Purpose: With the increase of Iran's urban population, large cities faced many problems and new cities were located and built to attract population overflow in the area of these cities. The new city of Sahand was built to reduce the demographic, economic, social and physical problems of the metropolis of Tabriz in the sphere of influence of this city. With the creation of Mehr housing in phases 2, 3 and 4 of this city, a new issue was raised. This article seeks to examine and identify the social issues and problems of this city, prioritize them and identify solutions to reduce the impact. Methodology: The research method used in this research is applied and survey. Findings: Results show that the most important problems are: drug use, class differences, cultural poverty, distrust of neighbors, distrust of city officials, economic poverty, presence Thugs, the presence of badly supervised women, unusual relationships between girls and boys, harassment of women, quarrels and conflicts, running away from home, begging, unconventional relationships between married men and women, child abuse and white marriage, relationships Poor neighborhood, general dissatisfaction with living conditions, feeling of insecurity in parks and gardens, inadequate lighting and lighting of roads, flooded roads, traffic jams and the problem of parking cars, unsuitable sidewalks, lack of medical centers, lack of playgrounds for children and adolescents, Lack of green space, inadequate garbage collection system, low quality of housing, lack of recreational space for citizens, etc., which are the most important factors in the occurrence and emergence of social harms in this city. Originality/Value: In this paper, investigation and identification of social harms in the new city of Sahand, Tabriz (With emphasis on Mehr housing) is done.