Takumi Ota

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Circular Composites: Designing for a Sustainable Future

 | In Collaboration

The pursuit of stronger, lighter, and more durable materials has guided architecture long before polymers or carbon fibers existed. One of the earliest large-scale examples of composite materials can be found in the Great Wall of China, where stone, clay bricks, and organic fibers such as reeds and willow branches were blended to create a resilient and lasting structure. These early techniques reveal a timeless intuition: distinct materials, when combined thoughtfully, produce properties unattainable by any single element. As the construction sector faces urgent ecological pressures, this intuition is being revisited through the lens of sustainability, with architects and engineers exploring bio-based, recycled, and hybrid composites designed not only for performance but also for circularity and environmental responsibility.

i-Ap Apartment / Soeda and associates Architects

i-Ap Apartment / Soeda and associates Architects - More Images+ 20

Shinjuku City, Japan

Sonata2 Apartment / Soeda and associates Architects

Sonata2 Apartment / Soeda and associates Architects - More Images+ 20

House on the Rias Coast / no.10 NOMURA Co., Ltd.

House on the Rias Coast / no.10 NOMURA Co., Ltd. - More Images+ 19

“The Kind of Architecture I Try to Achieve Is a Rainbow:” In Conversation With Kengo Kuma

In my 2008 interview with Kengo Kuma in Manhattan—the Tokyo-based architect was in town for a lecture at Cooper Union and to oversee the construction of a house renovation in nearby Connecticut— he summarized the intention of his work for me, "The closest image to the kind of architecture I try to achieve is a rainbow." The architect designs his buildings as a chef would prepare a salad or a florist arrange a bouquet of flowers—by carefully selecting ingredients according to their size, shape, and texture. He then tests whether they should touch, overlap, or keep a distance to let the airflow pass through. The process is closer to a trial-and-error scientific experiment rather than an artistic exercise in projecting visionary forms and images. Although his buildings surely look strikingly artistic and utterly breathtaking. They are both precise and loose, primitive and refined, material and transient. The architect's fascination with materiality is startling, and despite having completed many dozens of buildings all over the world over the course of his distinctive career, in our conversation last month over Zoom, Kuma told me, "I stand at the beginning of a long process of material exploration."

“The Kind of Architecture I Try to Achieve Is a Rainbow:” In Conversation With Kengo Kuma - More Images+ 27

JINS Holdings Tokyo Head Office / Fumiko Takahama Architects

JINS Holdings Tokyo Head Office / Fumiko Takahama Architects - More Images+ 13

Shodoshima the Gate Lounge / VUILD Inc.

Shodoshima the Gate Lounge / VUILD Inc. - More Images+ 24

Block Wall House / nendo

Block Wall House / nendo - More Images+ 4

Karuizawa, Japan
  • Architects: nendo
  • Year Completion year of this architecture project Year:  2024

“Oyane-San” Shikoku Mura Entrance / kousou

“Oyane-San” Shikoku Mura Entrance  / kousou - More Images+ 17

Takamatsu, Japan
  • Architects: kousou
  • Area Area of this architecture project Area:  420
  • Year Completion year of this architecture project Year:  2022
  • Manufacturers Brands with products used in this architecture project
    Manufacturers:  AutoDesk, ARM-S, Daiko, OSMO-EDEL, SK KAKEN BELLART SERIES, +2
  • Professionals: EAU, KAP, Kajima Kensetsu

Kobe Hyogo House / YYA / Yusuke Yoshino Architects

Kobe Hyogo House / YYA / Yusuke Yoshino Architects - More Images+ 20