Abstract: This article is dedicated to the main factors that affect the creation of modern projects of the children leisure and entertainment centers. The object of this research is the children leisure and entertainment centers, while the subject is specificities of its designing. The author provides an overview of the most common examples of the existing projects of the children leisure and entertainment centers, built over the period from 2006 to 2017; as well as presents a systemic analysis of the city-planning, functional and architectural-artistic characteristics of each object. The acquired results allow determining the key factors that affect the designing of the children leisure and entertainment centers, among which are the city-planning, socio-functional and psychological. Each of these factors must be considered in designing the children leisure and entertainment centers. The author underlines that the world practice of designing the children leisure and entertainment centers knows the cases of applying studies in the area of children and adolescent psychology, sociological survey data, as well as the city-planning peculiarities; however it carries an occasional and irregular character. The scientific novelty lies in systematization of the determined factors for the purpose of aligning and improving the designing of the children leisure and entertainment centers.