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Off-Grid Living Enhanced by SIP Technology and Scaffolding Framework
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Featuring modular construction with structural insulated panels and a scaffolding framework, these compact units offer off-grid living solutions tailored for young residents in Lisbon.
5 key facts about this project
01
Each microhome is prefabricated in six parts, allowing for rapid on-site assembly in just four hours.
02
The design employs structural insulated panels for enhanced thermal efficiency and low energy consumption.
03
Solar panels on the roofs generate around 50% of the residents' energy needs, promoting sustainability.
04
Advanced rainwater harvesting systems can collect up to 7,300 liters annually, supporting off-grid living.
05
The use of H-beams creates a unique framework that facilitates communal pathways between units, fostering interaction.

## Microhomes Project in Lisbon: Architectural Analysis

### Context and Intent
The Microhomes project addresses Lisboa's significant housing crisis, where a substantial portion of the young population grapples with rising living costs. With a pressing demand for approximately 12,000 new housing units, the initiative focuses on affordability and sustainability, offering modular homes under 25 square meters at half the prevailing market rates. The design employs a "Parasite" concept to utilize existing infrastructure and vacant urban spaces, fostering community engagement while providing accessible living solutions for young residents.

### Spatial Configuration and Assembly
The Microhomes are organized in a layout that optimizes communal interactions, resembling books on a shelf to enhance social connectivity among residents. The structural integrity is maintained through H-beams, with scaffold pathways facilitating movement between units. Each microhome is prefabricated in six parts, allowing for efficient on-site assembly that reduces construction time to four hours with three workers, thus responding quickly to urgent housing needs while ensuring a functional and visually coherent living environment.

### Material Innovation and Sustainability
This project incorporates advanced materials that bolster thermal performance, structural integrity, and user comfort. The primary building component is the Structural Insulated Panel (SIP), designed with a 120mm thickness for superior insulation. Other material choices include robust PVC doors, double-glazed windows for energy efficiency, and pre-fitted kitchen modules alongside dedicated storage units. The design also emphasizes sustainable practices, featuring solar panels on roofs that can generate 4.5 kWh monthly, covering half of the energy requirements of the residents. Additionally, incorporated water harvesting systems demonstrate the project's commitment to self-sufficiency and resource conservation, with the capacity to collect up to 7,300 liters annually.

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

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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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