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Tubular Wood Shelter with Integrated Biofiltration System

Authors:
Jacinto Jesús Moros Montañés, Julia Otaño Gonzalez, Carmen Garrido Herranz, Nuria Martinez Morales
Tubular Wood Shelter with Integrated Biofiltration System
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Featuring a dual-layer facade of tubular wood and an innovative graywater biofiltration system, the design offers a sustainable living space that fosters a close connection to the surrounding forest.
5 key facts about this project
01
Tubular wood structure designed to blend with forest surroundings.
02
Elliptical stairway facilitating vertical movement between functional areas.
03
Integrated graywater biofiltration system for sustainable water management.
04
Resting area positioned for optimal views of the valley.
05
Dual-layer facade enhancing thermal regulation and privacy.

The KRYSÁLIDA project presents a unique solution that integrates architecture with the forest environment while prioritizing sustainability and user comfort. Located among trees, the design acts as a refuge that harmonizes with nature, combining essential amenities with a thoughtful connection to the surrounding landscape. The overall concept revolves around creating a living space inspired by the growth patterns of trees, enhancing the relationship between inhabitants and their environment.

Conceptual Design

The design features a dual-layer facade that supports temperature regulation and protects against wind. This double skin not only shelters inhabitants but also provides visual privacy, allowing users to be part of the environment without losing their personal space. The organic forms and lines contribute to a welcoming presence, reinforcing the theme of unity with the forest.

Spatial Arrangement

A key feature of the project is an elliptical stairway that connects the various living areas, including storage, bathroom, and sleeping spaces. This vertical movement is more than just functional; it creates a sense of hierarchy within the structure and encourages occupants to engage with the views around them. The layout is carefully planned, ensuring usability while maintaining a close relationship with nature.

Material Choices

The use of tubular wood tubes in the outer structure aligns with the project's ecological goals, offering both durability and a connection to the forest. This material choice not only supports the building’s integrity but also reduces its environmental impact. Inside, wood continues to play a significant role, creating warmth and a sense of comfort that connects residents to their surroundings.

Sustainable Practices

An important part of the project is its biofiltration system, which repurposes gray water for irrigation. This innovative system manages water use and wastewater effectively while enhancing the natural landscape. By doing so, the design promotes biodiversity and showcases practical approaches to sustainability.

In the evenings, soft ambient lighting creates a calm atmosphere. This detail encourages occupants to pause and enjoy the peacefulness of the surrounding environment. Overall, the careful consideration of spatial elements and materials contributes to a living experience that is closely linked with nature.

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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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