The main purpose of this typology is to define relatively homogenous areas with a characteristic type of housing and consequently enable an easier, generalised interpretation of analysed data, which normally appear on maps as a confusing mosaic. The typology presented consists of six basic types of residential areas: the historical core of the city, inner city tenement houses, inner city villa neighbourhoods, outer city working class houses, housing estates, and inner suburbs.
The typology applies to the territory lying within the current city administrative boundaries.