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Modular Steel Structures Enhancing Community Sustainability

Authors:
Fabio Kahn, Antonio Kanda, Cristi Watari, Keila Kako
Modular Steel Structures Enhancing Community Sustainability
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Prefabricated steel modules create a robust framework that prioritizes community interaction and sustainability in addressing Melbourne's housing needs.
5 key facts about this project
01
Prefabricated steel components reduce construction time and waste.
02
Modular residential units allow flexible configurations for diverse household sizes.
03
Integrated rainwater and greywater systems support resource-efficient living.
04
Community gardens promote social interaction and environmental awareness.
05
High-performance windows enhance energy efficiency and natural lighting.

The Melbourne Affordable Housing project tackles the significant issues of urban sprawl, housing affordability, and social instability faced by one of Australia’s major cities. Located in Melbourne, the design promotes a sustainable living environment through densification. It aims to create mixed-use areas that respond to the varied needs of the community. The overall concept focuses on flexibility and adaptability, blending residential and commercial spaces in a cohesive manner.

Modular Design

The project utilizes a modular approach that enhances construction efficiency and allows for various housing configurations. The design features taller buildings in the city center and gradually shifts to lower profiles in the outer suburbs. This strategy respects the existing urban landscape while making the best use of land. Residences can be configured as single, double, or triple units, catering to different household sizes and encouraging a diverse community.

Community-Centric Spaces

Communal spaces are central to the design, promoting interaction among residents and fostering a sense of belonging. The ground floor is dedicated to commercial uses and shared public facilities, including bike parking and gardens. By integrating co-working spaces and workshops, the design emphasizes both personal and professional development opportunities for the people living there.

Sustainability Practices

Sustainability is a vital element of the project. The building features high-performance windows and insulation that contribute to an airtight facade, enhancing energy efficiency. Water management includes strategies such as rainwater collection and greywater recycling, minimizing resource use. Renewable energy sources, like wind turbines and solar panels on the rooftops, further demonstrate the commitment to reducing the environmental impact.

In addition to its sustainable features, the design includes balconies and large windows that allow for ample natural light and ventilation. These elements not only improve indoor comfort but also provide residents with views of the surrounding urban area, contributing positively to their living experience.

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

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Competition organisers

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.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

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Buildner's Unbuilt Award 2026

Celebrating your unbuilt architecture visions with a €100,000 prize

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