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Straw Bale Microhome Emphasizing Solar Gain Through Elevated Design

Author:
Gabrielle Andalo
Straw Bale Microhome Emphasizing Solar Gain Through Elevated Design
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Integrating locally sourced straw bales and a hydroponics system, this south-facing microhome maximizes solar gain while providing a flexible living space designed for urban sustainability.
5 key facts about this project
01
Constructed with locally sourced straw bales for sustainability.
02
Elevated kitchen and bathroom areas optimize space efficiency.
03
Integrated hydroponics system promotes food cultivation.
04
South-facing orientation maximizes solar energy gains.
05
Multifunctional furniture ensures flexible living arrangements.

The Straw Bale Microhome offers a thoughtful response to the challenges urban living faces today. Designed for affordability and sustainability, the microhome utilizes innovative methods to maximize limited space. It is situated in an urban environment where efficient design is increasingly necessary. The overall concept focuses on creating a functional living area while maintaining a commitment to environmental care.

Design Strategy

The layout prioritizes efficient use of space and flexibility. The kitchen and bathroom areas are elevated to provide storage for crucial utilities, including water tanks and solar batteries. This design choice maximizes the available floor space while keeping necessary elements accessible. The bed incorporates a dual function, serving both as a sleeping area and a couch, enhancing the home's adaptability. Fold-away tables and chairs allow for easy rearrangement, ensuring that living arrangements can change with the users' needs.

Material Choice

Locally sourced materials play a key role in the construction of the microhome. Modcell panels and straw bales are used to create a lightweight and durable structure. Choosing these materials helps reduce transportation emissions and supports the local economy. The approach demonstrates a commitment to sustainability without compromising quality or performance.

Energy Considerations

The orientation of the microhome is carefully considered to face south, maximizing solar gains during colder months. This positioning helps to lower reliance on heating systems, contributing to energy efficiency. A hydroponics system is integrated within the south-facing glazed facade, serving as both a thermal buffer and a means of growing food on-site, which supports sustainable living.

Living Environment

The microhome illustrates the potential for integrating sustainable practices into daily life. By making food cultivation accessible, it encourages self-sufficiency and a closer connection to resources. Careful attention to detail and the integration of flexible elements create a practical space that meets modern living requirements. Each aspect of the design reflects a thoughtful consideration of how space can function better in the context of urban environments.

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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.

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