Invest with Confidence.
Build with Ai Construction.
About Ai Construction Co., Ltd.
At Ai Construction Co., Ltd., we combine craftsmanship, innovation, and cost-efficiency to redefine the construction industry. Headquartered in Kawaguchi, Saitama, our expertise shines in creating high-quality wooden buildings tailored for investors and property developers.
Specialists in Fireproof Wooden Construction
We lead the market with advanced fireproof construction techniques, specializing in four-story and five-story wooden buildings. These projects are specifically designed to maximize investor returns through sustainable and cost-efficient methods while meeting stringent safety standards.
Your Global Construction Partner
We are proud to offer multilingual support in English and French, making us a trusted partner for clients from around the world. Whether you’re an experienced investor or new to the Tokyo market, our team is dedicated to meeting your unique requirements with care and professionalism.
Why Choose Us?
- Cost-Effective Wooden Building Solutions: Designed for long-term profitability and durability.
- Reliable Expertise: A proven track record in investment property development.
- Multilingual Support: Assistance in English and French for seamless communication.
- Free Estimates: Transparency from the very beginning – no hidden costs, no surprises.
Our Commitment
At Ai Construction Co., Ltd., we value diversity, inclusivity, and excellence. We warmly welcome clients from all corners of the globe, ensuring every project we undertake reflects our unwavering commitment to quality, reliability, and customer satisfaction.
Contact us today to learn how we can help you achieve your investment goals while delivering buildings that stand tall and profits that endure.
Leadership Team at Ai Construction Co., Ltd.

CEO: Dr. Aika IIDA
Current On-Site Supervisor of Renovation Projects
Ph.D. in Comparative Literature, University of Strasbourg, France
Three Years of Vocational Training in Japanese Traditional Construction
Former Carpentry Apprentice
Master of Ikebana (Japanese flower arrangement)
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At Ai Construction, our mission is to bring innovation and precision to every project we undertake, ensuring that our clients achieve their goals with confidence.
Growing up in Japan, I dedicated myself to the art of Ikebana, earning a master’s license that taught me the importance of balance, harmony, and meticulous attention to detail—values I carry into construction.
My hands-on journey included an apprenticeship in carpentry and three years of vocational training in Japanese traditional construction techniques. These experiences instilled in me a deep respect for craftsmanship and taught me how to integrate traditional Japanese elements into modern living spaces.
Today, I apply this knowledge as an on-site supervisor for renovation projects, ensuring that every detail reflects our commitment to excellence. From subtle touches of Japanese tradition to fully transforming spaces for modern demands, I specialize in creating unique designs that are especially appealing for Airbnb and short-term rental properties.
My academic journey culminated in a Ph.D. in Comparative Literature from the University of Strasbourg, broadening my perspective and honing my creative thinking.
This diverse background has shaped my vision for Ai Construction: to harmonize technical expertise, functionality, and aesthetic design in all our projects. We are proud to deliver sustainable, cost-efficient solutions that meet the unique needs of our clients in Japan and around the globe.

COO: Tsubasa IIDA
Current On-Site Supervisor of Building Projects
Architect
Bachelor of Commerce, Chuo University, Tokyo
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At Ai Construction, we focus on delivering projects that blend innovation, functionality, and enduring value. My role as an on-site supervisor allows me to ensure that each building we develop meets the highest standards of quality and craftsmanship.
With a background in architecture and commerce, I bridge technical expertise with economic efficiency to create properties that provide long-term profitability for investors. I believe in working closely with our clients to bring their visions to life while ensuring our projects remain both cost-efficient and sustainable.
Together, we at Ai Construction are committed to building structures that stand as symbols of integrity and innovation.
AI CONSTRUCTION CO., LTD. | |
Address Contact List | 6-5-13 MINAMIHATOGAYA KAWAGUCHI SAITAMA 334-0013 TEL:048-452-8290 MAIL:info@ai-kensetsu.jp |
CEO COO | Aika IIDA, Ph.D. Tsubasa IIDA |
Year of the Founding | 2007 |
Description of Business | Building, Renovation and design of wooden building and steel-frame building |
Allowance of application | Construction / 埼玉県知事許可(特-31)第62216号 Registered Architect / 埼玉県知事登録(3)第9572号 |
Invoice number | T6-0300-0108-1725 |
Operation Hours | Monday – Friday: 8:00 – 17:30 Saturday and Sunday: Closed |
3 minutes walk from Minamihatogaya station (Saitama Railway Corporation)