Meiji Park is the first metropolitan park to utilize the public installation and management system (Park-PFI) under the Urban Parks Act, and opened in October 2023. The project site is approximately 1.6 hectares of the front yard space of the National Stadium, and the new park is being developed, managed, and operated by Tokyo Legacy Parks Co., Ltd., a consortium of six companies, of which Tokyo Tatemono is the representative constituent organization. We were consulted by Tokyo Tatemono in 2021 and were responsible for the overall planning direction and architectural design supervision. We discussed with the client how to create a new park that embodies the concept of "creating a park that will become a legacy of the city of Tokyo that we can be proud of in the world," and were involved in creating a new park life that meets diverse needs such as well-being and diversity. The park has three plazas, including the approximately 1,000 m2 lawn plaza "Hope Plaza" and the "Michi Plaza" that incorporates a waterscape based on the Shibuya River, as well as the approximately 7,500 m2 wooded area "Pride Forest." Additionally, five retail buildings, which were selected through public competition, have been placed in the park to improve convenience for park users and create a lively atmosphere. Currently, each building is home to cafes, relaxation facilities, restaurants, outdoor activity shops, and more. We were also in charge of the business planning and construction (excluding the sauna area) of the first store of "TOTOPA," an urban spa facility newly developed by the Tokyo Tatemono Group*. Located on the second and third floors of store building A, it features a sauna, a cold bath with a depth of approximately 160 cm, a fitness area, various lounges, and more. *Operator and developer: Tokyo Tatemono, operation: Tokyo Tatemono Resorts