Revolutionizing Residential Architecture: Eco-Friendly House Design in the Block Wall House by nendo

Located in the picturesque town of Karuizawa, Japan, the Block Wall House by nendo stands as a testament to the advancements in eco-friendly house design. This private residence combines sustainability with cutting-edge architectural techniques to create a living space that respects both privacy and the natural environment.

Design Concept and Innovation

Addressing Privacy and Aesthetics

The Block Wall House is situated on a distinctive triangular property that extends 110m along a busy road, posing unique challenges for privacy and interaction with the natural surroundings. nendo’s architects devised an ingenious solution by constructing concrete block walls that act as filter screens, which are carefully angled to control sightlines and exposure.

The Role of Concrete Block Walls

The design utilizes approximately 2,050 staggered blocks arranged in parallel rows to form five 3-meter-high walls. These walls are not merely structural but are pivotal in defining the internal spaces of the home. By adjusting the angles of each block by three degrees, the architects ensured tailored privacy levels for different areas such as the bedroom and bathroom, while also enhancing the spaciousness of the living and dining areas.

Sustainability Features

Innovative Use of CO2-SUICOM Concrete

A central feature of the Block Wall House is its use of “CO2-SUICOM,” an eco-friendly concrete that reduces CO2 emissions significantly during production. This material, developed in collaboration with several Japanese corporations, captures CO2 from the air as it hardens, potentially reducing the total CO2 emissions associated with its production to net zero or less. This innovation marks the Block Wall House as a leader in sustainable building practices.

Environmental Impact and Benefits

The use of CO2-SUICOM not only mitigates the environmental impact of construction but also sets a new standard for eco-friendly house design in urban settings. The Block Wall House demonstrates how residential architecture can contribute positively to environmental sustainability while offering a modern, aesthetically pleasing living space.

Spatial Design and Interior Layout

Integration with Natural Surroundings

The arrangement of the block walls and the strategic orientation of the windows allow for an immersive experience of the external environment without compromising privacy. This design philosophy extends to the interior, where the minimalistic approach and the interaction of light and shadow create a tranquil and inviting atmosphere.

Community and Living Space

The Block Wall House also focuses on creating communal spaces that encourage interaction and engagement. The large table and generous banquettes at the end of the home provide a social setting that complements the private areas, ensuring that the house is not just a place to live, but a place to thrive.

The Block Wall House by nendo exemplifies the potential of eco-friendly house design to blend innovative architectural techniques with environmental responsibility. As this project shows, sustainable design can achieve aesthetic excellence while promoting a healthier relationship between built environments and the natural world. This home not only serves as a residence but also as an inspiration for future architectural endeavors that prioritize sustainability and style.

All photographs are work of Masahiro Ohgami, Takumi Ota