The process of urban verticalization has been growing over time in urban spaces all over the world. Brazil is no different, and in recent decades this process has also been expanding to medium-sized cities. In this work, we present the dynamics of this process in a medium-sized Brazilian city, Guarapuava - PR, and discuss its expansion in this urban space. This work is the result of the author's master's thesis, entitled "The Production of Urban Space: Characteristics of the verticalization process in Guarapuava - PR (1999-2015)".