Pair City Sakurabia Seijo is a senior welfare facility completed in 1988, located in the Seijo district of Setagaya Ward, Tokyo. Designed by Taka Takada House and constructed by Takenaka Corporation, this building represents an important example of late 1980s institutional architecture in Japan. The facility demonstrates thoughtful design principles tailored to elderly residents' needs, incorporating practical spatial organization with attention to accessibility and comfort. The architectural collaboration between designer and contractor reflects the period's approach to creating dignified living environments for aging populations, making it a notable case study in Japanese geriatric facility design from the Showa era.