The main task of the paper is the relationship between the space in urban- architecture meaning and the social communication, social processes. This problem is resolved at a housing estate, which is specific urban place with mostly residential function, absent of typical street, a lot of dwelling-houses etc. The author chose for his ethnological research a smaller part in neighbourhood of Petrzalka. The residents of this part are visibly more active in citizen life than those who live in other part of housing estate. The first author premise was due to its specific urbanism (a lot of green places, majority of low-storied dwellings), but research exposed that the main factor is age of this part.