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Recycled Plastic Blocks and Zinc Roofing in Compact off-Grid Living

Authors:
Sara Elfallah, Shorieh Talaat
Recycled Plastic Blocks and Zinc Roofing in Compact off-Grid Living
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Constructed with recycled plastic blocks and topped with zinc roofing, this compact home provides an efficient off-grid living solution tailored for the unique environmental conditions of Cairo, Egypt.
5 key facts about this project
01
Constructed entirely from recycled plastic blocks for sustainability.
02
Incorporates a zinc roof for efficient rainwater collection.
03
Features natural ventilation through operable curtain walls.
04
Includes a biogas system to process organic waste.
05
Compact layout optimized for multi-functional living spaces.

The rural micro home project introduces a new take on sustainable living, designed specifically for peri-urban areas such as Cairo, Egypt. Covering about 23.5 square meters, it focuses on creating an efficient space that operates independently of external resources. The design responds to local needs, carefully considering economic, cultural, and environmental impacts while being adaptable to various global contexts.

Building Envelope

The structure features a roof made of zinc standing seam panels, which facilitate both rainwater collection and solar energy utilization. This choice reflects a practical approach to energy independence. Walls consist of modular recycled plastic blocks bound with a plant-based sealant, known as polyvinyl acetate, or PVA. This material selection not only promotes sustainability but also improves thermal performance. Large operable windows enhance airflow, contributing to a refreshing indoor atmosphere.

Active and Passive Systems

The micro home is equipped with systems that allow for efficient energy and water management. It includes photovoltaic solar panels to meet electricity needs and a biogas tank that turns organic waste into both biomethane fuel and organic fertilizer for plants. Additionally, the home features water systems that capture hot water and recycle grey water, ensuring efficient resource use.

Spatial Arrangement

The interior is thoughtfully divided into key areas: a main living space, kitchen, shower, and toilet. This setup maximizes functionality in a small area, fitting diverse needs. Flexible furniture, like a desk that can also serve as a bed, adds versatility to the living experience while maintaining comfort.

The design highlights details such as a wind catch, also referred to as "Malkaf," which helps naturally cool the home. Through evaporative techniques, it keeps indoor temperatures pleasant without relying on energy-intensive systems. The combination of these elements creates a space that meets modern living standards with a commitment to sustainability.

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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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