This paper deals with the concept of “residential models” and the role it plays on human relations in residential complexes. It intends to; review the concept of residence; understand how a residential model takes form; the influence of a residential model on future human interactions. To this end, having reviewed comments and viewpoints, focused on “what is residence? which factors may create the sense of residence and how an individual can choose his/her place of residence? Finally what are the factors affecting their choice”. Then two residential models analyzed: balanced and unbalanced, and their effects on human relations. Afterwards the research hypothesis was posed: “residential model is an effective factor on human relations”. Whereas the above study is limited to a small number of complexes in Tehran, for the purpose of testing the hypothesis and, in turn, for determining sample population, the residential complexes were classified into three categories in terms of facilities, features and characteristics. From each category a sample was chosen for testing the hypothesis. It was eventually decided to test the hypothesis in Ekbatan, Behjatabad and Farhangian residential complexes. The results indicated a strong relationship between residential model and its impact on human relations: more balanced the residential model, stronger effects on human relations. On the other hand, more unbalanced the residential model, weaker effect on human relations.