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Living Roofs and Rainwater Harvesting in a Modular Aluminum Microhome

Living Roofs and Rainwater Harvesting in a Modular Aluminum Microhome
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Incorporating living roofs and a rainwater harvesting system, the modular aluminum microhome integrates sustainable practices with an adaptive design to create efficient living spaces.
5 key facts about this project
01
Incorporates a rainwater harvesting system for efficient water management.
02
Features living roofs that enhance biodiversity and insulation.
03
Utilizes lightweight aluminum panels for structural efficiency.
04
Modular design allows for flexible reconfiguration of living spaces.
05
Integrates vegetation as a core element of the architectural experience.

## Analytical Report: The Symbiotic Microhome

### Overview
Located within the framework of the Builder's Microhome Architecture Ideas Competition 2024, the Symbiotic Microhome explores the integration of compact living with ecological principles. This project addresses contemporary challenges in architecture and sustainability while seeking to foster a relationship between human habitation and the surrounding natural environment.

### Spatial Configuration
The design encompasses a total area of 25 square meters and employs a modular layout that accommodates various functional living spaces including a bedroom/office, bathroom, living room, and kitchen. The arrangement fosters accessibility and interaction among units, while pathways between them enhance engagement with the natural context. Each module retains its autonomy, allowing for personalized experiences within a cohesive living environment.

### Material Selection
A focused approach to materiality underscores durability and sustainability throughout the microhome. Key materials include DRI Design Cassette with Karrier Panel, which provides structural integrity while minimizing the overall footprint. Troldtekt V-Line Acoustic Ceiling Tile enhances indoor acoustic comfort, and the integration of a rainwater harvesting system exemplifies a commitment to resource conservation. These selections support sustainable living without compromising on user comfort and utility.

The design also integrates living vegetation, transforming the microhome into a part of its ecosystem. Rooftop gardens serve dual purposes, improving insulation and energy efficiency while creating habitats for local wildlife. Modular reconfiguration allows the space to adapt to occupants' changing needs, promoting both individual lifestyles and a connection to the broader community.

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The Next House: USA
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Buildner's Unbuilt Award 2026
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100,000€ Prize / 2026

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

`
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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