In households where two generations are living together, the views on shared living and the evaluations of living conditions are not identical between the parent families and the child families. This study attempted to analyze the main causes of the differences. The results are as follows : 1) How shared living arrangements (continuance, satisfaction, living shared by two generations) are viewed is influenced by the age, health and character of the mother (the elder housewife) and the household economic situation. 2) The use of communal entrance, kitchen, toilet, bath, etc. in the present dwelling is a strong element in the view of both parent and child generations toward shared living arrangements. 3) The essential elements that affect the degree of satisfaction regarding the communal use of facilities are age and health for the mother, and financial arrangements for the child. 4) Regarding hopes and necessities for the future on the basis of present realities, it is evident that living behavior, especially the use of the dining room and bath, is strongly affected by the age, occupation and health of the mother, whereas the financial arrangements count heavily for the younger generation. 5) In the region under study (Fukushima City and its suburbs), metropolitan style shared living arrangements are gradually permeating, but this type of shared living is not necessarily the desired form in this region. Suggestions for the improvement of localized forms of shared living arrangements would seem necessary.