Through the study of localisations and of urban practices, this articl
e wants to describe how foreign migrants used to live in the Parisian
housing background from the end of the nineteenth century to the 1960'
s. During a long period, the constraints of people's housing and the c
ustoms of intense social exchanges made the formation of separate fore
igners' worlds difficult in the core of the city, immigrants' grouping
s were more visible in the suburbs, but became integrated in the Paris
ian population's general movement, in its spatial, social and even pol
itical aspects. The proximity, sometimes even the confusion, between i
mmigrants' housing and local people's housing cbn be followed until th
e 1960's. A break came at this moment. The transformations of housing
and the changes in the popular way of life created a new distance betw
een the immigrants of the sixties and the Parisian population.