Route South-West takes you through the three Viennese districts of Meidling, Favoriten and Liesing. Meidling is the 12th district of Vienna, created in 1892 by the merger of several formerly independent municipalities. At the end of the 19th century, almost the entire area was built up with apartment buildings laid out in a grid pattern. In the 20th century, several significant municipal housing developments were built here. In the western part of Favoriten, the 10th district of Vienna, lies the area of the Wienerberg. Here, in the 19th century, extensive brickworks were built on the southern slope, whereas the northern slope was densely built up with Gründerzeit apartment buildings, especially since the end of the 19th century. In addition, the popular recreational area at the Wienerbergteich is located here. The 23rd district of Vienna – Liesing – is located in the south and south-west of the city. In the 20th century, new housing estates and important commercial and industrial enterprises were built here between old village centers. The western parts of the district in the Wienerwald have a high proportion of owner-occupied homes.

Route South-West begins at Wienerberg in the IBA neighborhood Biotope City, which demonstrates that it is possible to build densely and green at the same time while still achieving cooling effect for the surrounding area. The neighborhood was completed and occupied in 2021. The tour continues to the IBA neighborhood Wolfganggasse, where new forms of housing for single parents are being implemented for the first time in subsidized housing in Vienna. The projects are nearing completion and will be occupied as early as the beginning of 2023. In the Wiesen-Süd neighborhood in Liesing, around 730 apartments were built on several building plots. For the first time in Vienna, community spaces were planned here across building sites and a joint utilization concept was developed with the Wiesen-Dialog. The IBA project Wiesen-Dialog can only be visited as part of a guided tour.