Intensive socio-spatial differentiations are a characteristic trait of Latin American societies and have a powerful impact on land use patterns. The large scale of residential segregation pattern is not only typical for most of Latin American cities but also of Chilean cities. In the past two decades these patterns have been undergoing transformations in two main aspects showing ambivalent directions: firstly, on a geographical scale at which segregation takes place —in some cases contracting and in others expanding— and secondly, on segregation’s growing malignancy. Regarding the urban context we can realize a new urban structure within the cities in Chile and Latin America. The most notorious and extensive change of the traditional residential segregation pattern is the emergence of gated communities for medium and high-income groups not located in their traditional areas of residence but rather closely to lower income neighbourhoods! The issue that new social and physical borderlines have emerged plays not only an important role for the social mixing of otherwise evenly poor areas, but also for new opportunities of socio-spatial integration processes as well. That’s why the general research problem focuses on new social integration possibilities or barriers on the base of the observed spatial proximity.