Migration and ethnic characteristics of the population, along with the general population trend, population density as well as the age, socioeconomic, racial and even gender structure of the population, have an impact on the transformation of cultural landscape of an area. It has been shown here on the example of the Dubrava district in Zagreb by analyzing the basic demographic indicators and their reflections on the visible space. A case study has been applied to explore the impact of Janjevci on a part of the Dubrava landscape, more precisely on one shopping street – Konjščinska Street. The research has shown that Dubrava, i.e. its “narrow” centre, was largely populated during the period from 1950 to 1970, and that the population growth was mostly influenced by immigration from other parts of Croatia, and from Bosnia-Herzegovina. Although the first immigrants left their mark on the landscape in which they had settled, so that it was possible earlier to identify the area in the parts with individual house building where different groups of immigrants lived, today this is almost or even completely unnoticed. A long-time co-existence and recent trends of copying in both construction and garden decoration have reduced or completely erased the differences in the cultural landscape. The effects that one ethnic group can have influence on a directly visible cultural landscape can be noticed only in the enormous, aesthetically, functionally and physiognomically substantially different houses in Konjščinska Street.