Prefab housing estates are still home for millions of people in Slovakia. At the time of their planning and construction, the communist regime determined not only the politics and economy of a country, but also larger architectural projects such as housing estates. These housing estates were built on large, nationalized properties, where the most important aim was to build as many apartments as possible in the shortest time - as a demonstration of communist capability - instead of creating a good and pleasant housing environment for people. This thesis deals with the biggest Slovak prefab housing estate - Petrzalka. Nowadays, it is home for 105000 inhabitants, which means that any urban redevelopment would have a far-reaching impact. Because of political interests and the rapid population growth at the time of planning, the main priority was the speed and effectiveness of construction. Social aspects of housing, such as public and urban functions and environmental development were not considered important, and Petrzalka became a nondescript, mono-functional 'dormitory-city'. The rapid construction of Petrzalka resulted in a limited variety of buildings, and thus, in very monotonous area with difficult orientation. The analytical part of this thesis introduces the current state of Petrzalka and deals not only with the problems and deficiencies of the housing estate, but also with its possible development potential. This analysis results in a project for an urban axis for Petrzalka consisting of different building types. These are thoroughly explained and applied in a selected part of the housing estate. Proposals to revitalize the green area and the public space are introduced as well as concepts to improve the traffic flow. The new urban axis of Petrzalka, as well as improved and useful public areas should change the biggest Slovak prefab housing estate into a lively home with a variety of urban, cultural and public activities and provide job opportunities for the inhabitants and visitors.