Abstract: This article examines the aspects of assessment of efficiency of the functionality of architectural environment of public pedestrian spaces. Special attention is given to the analysis of characteristics of the pedestrian activity, which reflect the level of social efficiency of functionality of the public pedestrian spaces. In the result of the conducted research, the author determines that each fragment of the pedestrian network represents a dynamic space, the state and functions of which constantly change depending on such factors, as weather conditions, time of the day, mood of the residents, and other that create the circumstances for realization of certain types of activity – processes that reflects the important properties of the architectural environment of urban public spaces. The article examines the classification of process carried out within the architectural environment of the public pedestrian spaces. The author analyzes the existing methods, which allow classifying and assessing the types of pedestrian activity, as well as formulates the methodology of identification of the level of social efficiency of the architectural environment of public pedestrian spaces within the formed urban development. The scientific novelty of the article consists in substantiation and systematization of the processes that take place in the public pedestrian spaces along with their development and classification. The methods and principles laid in the methodology of assessment of the social efficiency of functionality of the public pedestrian spaces allow on the stages of pre-project analyses, internal audit and external expertize of the projects and implemented decisions, determining the format and vectors of reconstruction of the public pedestrian spaces in the conditions of the established urban environment.