The paper discusses the process of implementing the transition from a monocentric planning structure to a polycentric one on the example of Kazan. In addition, the theoretical concepts of polycentricity presented by the authors of papers were analyzed, as well as the methods of deduction, induction, classification and separation of concepts were used. Then a secondary analysis of the transition to a polycentric planning structure was carried out. For the analysis, the following materials were selected - a sociological survey on the assessment of the quality of life in cities on the website Domofond.ru, Strategy of socio-economic development of the municipal formation of Kazan until 2030, general plan of Kazan, reports on the implementation of national projects and municipal programs. The development of the Small Kazan Ring and the Big Kazan Ring in the city is an important step for the development of polycentricity of urban space in the concept of the city general plan.