Children's architecture is a means of education and development of the necessary skills, harmonious physical growth and health of the child. In this regard, the architecture of children's facilities nowadays is understood as an independent factor of education, which has a direct connection with the initial educational process and comprehensive development of the child. The purpose of the article is to consider the role of the architectural environment in the upbringing and development of the child's personality, its influence on the effectiveness of the educational process. To determine the means of architecture that affect the feelings, emotions, age and characteristic features of children, as well as to form methods of organization and planning of children's developmental and educational spaces. Children's space is one of the main educational and developmental sources, which should arouse interest, joy and excitement, ensure a safe and comfortable stay. Today, the rapid development of media and information technologies affects the child's recreational and play space in a new way. Sounds, shapes, colors, materials and various factors determine the organization of the play space. With the development of technology in modern conditions, children's environments are constantly changing and taking on new forms. The old outdated methods of forming the playing space are no longer modern enough and do not meet the current requirements for the competent development of the child. A properly organized environment shapes the child's perception, encourages him to learn about the social and material world. From the point of view of doctors and psychologists, the playing environment is an integral part of a child's healthy development. The process of play is important at all stages of growing up. The architect is also a leading expert in creating a competent play environment for learning and raising a child. Properly organized space, shape, color, texture ‒ all this forms the child's personality. It is important to maintain the balance of the game and the educational structure in the formation of the interior of the game environment. As a result, global examples of children's developmental environments and existing ways of organizing educational and educational processes were analyzed, and architectural methods of the child's perception of the surrounding environment, which contribute to adaptation in space, were revealed. The conclusion proves the importance of the influence of the architectural environment on children's behavior; the importance of forming the correct volumetric and spatial composition of the developing environment and creating a favorable environment for children.