Noch, another German manufacturer, makes mostly detail accessories such as figures and vehicles.  Noch manufactures kits for layout construction called Terra-Form, but these kits are not available in the North American market. In earlier times, they offered the only castle in Z-Scale, along with a couple of Alpine houses and a church. These are not currently in their product line but often turn up on dealer’s shelves.  Here are some of their Z-Scale scenes:

All photos courtesy of Noch

   Noch also manufactures Z-Scale layout forms which are discussed here.  Noch’s website is located here.