These are of course always good approaches. With few rooms, you don’t have many options anyway. But all your designs have the characteristic that you feel like you have to walk through the whole house to get from the bathroom to the bedroom. That might not be so bad for a single person, but you do have to actually expect that Gerard Butler makes you coffee in the morning and you’d rather disappear quickly into the bathroom before he sees you in daylight. Or a daily problem: neighbors can probably look well inside your place. Moving only between bedroom and bathroom with closed shutters or dressed up can be planned a bit more discreetly. Regarding the last design: the wardrobe is planned on the outer wall, which should be avoided. Then you have a window above the bed. You can’t just air out 3 times a day or clean that so easily. Then the hallway is missing, which you should have with a dog. At least separated. Otherwise, anyone can quietly look over your shoulder from the entrance door. You don’t plan it like that. No caveman would sit with his back to the entrance, by the way, this also applies to workplaces. The kitchen is placed quite well, but you also have to say that a freestanding island is more open, therefore more generous and actually brings less surface area with more use than a U-shaped kitchen with access from one side. Ultimately, a design is most cost-effective when the roof has the load-bearing wall in the middle on the ground floor. I admit, I have had 3 approaches with about 70/75sqm now, but discarded them again. House planning is not easier when you only have 3 rectangles to zone (bedroom, bathroom, technical room). Nahedran is also over. Maybe you would find it okay, but I have a problem squeezing a desk in somewhere or maintaining zoning private/open (despite a single-person household). U-shaped kitchens are a matter of taste and I can plan them, although I don’t like these cages. https://www.hausbau-forum.de/threads/grundriss-bungalow-ca-115m-2-personen.47702/page-3