further enhances the functionality of the space, promoting an efficient and user-friendly environment.

### Material and Sustainability Strategy

The choice of materials reflects a commitment to both structural integrity and ecological responsibility. The main structure incorporates aluminum for its lightweight and recyclable properties, while concrete serves as a stable base for the upper modular sections. Generous use of glass enhances the connection between the interior and the surrounding landscapes, providing visual continuity. Sustainable insulation materials are employed to optimize energy efficiency.

In terms of sustainability, the cabin integrates renewable energy sources, including a rapeseed oil co-generator and photovoltaic solar panels, supporting a self-sufficient energy system. Water management techniques, such as rainwater harvesting and an efficient purification system, are designed to minimize external dependency. Additionally, the project anticipates waste recycling solutions for both organic materials and wastewater, showcasing a holistic approach to environmental stewardship. The adaptable structure can also adjust to various terrains, ensuring stability while maintaining its minimal ecological footprint.

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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.

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

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
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