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Charred Wood Exterior Meets Green Roof in Compact Microhome Design

Authors:
Darla Lindberg, Trevor Berreth
Charred Wood Exterior Meets Green Roof in Compact Microhome Design
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Constructed with a charred wood exterior and enhanced by a green roof, the microhome is designed to promote sustainability while providing a versatile living space for its inhabitants.
5 key facts about this project
01
Constructed with a charred wood exterior for enhanced durability and weather resistance.
02
Features a green roof that supports local biodiversity and effective rainwater management.
03
Includes a central pinhole skylight for maximizing natural light throughout the space.
04
Configured with modular systems to allow flexible use for various daily activities.
05
Designed as an off-grid home with integrated solar hydronics for energy efficiency.

The microhome focuses on sustainable living through an innovative design. It is situated within a context of global afforestation efforts, addressing ecological concerns while providing a practical space for its users. The design embodies the concept of the poche, which promotes interaction between the home and its occupants. It aims to heighten ecological awareness and improve daily living experiences.

Architecture Concept

This home is designed as an off-grid dwelling that incorporates energy-efficient solutions. The use of sun-tempered design and high-quality insulation ensures optimal temperature regulation. Solar hydronic heating and cooling systems significantly reduce energy costs and environmental impact. The layout is well-thought-out, providing comfort and maximizing space for a two-person household.

Materials

Renewable wood forms the core of the structure, offering both durability and a natural aesthetic. A green roof enhances the building's ecological profile, promoting biodiversity and assisting with rainwater filtration. The contrast between the black charred wood exterior and the lighter interior finish creates a warm, inviting atmosphere. These material choices reflect a commitment to sustainability while maintaining visual appeal.

Spatial Configuration

Inside, the microhome spans 900 square feet, divided into modular areas. This organization allows different activities—sleeping, bathing, cooking, and relaxing—to take place within the same footprint. The open space of 1440 cubic feet provides flexibility, accommodating various functions as needed. Natural light plays a crucial role in the design, entering through a central pinhole skylight to create a bright and airy feel.

Transitional Elements

A folding glass façade encourages a connection between the indoors and outdoors. This feature allows fresh air and sunlight to enter the living space, marking the passage of the day. Such elements help residents engage with their surroundings, fostering a relationship with nature that enhances everyday life. The overall design promotes a lifestyle focused on sustainability while ensuring a comfortable and adaptable living environment.

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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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