Thanks for the update. The term we use for 2 homes sharing a common wall in Canada is "semi-detatched," but "semi-attached" sounds more optomistic.
I had to look up "Bautagebuch" to find out it meant "Building diary." I'm asuming this is some kind of on-line blog with lots of photos and comments as the building progresses.
Looking forward to the big foundation hole. You know if you start before the winter frost it is much easier to dig?
WDE.