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Thermal Mass and Natural Ventilation in Recycled Timber Retreat
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Recycled timber forms a resilient structure designed for optimal thermal performance and passive ventilation, creating a sustainable retreat that seamlessly integrates with its forested surroundings.
5 key facts about this project
01
Recycled timber is utilized throughout the structure to enhance sustainability.
02
Cross-laminated panels provide superior insulation and structural integrity.
03
Charred wooden shingles ensure durability while minimizing maintenance needs.
04
Natural ventilation is achieved through a carefully designed passive airflow system.
05
The bent A-frame design optimizes thermal performance and aesthetic appeal.

## Project Overview

"The Hearth" is positioned within a densely forested area, designed to facilitate retreat experiences that foster a reconnection with nature. The architectural concept prioritizes a symbiotic relationship between the built environment and the natural landscape, incorporating advanced sustainability measures and thermal efficiency to ensure occupant comfort in varying climatic conditions. The design focuses on functionality while addressing contemporary ecological considerations.

### Spatial Engagement and User Experience

The layout of "The Hearth" promotes diverse spatial interactions, with distinct zones tailored for various activities, including social gatherings, solitary reflection, and creative pursuits. Central communal areas are oriented around the decentralized hearth, encouraging social connectivity while private spaces are intentionally designed for tranquility. Generous glazing provides unobstructed views of the surrounding forest, reinforcing the connection between indoor and outdoor environments and allowing natural light to penetrate deep within the interiors.

### Sustainable Materiality

The project utilizes an assortment of sustainable materials that reflect its ecological ethos. QuadCore LEC insulated panels offer exceptional energy efficiency through lightweight construction, while Trofikat™ vinyl ceiling tiles are crafted from recycled materials, contributing to the aesthetic and sustainability goals. Solatube tubular skylights enhance daylighting, reducing dependence on artificial illumination. Additionally, locally sourced recycled timber structures and polycarbonate panels facilitate thermal management while maintaining natural light access. Concrete cores are employed for both structural integrity and thermal mass, while integrated rainwater harvesting systems and clay plaster finishes further emphasize the project's commitment to sustainability.

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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.

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

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

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