AimsMore than five decades have passed since the preparation of urban plans in the form of guiding and comprehensive city plans to construction rules and regulations, but for some reasons, they have not achieved all the main goals, which include the inability to control of converting agricultural lands and gardens to residential and other uses. The purpose of this study is to evaluate modern architecture in the form of urban development plans in reducing urban segregation and its consequences on agricultural lands in Zanjan city.

MethodologyThis research is of the type of mixed and survey research with an exploratory approach, and in terms of its purpose, it is of an applied type. The statistical population also consists of two groups of experts from Road and Urban Development and Agricultural Department, 30 people were selected based on the snowball method, and the citizens(142 people) of Zanjan city, were randomly selected from different neighborhoods.

FindingsThe findings of the Delphi method and the one-sample t-test, which was the result of distributing the questionnaire between two groups of elites and citizens; Representing the consequences of modern architecture in not paying attention to open and semi-open spaces and removing the yard and replacing it with a balcony, which was one of the results of housing downsizing.

ConclusionThe results of the research have dealt with the pathology of urban development plans in the downsizing of urban dwellings and no attention to Garden city system and its consequences