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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 Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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