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Biological Waste Treatment with Cross-Laminated Timber in Compact Modular Housing

Author:
Petre Simonescu
Biological Waste Treatment with Cross-Laminated Timber in Compact Modular Housing
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Utilizing Cross-Laminated Timber and a biological wastewater treatment system, this compact modular housing solution offers a flexible and sustainable living option while prioritizing energy efficiency and environmental responsibility.
5 key facts about this project
01
Utilizes Cross-Laminated Timber for structural integrity and sustainability.
02
Incorporates a compact, non-electric biological wastewater treatment system.
03
Designed for easy relocation, minimizing environmental impact.
04
Supports energy needs with eight photovoltaic panels per module.
05
Features an adaptable layout allowing expansion or contraction based on occupancy.

The Mito - Multiplying Modular House offers a fresh take on residential living through a design inspired by the natural process of cell division. Located in an environment that values sustainability, the house functions as a flexible and adaptable space. It can expand or contract depending on the changing needs of the occupants. This focus on functionality and environmental care reshapes the way individuals can interact with their living spaces over time.

Modularity

The design features two independent modules that can either serve as one complete living unit or function as two separate homes. This dual-module system allows easy relocation, minimizing the typical environmental impact of conventional housing. When the modules are moved, only a concrete foundation and an area for the septic system remain behind, illustrating a commitment to responsible development practices.

Technical Components

Self-sufficiency is key to the modules. Each one is equipped with systems that support off-grid living. A Water Filtration System and septic tank manage waste effectively, ensuring clean water and proper sanitation. The septic system employs a compact, non-electric approach to treat wastewater biologically. This process separates impurities before discharging treated water, highlighting the design’s attention to functionality and ecological awareness.

Energy Strategy

Energy efficiency plays an important role in the overall design. Analysis of solar potential in Berlin, Germany, informs the energy strategy. Each module can accommodate eight photovoltaic panels, generating around 4 kWh. This output is sufficient for a household of three to four people. Additionally, an underfloor heating system requires only 2.5 kWh, which enhances comfort while maintaining low energy consumption.

Materiality

Cross-Laminated Timber (C.L.T.) is used for building the modules. This material provides strength and stability while aligning with sustainability goals. Utilizing C.L.T. allows for prefabrication, which reduces waste and makes construction more efficient. This choice supports the overall aim of creating a residential space that is both practical and environmentally conscious.

Mito's design responds directly to modern housing challenges. It facilitates adaptability, sustainability, and efficient use of resources. Through its structural features and integrated systems, it presents a clear vision for future housing solutions, striking a balance between practicality and thoughtful design.

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

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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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