Abstract
The aim of this study is to investigate the actual condition of environmental transition of the elderly in terms of their outdoor behaviors and relationships among neighbors, in the southern area of Ikuno ward, Osaka city, in which parts ofcongested area composed of wooden houses were renewed. The results are as follows; 1) after the move to new public apartment houses, opportunities for meeting the neighbors at outdoor spaces close to dwelling units, decreased drastically, due to decrease of outdoor behaviors, such as chatting, caring for plants, cleaning and so on. 2) the places used by the residents in the neighborhood before the move, are the important elements which make the elderly to keep their life styles and customs. 3) location of households with previous neighborhoods and social activities of residents' sociation in new apartment houses influence the construction of relationships among the neighbors.