As a consequence of its urban development in the beginning of the 20th century, Petrogradskaya storona, the district of St. Petersburg, turned from an abandoned area into a well-developed territory with modern tenement houses and public places, contemporary infrastructure, industrial enterprises and educational organizations. Caused by the population increase in the city, as well as the presence of non-built space in the district and the construction of the Trinity Bridge to serve as a connection with the center of St. Petersburg, this urban development was influenced by the socially-mixed population of the area - representatives of bourgeoisie and intelligentsia initiated urban projects and common people created demand for them. The urban development of the Petrograd district, analyzed through the use of modern infrastructure as well as the construction of new tenement houses and public places as its main processes, is characterized by certain common tendencies. The most important of them are the following ones: the primacy of private initiative and charity under governmental regulation; attention to the requirements of representatives of different social groups and the provision of equal access to conveniences in tenement houses and to events in public places. The use of modern architecture,...