Vienna is famous for its social housing system, which offers quality living at low rent. AdvertisementGemeindebauten, city-owned flats, are part of Vienna's social housing project and symbolise affordable and high-quality housing within the city. Today, Vienna is famous for its affordable social housing. The have upgraded and set up energy-efficient heating systems, insulation, and renewable energy installations in many of their social buildings. Furthermore, applying for social housing can be time-consuming and requires many steps, and you need to upload certain documents depending on your individual situation.