Serendix Transitions to Mass Production Phase for 3D-Printed Construction

Serendix Co., Ltd. (Headquarters: Nishinomiya City, Hyogo Prefecture; CEO: Hiroyasu Oma, hereinafter "the Company"), Japan's first 3D-printed home manufacturer, announces that its 3D-printed construction business has transitioned from the research and development phase to mass production. Since launching sales of 3D-printed homes in 2022, the Company has accumulated project experience in areas such as train stations and industrial facilities, advancing into the "mass production phase." In line with business expansion, the Company will actively strengthen its management structure and recruitment.

An example of a scalable home design, adaptable not only for housing but also for various applications. Image courtesy of CLOUDS AO.

3D printing operation using construction 3D printer (Minamata City, Kumamoto Prefecture)

Applications of 3D-Printed Construction Beyond Housing

The world's first 3D-printed train station, "JR Hatsushima Station" (Hidakagawa Town, Wakayama Prefecture)

Since completing Japan's first 3D-printed home, "serendix10," in March 2022, the Company has built a track record in residential construction. In March 2025, in collaboration with its capital and business partner JR West Japan Group, it constructed the world's first 3D-printed train station at JR Kisei Main Line's Hatsushima Station (Hidakagawa Town, Wakayama Prefecture). Recently, inquiries from infrastructure sectors such as railways, power, and public facilities have rapidly increased.

For the current fiscal year (ending July 2026), the Company expects 38 orders for residential and infrastructure-related facilities, with over a dozen units scheduled for completion. The Company aims to exceed 100 cumulative units within 1–2 years and over 1,000 units annually within five years.

Expanding Capacity to Meet Replacement Demand for Concrete Structures

Japan's buildings and social infrastructure, constructed during the period of high economic growth, are now over 50 years old, leading to a significant increase in renewal and replacement demand. However, the construction industry faces worsening labor shortages, rising material costs, and extended project timelines. The Company is advancing its 3D printing method—not as a technology limited to housing—but as construction robotics technology capable of meeting replacement demand for concrete structures. Key target areas include:

- 3D-printed homes - Public infrastructure - Commercial facilities - Bridges and highways - Disaster response facilities - Blast-resistant facilities and shelters in defense applications

Appointing 24-Year-Old New Graduate as COO: Management Structure Supporting Mass Production

The Company is promoting business expansion in the mass production phase through a hybrid management structure combining talent grown from within and experienced executives from various fields. Soshi Sato (Sato Soshi), who joined as a student intern in 2023 and became a full-time employee, was appointed Executive Officer and COO in 2026. He has achieved results in business development, including Series B funding, overseas market expansion, and corporate project acquisition, driving the mass production phase.

Additionally, the Company has appointed Yoshiaki Kakuda, founder of Pencil Co., Ltd., with extensive experience in business model development and marketing systematization, as Executive Officer and Chief Marketing Officer (CMO). Together with serial entrepreneur CEO Hiroyasu Oma and Co-founder & CTO Kuniharu Iida, the management team—comprising diverse backgrounds from new graduates to seasoned executives—will accelerate the social implementation of robotics in construction.

Executive Officer & COO Soshi Sato

Executive Officer & CMO Yoshiaaki Kakuda

Comment from Co-founder & CTO Kuniharu Iida

"We position construction 3D printers not merely as manufacturing equipment, but as a 'robotics platform' to automate construction sites. Our goal extends beyond innovating building techniques. We believe that changing the way we build—enabling lifestyles free from mortgage burdens and providing places for disaster victims to return—can transform individual lives. Now that we have entered the mass production phase, we aim to establish construction robotics not as isolated advanced cases, but as a new, replicable construction method across Japan and globally."

About Serendix

The Company is Japan's first 3D-printed home manufacturer. Following the completion of Japan's first 3D-printed home, "serendix10," in March 2022, it built the first sales unit of "serendix50," a home for two-person households, as a recovery housing model in Suzu City, Ishikawa Prefecture, in September 2024. With support from the United Nations Industrial Development Organization (UNIDO), the Company is advancing a reconstruction support project in Ukraine using 3D-printed construction, with architectural design supervised by Masayuki Sono (Clouds AO), an architect involved in NASA's Mars settlement project. In 2025, the Company constructed a train station in partnership with JR West Japan Group, delivering construction robotics solutions beyond housing to domestic and international markets.