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Repurposed Panels and Functional Cores in a Compact off-Grid Home

Author:
Steffen Esselink
Repurposed Panels and Functional Cores in a Compact off-Grid Home
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With repurposed panels and dual functional cores, this compact off-grid home efficiently integrates sustainable solutions while providing comfortable living for young professionals.
5 key facts about this project
01
Two functional cores optimize space and organization within the compact footprint.
02
Repurposed sandwich panels enhance thermal performance and sustainability.
03
Dual orientation of functional zones aligns with exterior walls for efficient use.
04
Twelve photovoltaic panels provide a self-sustaining energy system.
05
An outdoor canopy expands living space and promotes connection to nature.

The Pied a Terre Microhome, located in Torla, Spain, addresses the need for compact living spaces designed for one to two young professionals. With a focus on minimalism, it moves away from the DIY aesthetic often found in tiny homes. The design prioritizes efficiency and functionality within a modest 25m² footprint, reflecting current residential needs in an ever-changing landscape.

Design and Spatial Organization

The layout maximizes usable space by employing two distinct functional cores. This setup allows for an increase in living area while keeping home functions organized along the exterior walls. An external canopy enhances the building's profile and provides extra storage options, alongside space for foldable furniture. This arrangement extends the living area beyond the confines of the building, effectively connecting indoor and outdoor life.

Material Choices

Materials play an important role in the construction of the Pied a Terre Microhome. The design features glass, wood, and corrugated aluminum, which create a cohesive and appealing structure. Repurposed insulated sandwich panels covered with locally sourced wooden slats enhance thermal performance and contribute to sustainability goals. These choices help in energy efficiency and blend the home with its natural surroundings, aligning it with the local architectural style.

Sustainability Features

Sustainability is a key aspect of the design, highlighted by the integration of twelve photovoltaic panels that enable a self-sustaining energy system. Climate control is handled by a heat pump along with floor heating, supplemented by a wood pellet fireplace for colder months. Rainwater purification and wastewater management are included, with systems in place to store water for everyday needs. Such features aim to reduce dependence on external resources while enhancing the overall livability of the space.

Functional Aspects

The interior layout encourages flexible use, making the most of limited space. Small kitchen and bathroom windows allow for natural ventilation, while a compost toilet provides efficient waste handling. This thoughtful organization ensures that residents can personalize their open living area, adapting it to their preferences and activities.

At the center of the home, the design of the canopy emphasizes the connection between indoor and outdoor spaces. It creates a sheltered area that encourages interaction with the surrounding landscape, enriching the living experience in a compact, efficient 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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