#Japan #Tokyo #High-Performance #JGBA #Seiz

JGBA Seminar Highlights

On May 19, 2026, the Japan Good Builder Association (JGBA) hosted an online seminar titled "Strategies for Promoting High-Value Housing to Overcome Low Profits in High-Performance Market." The event attracted 21 participants, including influential leaders from the sector.

One of the key speakers was Tatsuya Oikawa, the CEO of Seiz Co., Ltd., a company with a remarkable track record of being the top supplier of residential properties in Japan for ten consecutive years. During the seminar, Oikawa and other representatives discussed their effective management strategies that have contributed to this success.

Seiz Co., Ltd. manages to sustain a stable workforce while increasing its revenue by 2.4 times, showcasing an efficient 'elite team' organization. Their approach emphasized strong insights into customer engagement, sales, and management principles, shared in depth during the talk.

Oikawa stated that a leader's most crucial role is to "draw the goal," referring to the principle of pursuing authenticity that has been at the core of their corporate philosophy for 16 years. He highlighted that the management system is not solely based on numerical results; rather, it integrates an evaluation mechanism founded on behavioral traits and values. This has fostered an environment where employees take the initiative in their growth, leading to the formation of a cohesive and robust organization aligned with their company ideals.

Feedback from attendees indicated the seminar's effectiveness: participants remarked, "It was a meaningful time, covering practical content and methods for ingraining corporate philosophy" and "Because of the inherent value in high-performance products, I understood how it allows for profitability without engaging in price wars."

About Seiz Co., Ltd.

Located in the Edogawa and Katsushika districts of Tokyo, Seiz Co., Ltd. focuses on constructing both custom and ready-built houses, as well as engaged in remodeling. The company prides itself on not only design but also high housing performance, successfully implementing the "Super Wall Method", which ensures high earthquake resistance, airtightness, and insulation. This has secured them the top position in Japan for ten consecutive years in terms of construction numbers using this method. Seiz offers an exhaustive one-stop service ranging from land acquisition, design, construction, and sales to lifelong aftercare.

For more information, visit their website: Seiz Co., Ltd.

JGBA's Annual Event Schedule

The Japan Good Builder Association organizes various events throughout the year, including seminars aimed at remodeling companies, local builders, and covering topics such as marketing, construction, management, aftercare, and recruitment. Besides seminars, the association also hosts highly popular site visits for both members and non-members, as well as events like golf competitions and local networking gatherings.

To view the annual event calendar, check: JGBA Event Calendar

About the Japan Good Builder Association (JGBA)

The JGBA was established to bring together local builders, contractors, and companies in the housing supply chain, focusing on collaborative improvement to uplift the housing industry. The association believes that the growth and development of member companies directly contribute to advancing the entire sector through diverse learning opportunities like seminars and site visits. They are committed to sharing insights and best practices while also allowing non-members access to some informational resources.

Association Information

Name: Japan Good Builder Association (JGBA)
Headquarters: Strong Akasaka Building 4F, 3-5-5 Akasaka, Minato City, Tokyo
Chairman: Ryo Tajima
Established: January 20, 2021
Website: JGBA Official Site
Media Contact:
Phone: 03-6277-6079
Email: [email protected]