Rapid urbanization and social structural change have caused overpopulation in many metropolises. Such a change not only resulted in the creation of densely-packed assembly housing complexes, but also made neighborhood community upward developed. This, among others, seemed to have diluted neighborhood relationship and created social problems. To learn if housing patterns have an effect on residents, this study conducted an investigation on assembly housing varying according to three variables: elevator supported or not, density and community formation. College students who are current residents of the assembly housing were asked to fill out questionnaires. After the research data were analyzed, the study concluded; (1) male residents interact with others in the community more frequently than female residents; (2) security is a major concern to female residents while male residents care more about territoriality; (3) housing complexes without elevator supported positive neighborhood relationship and those with less average floor residents have positive effect on social relations.