The population of Vienna is gradually increasing. Since the end of the 90s, there has been a worldwide urbanization trend and it also affects Austria. According to the current population projections by the Department 23 (Economic Affairs, Labor, and Statistics), the two-millioninhabitant mark of Vienna will be exceeded by 2029. In order to cover the rising demand in the housing market, the market should be continually expanded and modernized. At the present stage, new, highly ambitious projects are being implemented in well-defined urban developmental areas adapting to the modern residential needs. However, in order to stabilize the housing market without any funding from political support programs and to counteract the scarcity of urban building land, further independent and complementary construction methods are needed. For this purpose, the concept of urban densification of the existing building stock provides an array of living-space creating measures. ^Strategies for infill development, such as horizontal and vertical expansion of already existing building structures and changes in user behavior of the resident population open up a wide range of connecting points and adaptation possibilities. Attractive living space is thus seamlessly integrated into medium to densely populated city areas and is connected to the existing infrastructure. Furthermore, the housing market can be stabilized due to the increasing density of the local population. Multi-layered project strategies within a district can equip under-developed mixed areas with completely new qualities and initiate a transformation to create more viable city districts. As an additional measure, renovation of the historically valuable building stock guarantees the preservation of the local identity and secures constructional conservation for the future. ^The aim of this thesis is to investigate whether and to what extent the potential of housing establishment can be increased by the large-scale application of urban densification. For this purpose, a manageable area in the 10th district of Vienna has been chosen, the one with the largest predicted population growth and housing needs until 2034. All properties and buildings of the eight-block neighborhood that are located in the district were recorded in an object database and were classified according to their present state, the equipment, the parameters, the size, the inhabitants and their use. The application of three different scenarios, which is based on this data set, provides an overview of the urban densification potential of the district. ^For this reason, I tried and tested methods such as attic flooring, the addition of floors, the building and the furnishing of inner courtyards with dwelling-houses, as well as strategies related to block-encompassing enlargement which have recently been discussed in research. With the help of a detailed description of the selection criteria, a rough estimation of the densification potential is given for further urban areas of Vienna with similar characteristics to those of the area investigated in this thesis.