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Prefabricated Units Constructed with Straw Insulation for Sustainable Urban Living

Author:
Mond Qu
Prefabricated Units Constructed with Straw Insulation for Sustainable Urban Living

Project in-detail

Constructed with efficient modular units featuring straw insulation and recycled materials, this initiative addresses housing affordability while promoting sustainable urban living.
5 key facts about this project
01
Utilizes a high-performance steel frame for durability and structural efficiency.
02
Incorporates straw insulation to enhance thermal performance and sustainability.
03
Features a modular design allowing for quick assembly and adaptability.
04
Employs recycled plastic facades, minimizing environmental impact.
05
Integrates solar panels and rainwater collection for energy efficiency and water sustainability.

## Overview
The SUBURBAN+ project addresses the pressing housing shortages in the suburbs of Melbourne, Australia, in light of the city’s significant housing unaffordability, which ranks eighth globally. As Melbourne’s population is expected to grow to 8 million by 2050, the project responds to challenges such as rising housing costs, high interest rates, and the limited availability of affordable housing. In conjunction with recent policy changes by the Victorian government to relax planning restrictions on small dwellings, the project is poised to become a pivotal development in the region's housing strategy.

## Spatial Strategy and Community Integration
Designed as a Modular Small Second Dwelling, the SUBURBAN+ initiative prioritizes adaptive living solutions for young professionals and families. The architectural approach emphasizes a detachment that still allows for connections among generational households, thereby supporting community dynamics. The modular architecture facilitates efficient construction and adaptability, enabling future expansions to accommodate varying family sizes and needs. Additionally, this strategy supports a cohesive neighborhood by providing flexible living spaces that foster interconnectivity and communal engagement.

## Materiality and Environmental Performance
The material selection is carefully considered to enhance sustainability and reduce environmental impact. A steel frame forms the structural backbone, ensuring durability and recyclability. The use of straw insulation offers a low-carbon alternative that effectively regulates temperature, while a recycled plastic facade (Permawood) enhances resilience and aesthetics. Double-glazed glass contributes to energy efficiency, complemented by concrete piers that provide a stable foundation. Additionally, the integration of solar panels and rainwater collection systems supports eco-friendly practices, aligning with broader sustainability goals in construction.

The construction of the SUBURBAN+ unit can be completed in five days, with an estimated total cost of AUD 48,000, positioning it as a viable alternative to traditional building methods, which typically exceed AUD 75,500. The project's design not only anticipates future scalability but also integrates a lifecycle approach that emphasizes recyclability, contributing to a circular economy amidongoing urbanization challenges.

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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
competition now

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