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Triangular Wooden Volume with Integrated Rainwater System for Sustainable Living

Authors:
Eduardo Braga, Carolina Magalhães, Rita Caniceiro, Catarina Jegundo
Triangular Wooden Volume with Integrated Rainwater System for Sustainable Living
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The triangular wooden volume, designed with a rainwater drainage system and flexible modular spaces, addresses the housing needs of young adults in Portugal while promoting sustainable living practices.
5 key facts about this project
01
Triangular wooden volume enhances natural light entry.
02
Flexible modular layout adapts to varying occupant needs.
03
Integrated rainwater drainage supports sustainable practices.
04
Private garden area promotes personal cultivation.
05
Prefabricated construction allows efficient assembly.

The design of <> responds directly to the housing issues faced by young adults in Portugal. Set against a backdrop of growing urbanization and dwindling rural populations, the project aims to create viable living options that make the most of limited space. By embracing a modular approach and focusing on sustainability, the design not only addresses the need for affordable housing but also fosters a sense of community among its occupants.

Design Concept

At the heart of <> is the goal of maximizing living space in an effective way. The distinct triangular volume is a key feature, shaped by the strategic removal of material. This method not only shapes the building’s appearance but also enhances its functionality by allowing ample natural light to fill the interior spaces. The geometry invites curiosity while maintaining a practical essence.

Spatial Organization

Inside, the layout focuses on essential living needs, prioritizing comfort and usability. Modular furniture and elements that can fold away are carefully integrated into the design. This arrangement allows residents to adjust their living spaces based on their requirements. Such flexibility means that occupants can easily adapt their surroundings for different activities, which promotes a more dynamic way of living.

Sustainability Practices

Sustainability plays a crucial role throughout the design. Photovoltaic panels harness solar energy, providing a clean energy source for daily needs. A rainwater collection system is also part of the design, capturing water for household use and garden maintenance. These features not only help the building operate independently but also encourage responsible resource management in everyday life.

Community Integration

The design promotes community by incorporating shared spaces alongside private areas. A garden for personal use offers residents a chance to connect with nature and engage in gardening. This feature encourages interactions between neighbors and strengthens communal ties. The overall layout supports social engagement, creating an environment where shared experiences are valued.

By combining these elements, the design reflects contemporary needs while remaining grounded in principles of sustainability and efficient use of space. The thoughtful arrangement of features fosters both individual and collective well-being, presenting a balanced approach to modern living.

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Enter an open architecture
competition now

Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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