This article is descriptive-analytical with the effect of marginal areas on crime and with the aim of controlling, organizing and improving these areas in order to reduce social damage, the achievement of this article can be a reminder to urban planners and designers that the lack of Paying attention to improvements and marginal areas can have serious risks for the whole society. One of the problems of today’s societies is the increase in crime and delinquency in various forms. Part of it is the result of poverty and unemployment, economic crises, inappropriate social patterns, and part of it is related to marginal areas, which can be said to have the greatest impact on the behavior and role model of the residents. Slum areas that are irregularly created around the cities by the residents themselves and lack any urban design and planning, and are often centers for the growth of all types of crime. In order to fight crime, the causes of its creation must be known so that it can be fought so that other healthy people in the society do not become criminals and are seen as criminals. Conducting such research in the fields of knowing the causes of people’s delinquency
provides and helps the authorities in preventing and dealing with crime. It is very important to know the effective factors in delinquency because it is currently increasing at a faster rate. Crime can be one of the most important factors preventing the progress of any society, according to the available evidence, the importance of the place of residence plays a significant role in the occurrence of all types of crimes. Investigating and analyzing and finding a way to prevent and remove all kinds of crimes that can be destructive and destructive in society will actually be an immunity and a platform for a healthy society.