TOP Business information Company Profile Employment information What's New Contact Us Privacy policy site map Important Notices September 3, 2019 About the end of non-life insurance agency business As a company that can meet various needs Kosei Development Co. , Ltd. is an affiliate of Kosei Kensetsu Co. , Ltd. , which is a member of the JR Group.Established in 1980 (Showa 55), we are operating here. Since the establishment of the company, we have been engaged in the maintenance of land and buildings, parking lot management and management, non-life insurance agency, etc. Currently, in addition to the conventional business, we have expanded our business to the security and construction industries, and have grown into a company that can meet the various needs of society. We aim for further development in the future, so that we can earn the trust and trust of our customers.We will continue to make efforts so that we can continue to be a company that can contribute to society. We look forward to your continued patronage and support in the future. Security Security Construction industry Construction industry Real estate management business Real estate management business Parking lot management Parking lot management What's New October 2, 2019 Notice About parking lot fee revision September 3, 2019 Important About the end of non-life insurance agency business March 1, 2019 Notice The homepage was renewed Employment information Would you like to work with us in Hironari Development? It is a workplace where you can play an active role regardless of experience or age. View employment information Privacy policy site map © 2019 Hironari Development Co., Ltd.