Great, Steve! I knew, it must be there and the Netto Supermarket is, where the Factory was. The other factory I showed is somewhere else...Matt, Thanks! I found the Felix Weissbach Villa at Schönburgstrasse 59. There is a Bridal Shop and other rental units located in it now. The building to the far right side of the photo is the other villa. This photo is from an in active rental apartment advert.
Here is a photo of the villa from the article you quoted. The other villa can be seen at the far right side of the photo.
Robe de mariée is the bridal shop located in the villa.
Doesn't appear any of the main factory buildings are present. The other villa and standalone building are still present (but heavily modified).