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.

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: Aika IIDA, Ph.D.

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)

I blend Japanese craftsmanship and investor discipline.
After a carpentry apprenticeship and training in traditional methods — plus a master’s license in Ikebana — I learned balance, precision, and respect for materials.
A Ph.D. from the University of Strasbourg sharpened analysis and cross-cultural communication.
Today I lead on-site supervision for renovations across Tokyo, delivering clear scopes, realistic timelines, and weekly updates.
The goal is simple: spaces that look calm, work hard, and return value for homeowners and investors.

COO: Tsubasa IIDA

Current On-Site Supervisor of Building Projects
Architect
Bachelor of Commerce, Chuo University, Tokyo

Trained as an Architect and serving as COO/on-site supervisor, I run schedules, trades, and quality control so projects finish as planned.
My B.Com (Chuo University) keeps every decision tied to cost and long-term value — crucial for investors and remote owners.
From permit submissions to final walkthroughs, I lead a transparent process with weekly jobsite updates.
The goal: spaces that perform, budgets that hold, and handovers you can trust.

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