I haven't looked much yet, but I've been following what my fellow campaigners criticize about the [Einliegerwohnung]. Basically, I agree with them. In addition, the living area is hardly properly furnishable because there are tons of doors on two sides. The storage room (i.e., a new one) can also be made accessible from the upper hallway on the plan, where one bedroom is sufficient to keep it a rentable 2-room apartment. Personally, I wouldn't want to rent this apartment because it is not bright enough for me with one (or 2 or 3) light shaft/s, and also therefore has no proper exit. It is and remains a basement. And not a [Souterrain].