The purpose of this case-study is to show the relation between politic patronage and the urban transformations that took place in the Pablo Escobar neighborhood, between 1982 and 1995. This work analyses how the marginalization of the Moravia neighborhood population leads to the construction of social capital and strengthening of the existing social networks inside it. This work also documents how this social networks where used in Pablo Escobar’s political career in order to gain politic capital. Finally, this work shows how the Medellin sin Tugurios program changed the behavior and land usage patron from the population of the Moravia’s slums, relocated in the Pablo Escobar neighborhood.