Different authors have linked the existing land and housing price system as a factor that
perpetuates residential segregation and inequality, this situation is exacerbated when it comes
to some immigrant groups that end in degraded areas with characteristics below the minimum
legal for habitability (CORTÉS, 2000; MUSTERD, 2003).
The hypothesis is that immigrant population of Barcelona city is located primarily in those areas
of lower quality housing and that this immigrants concentration areas with lower quality housing
index matches with the lower housing prices. On this research it was made the Housing Quality
Index (iQviv), and the Housing Characteristics Index (iCviv), and it was observed their
correlation with the Immigrant Concentration Index (ICI) and the evolution of the Housing Value
from 2004-2010, in Barcelona. Observing that the areas with lower housing quality index and
where immigrants are concentrated not always matches with the areas that have the lower real
estate prices.
The housing market is a determinant factor of the social-spatial structure of the city, through
which it can be changed the city model to be achieved related with concentration of groups and
social segregation. The government residential strategy (in terms of location, tenure
arrangements, diversity of uses) should guide the city towards socio-spatial mix, coexistence,
and social development of the population. Also it should have a greater impact on the residential
market in order to avoid housing speculation and overvaluation, instead of taking advantage of
the immigrant population needs, and therefore reducing their possibilities of housing access to.