In the senior living environment, a significant relationship between leisure activity involvement and high life satisfaction among the elderly is critically observed. Behavioral and affective responses are considered as outcomes of a person's level of competence interacting with environmental demands imposed on a person. A successful environment thus should be functional, supportive, and meaningful to its residents. It not only encourages membership, activity, and engagement, but also provides a familiar place as home. The hierarchy of space is of particular importance to the elderly who are increasingly vulnerable to abrupt changes in environment stimuli. This paper thus investigates the relationship between space hierarchy of the building and residents' activities in order to understand the success of the first continuing care retirement community (CCRC) in Taiwan. Through the analyses of its spatial structure, a conclusion is reached for future design references. The continuum-of-care model is also explained as part of the aging-in-place model.