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Serendix

ApplicationNishinomiya, JapanFounded 2018· One of 702 Application companies tracked by AMPulse

A construction tech startup pioneering the 'mortgage-free' era by developing and mass-producing 3D-printed residential houses that can be built in less than 24-48 hours at the price of a car.

CEO / Founder
Hiroyasu Koma
Team Size
1-10
Stage
Growth Stage
Total Funding
$332K
Latest Round
Series B
Key Investors
JR West Innovations, Nippon Escon, Resona Capital, Shin-Showwa, Yamaichi Unihime Estate, Sanwa Company, Quantum Leap Capital

Technology & Products

Key Products

3D-printed homes (serendix10, serendix50/Fujitsubo, serendix5 series kits from ¥3.3M), construction 3D printing for railway stations/infra (JR Hatsushima), disaster temporary/reconstruction housing, digital construction data / robotics platform for multi-site printing.

Technical position · AMPulse analysis

Utilizes a 'Consortium' business model with 280+ partner companies to share R&D and supply chain risks, alongside a proprietary digital construction data platform that allows houses to be 'printed' at various global or domestic sites using local 3D printers.

Patent position

Serendix has filed 11 patent families in total, all through the Japanese patent office, trailing named peers ICON (67) and Mighty Buildings (53) but ahead of Apis Cor (9). AMPulse analysis

Filing momentum
10 families filed 2022–2024, 1 in 2019–2021
Filed in
JP 100%
Named competitors, AM patent families
ICON 67Mighty Buildings 53Apis Cor 9

11 AM patent families in total. Recent years are still being published, so read a filing change against the same-office figure.

Differentiation

Value Proposition

Eliminates the need for 30-year housing loans by offering high-quality, earthquake-resistant, and high-insulation homes starting at approximately 3.3 to 5.5 million JPY, built with unprecedented speed through robotic automation.

How They Differentiate

Serendix differentiates through its 'Consortium Model' (300+ partner companies) and a 'Data-Only' export strategy. Unlike competitors focused on custom architecture, Serendix prioritizes extreme speed (under 24 hours) and standardization to achieve a 'house for the price of a car' (3.3M - 5.5M JPY), specifically targeting a mortgage-free lifestyle.

Market & Competition

Target Customers

Seniors looking to downsize (active retirees), young couples seeking affordable first homes, disaster-affected regions needing rapid housing (e.g., Noto Peninsula), and hobbyists seeking secondary/vacation spaces.

Industry Verticals

Construction, Residential Real Estate, PropTech, Disaster Relief & Temporary Housing, Commercial Architecture (e.g., station facilities)

Competitors

ICON, Mighty Buildings, Apis Cor

Growth & Milestones

Growth Metrics

Over 3,000 purchase intentions historically; consortium 300+ partners; 2026 term: 38 housing/infra orders booked, teens of completions expected; targets 100+ cumulative buildings in 1–2 years and 1,000/year within 5 years after Jun 2026 mass-production shift; capital raised to ¥915M (Jun 2026).

Major Milestones

2022-03: Completed Japan's first 3D-printed house (serendix10) in ~23 hours., 2023-05: Completed residential-grade serendix50 (Fujitsubo)., 2024-05: Capital/business alliance with JR West Innovations (third-party allotment)., 2024-04: World's first dedicated 3D-printed house mortgage with Orico., 2024-09: First commercial serendix50 sold as reconstruction model in Suzu, Noto., 2024-12: Commercial kit sales of 3D-printed housing components., 2025-03: Completed world's first 3D-printed railway station (JR Hatsushima Station) with JR West., 2025-10: MOU with Planum Partners for Australia (Queensland) expansion., 2025-12: Kit sales of Expo-used serendix5 series (from ¥3.3M)., 2026-06: Announced transition from R&D to mass-production phase; capital ¥915M., 2026-07: Nationwide-first disaster housing supply agreement with Sukagawa City, Fukushima.

Notable Customers

JR West (Hatsushima Station and further rail/infra), SCG (Siam Cement Group), Noto/Suzu reconstruction homebuyers, Sukagawa City (disaster housing framework)

https://serendix.com

Recent coverage of Serendix

AM patents

AM-relevant patents linked to this company.

Patents
11
Granted
0
Families
11

Leading domains: process (11), software (1)

Filings by year: 2024: 4 · 2023: 2 · 2022: 4 · 2021: 1

  1. パネルの生産方法35126194|2023126194 · JP
  2. Building manufacturing methods2025158099 · JP
  3. 構造物の製造方法37125549|2025125549 · JP
  4. 建築物の生産方法、及び建築物35153043|2023153043 · JP
  5. Building production method and building2024079663 · JP

Funding rounds

  • Strategic InvestmentUndisclosed2024-10Lead: JR West Innovations · Source: JR West PR
  • Strategic InvestmentUndisclosed2024-01Source: Startup DB
  • Strategic InvestmentUndisclosed2023-08Source: Minkabu
  • GrantUndisclosed2023-04Lead: J-Startup · Source: J-Startup
  • Seed$0.3M2022-11Source: Tracxn