Slowly new construction methods replace the "old way" based on Le Corbusier use of concrete and pilotis instead of supporting walls. Most the buildings where limited in height and need constant maintenance due to relatively poor delivered quality. This helped a workforce of "Usta" (masters) educated by their peers to work with relatively low skills and equipment. I have seen entire houses deconstructed with one sledgehammer and tubes of gas for the steel. But now the expectations are increasing for higher buildings and better quality and this old Usta's ladder can't fight with the cranes.