Haus mit Balkon is kind of favourite for German. They are very pround if their apartement has a balcon attached to it. Even, it was one of the subject of conversation when I learned German long time ago. The price of apartement with balcon is also more expensive than the normal house.
I asked about this to one of my German colleague, and she said that they actually prefer to own a house with the yard, but how can they find a space in a town like Berlin? So Balkon is the option, when they need to have fresh air while still staying at home.
I prefer Rumoh Aceh, which always has space under it🙂