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Flexible Living with PV Thermal Collectors and Greywater Systems

Authors:
Adil Ahmet Bahadır Sezer, Selcan Ezgi Şen, Bartu Lokumcu
Flexible Living with PV Thermal Collectors and Greywater Systems
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Utilizing foldable furniture and greywater systems, the design offers a self-sufficient living environment powered by PV thermal collectors, adaptable to the changing needs of its residents.
5 key facts about this project
01
Flexible folding furniture allows for customizable living arrangements.
02
Hybrid PV thermal collectors provide both electricity and hot water.
03
Innovative greywater systems recycle water for reuse.
04
Structure can be adapted for both land and sea environments.
05
Strategically placed glass maximizes natural light and views.

The Folding House is an architectural concept that combines flexibility and sustainability, situated in an environment affected by the challenges of pollution and climate change, particularly near the Marmara Sea. This residential structure responds to the needs of modern living by offering adaptable spaces. By limiting fixed furniture to essential wet areas and storage, the design emphasizes an open interior that can easily change to meet the varied needs of its inhabitants.

Design Concept

At the core of the design is the idea of creating open, uninterrupted space. The use of foldable furniture that operates through a rail system allows residents to customize their living area. Users can reshape their surroundings as required, making it possible to accommodate different activities or family dynamics within a single setting.

Energy and Sustainability

The house operates off the grid, using hybrid PV thermal collectors to generate its own electricity. These systems also provide hot water for a radiant heating system, which contributes to energy efficiency. By relying on renewable energy sources, the design reduces dependence on external utilities and highlights a commitment to sustainable living.

Material and Performance

The structure is built with a steel framework, ensuring strength and durability. Triple glazed low-e glass panels are employed throughout to improve thermal performance, helping to keep indoor temperatures stable. Clear glass is strategically placed to allow ample natural light into the home, creating a bright and welcoming environment. Foldable components further enhance the versatility of the space, allowing homeowners to arrange their interior as they see fit.

Water Management Systems

A key feature of the design is its approach to water management. The house purifies seawater to provide drinking and tap water, supporting self-sufficiency. Additionally, greywater generated from everyday activities is collected and reused within the system. This efficient use of resources reflects a forward-thinking strategy for sustainable living.

The Folding House represents a practical response to modern challenges in residential design. It prioritizes adaptability and efficiency while addressing environmental concerns. This offers a living experience that embraces both comfort and responsibility, highlighting the importance of thoughtful design.

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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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