This project involved the renovation of River City 21 Shinkawa, a tower residence with 505 units completed in 1995. The property is located in a riverside location facing the Chuo Ohashi Bridge along the Sumida River, with an attractive view of nature and openness. The Chuo Ohashi Bridge, which spans the foot of the condominium, is lit up at night and is known as a landmark of the Tsukuda area. A promenade has been developed along the Sumida River, making it a place of relaxation for local residents to go for walks and jogs. The residences are available in a wide range of plans, from 1R/1K for singles to 2LDK, and there are many unique floor plans, such as Japanese-style rooms with Ryukyu tatami mats and plans with spacious stock rooms. Following a change of ownership, we were commissioned to design and construction this pioneering bayside tower condominium, a property with high potential for nature and city coexistence, with our mission of adding value that is in line with the current era.