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Stackable Living Modules with Biodegradable Straw Construction

Author:
Giovanni Cavaglion
Stackable Living Modules with Biodegradable Straw Construction
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Constructed with lightweight straw and a robust central core, this modular living solution optimizes urban space through stackable units designed for functional residential use.
5 key facts about this project
01
Constructed using biodegradable straw, enhancing environmental sustainability.
02
Central core integrates electrical and plumbing systems in one location.
03
Modular units allow for easy transport and quick assembly in urban settings.
04
Stackable design maximizes functional living space in a compact footprint.
05
Flexible layout supports future adaptations and changing resident needs.

The Stackable Tower presents a modular residential design that aims to meet the needs of urban living. It features a variety of small, stackable units that can function as bedrooms, kitchens, and communal spaces. The design emphasizes flexibility, allowing for future adjustments and accommodating different lifestyles. Located in an urban environment that often demands efficient use of space, the project offers an innovative response to modern housing challenges.

Modular Design Concept
Each unit is dedicated to a specific purpose, such as cooking, sleeping, or relaxing. This clear division of functions allows for efficient organization of space. The modules are designed to be easily stacked, enabling quick assembly and adjustment. With this approach, living areas remain accessible and functional without sacrificing comfort. The modular construction also positions itself well for potential expansions or changes in use.

Material Specifications
Lightweight materials are a key aspect of the design, particularly straw which makes up the modules. Straw is easy to transport and assemble, aligning with sustainable building practices. The central core of the structure is made from bricks or concrete, ensuring stability and strength. This combination of materials addresses both functionality and durability, allowing the structure to withstand various environmental factors.

Integration of Systems
The core of the design is not just for stability; it also serves as a hub for essential services. Within this central component, electrical systems and rainwater collection are integrated. This thoughtful arrangement reduces complexity and keeps utilities organized. By placing these elements in one location, the design simplifies maintenance and increases the overall efficiency of the living space.

The arrangement of the modules highlights the project's adaptability. Stacking allows for efficient construction while providing the flexibility to meet different living needs. Each feature, from the layout of the modules to the integrated systems, demonstrates a practical response to the challenges of urban housing. The design focuses on straightforward solutions that make the most of available space while ensuring comfort and functionality for residents.

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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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