In the last decade, the housing issue in Germany has become one of the central questions of our time. In the public perception, this is particularly evident through the increase in prices and rents in relation to incomes, as well as the scarcity of housing in places where employees work and their children go to school. A less considered aspect of today's housing issue is the question of housing supply, its distribution across various population groups, and potential impacts in other societal areas. Not only the price increases of the past decade, but also the COVID-19 shock with remote work, quarantines, and curfews have once again made housing supply a central topic. The aim of the project is to identify the social and economic influencing factors and consequences of overcrowding. Additionally, the study will examine to what extent the objective availability of housing corresponds to its subjective perception.