Within the framework of this article, a pre-project urban planning analysis is carried out, including a situational analysis at the level of the St. Petersburg agglomeration, the Vsevolozhsky municipal district; a comprehensive analysis at the level of the Sverdlovsk urban settlement, the village of Novosaratovka and the territories adjacent to it. In result of the synthesis of the main characteristics of the territory, identified by the comprehensive urban planning analysis, a scheme of the modern use of the territory is drawn up. A unified «sub-center model» has been developed on the example of Novosaratovka with the possibility of its application in the integrated development of identical territories in the peripheral regions of the St. Petersburg agglomeration. The sub-center model is represented by four interrelated components: ecological (the basis for other components), public, comfortable living environment and a modern system of transport mobility. The disclosure of such an important component of the model as a public is considered as part of the formation of a conceptual proposal for the development of the territory of the proposed city center of the sub-center - the village of Novosaratovka (according to the author's proposal). The prerequisites of the concept and its structure (framework) – «cores» and connections in such areas as social and business (business, scientific clusters) and socio-cultural (cultural, sports clusters) with their characteristics are described. A town-planning design proposal for the territory of the city center has been presented.