Fatemeh MortezaieManesh - Corresponding author’s: Master of Architecture, Department of Architecture, Science & Research Branch, Islamic Azad University, Qazvin, Iran
Kamal RahbariManesh - Assistant professor, Department of Architecture, Science & Research Branch, Islamic Azad University, Qazvin, Iran
Mostafa Kiani - Associate professor, Department of Architecture, university of Architecture and Urbanism, Tehran, Iran,

Designing based on environment is meeting the physical psychological needs and of individuals in area to continue life in area. In this study, with the aim of providing more efficient and healthier environment and residential areas as well as satisfaction of residents from living complexes, the effect of housing density of residential apartment complexes, as one of the human - environment factors on peace and satisfaction of residents and the child growth is examined. With regard to the interdisciplinary approach to research, the field of environmental psychology to explain the hypothesis and test it properly diagnosed. This study seeks to answer the question: does the residential density of apartments have any effect on comfort and satisfaction of users and their mental and physical growth? Research methodology is a kind of description of comparative correlation research. The results of ANOVA and Pearson correlation coefficient indicates that observing the proper residential density can lead to the user's consent and has no impact on children's anxiety

environment psychology, residential complex, residential density, satisfaction with housing, child anxiety