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Hexagonal Modules Featuring Hempcrete and Integrated Water Harvesting in Arid Living Spaces

Hexagonal Modules Featuring Hempcrete and Integrated Water Harvesting in Arid Living Spaces
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Hexagonal modules constructed with hempcrete and enhanced by integrated water harvesting systems create a sustainable living solution tailored for arid environments.
5 key facts about this project
01
Hexagonal module design optimizes space and enhances community interaction.
02
Hempcrete provides superior insulation and sustainable construction benefits.
03
Integrated atmospheric water harvesting system efficiently addresses local resource scarcity.
04
Biophilic design elements promote well-being through indoor greenery.
05
Natural ventilation minimizes energy consumption in desert climates.

**Overview**

The Saguaro House is situated on the urban fringes of southwestern cities, particularly in Arizona, where it addresses the unique challenges associated with arid climates. Designed to be both environmentally sustainable and functionally efficient, the project features hexagonally-shaped structures inspired by the local saguaro cactus. The primary intent is to create a living environment that integrates seamlessly with its natural surroundings while promoting resource efficiency and community resilience.

**Spatial Strategy and Community Interaction**

The layout of the Saguaro House employs a hexagonal modular design that effectively utilizes space and fosters communal living. This configuration supports diverse living arrangements while enabling energy efficiency through passive design elements. The incorporation of natural ventilation through strategically placed windows enhances airflow, thereby reducing reliance on mechanical cooling systems. Moreover, communal spaces are designed to encourage interaction among residents, promoting social connectivity and cooperation within the community.

**Material Selection and Environmental Integration**

Materials used in the construction of the Saguaro House reflect a commitment to sustainability and contextual harmony. Key materials include hempcrete for insulation, wood and steel for structural integrity, and natural fiber composites for cladding. The use of glass not only facilitates natural lighting but also creates visual connections to the surrounding landscape. Renewable energy is harnessed through integrated solar panels, while rainwater harvesting systems contribute to water conservation efforts. This thoughtful selection of materials aligns with the project’s overarching goal of minimizing ecological impact while enhancing the livability of the structures.

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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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