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Off-Grid Living Enhanced by SIP Technology and Scaffolding Framework

Authors:
Mateus Costa da silva, Catarina Sofia Lopes De Freitas, Diogo Pedro Rocha Leal, Xavier Carmo Falcão
Off-Grid Living Enhanced by SIP Technology and Scaffolding Framework

Project in-detail

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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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
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