The project of the tourist-residential complex on Trebevic covers various aspects of designing arising from the needs of the environment in a specific physical and social context. It deals with the formation of an urban unit in a mountainous area, examining the functions and their relations, as well as the relationship between nature and the objects themselves. Functional complexity is conditioned by modern parameters in architecture. Five case studies were conducted in which the relationship of these parameters was examined and as a result, concept segments were created for the project.