I quite like the idea of the ground floor. We also have the dining room and living room separated and are quite happy with it. At first glance, the living room looks pretty small, but that’s only because of the overall size of the floor. However, it is a dark room during the day, and in the evening you have to close the shutters because otherwise the sun shines directly on the TV. So if you only use the room as a TV room, that’s okay; if it’s supposed to be your family living room, then it wouldn’t be for me. I would also see the risk that a TV might be placed in the kitchen/dining area as well, and the actual living room might be forgotten or turned into a playroom. For thermal reasons alone, I would also put a door on the pantry. If the dining room is also the main living room for family and guests, you always have a direct view of the kitchen area or enter the room through it. So you are always forced to tidy up right after cooking (would annoy us a lot, but it’s a matter of taste).
Of course, you can think about having a sleeping area in the basement. It’s pleasantly cool in summer, easily heated in winter, and you don’t really need a view there. I would find a bright office more important if it is used regularly. You’re also closer to the children’s rooms, which can be an advantage. Regardless, I would also consider a toilet in the basement. Depending on what is planned for the hobby room, that could make sense.
In my opinion, the upper floor has completely gone wrong. The children’s rooms simply belong in the south or southwest. So far, you haven’t given any counterarguments as to why you don’t want to do it that way. The best location goes to the bathroom!!! The second-best spot goes to the dressing room, and the bedroom is a showcase open on all sides? How do you intend to create privacy there? In my view, that only makes sense if you have an extremely exhibitionistic tendency. Bedroom 2 is, in my opinion, the only successful room on the upper floor, although with the door position and the windows’ position, there is not exactly generous space for furniture despite almost 17m². Plus, the neighbor can easily look into the bed, and the shooting slit to the north makes the desk area quite dark. It is anyway the darkest room on the whole floor. Bedroom 1 is totally off with the setback. Also, you can already see on the sketch that the only closet space protrudes into the north window. The space for furniture is limited here as well, and the desk is badly placed. Another arrangement doesn’t really fit either. If you want to put a sofa or a large bed in there, how should the room be divided? Or does the desk have to go then?
The children’s bathroom is obviously a disgrace for a house of this size, but that has already been mentioned. On the other hand, the parents’ bathroom is absolutely oversized. The partitioning of the toilet also puzzles me in a purely parents’ bathroom. With 20m², I wouldn’t sit in a 1.5m² toilet. Moreover, the extra sink is absolutely pointless. We have a mini sink like that in our guest bathroom, and I would never wash my hands there if a double sink is just 3m away. Also, those things flood the entire room. The bathtub is also just thrown into the room and furthermore belongs in a child-accessible room. They usually use it much more often than the parents. How often do you actually take a bath yourself? The sauna would be perfect for you in the basement as well. It doesn’t take away living space upstairs, and there is an access to the outside. Even if you make an access to the garage (the terrace there, for example, requires permission), you first have to go through the dressing room and bedroom to stand half-naked on the freely visible garage, which is located on a hill. With binoculars, people from the whole village could admire you.
The exterior is also not really my taste. The garage is too high and too far forward on the property, the carport is too low. Why do I need a window in the stairwell where no light comes in anyway because of the parked car and the roof (north side)? Why is the garage 5.5m wide? That’s too little for two cars but extremely wide for one. You’ve got a storage room for equipment etc. behind it, right? In the south, you already have a lot of glass surface. Is the pantry really supposed to get a floor-to-ceiling window? If you write your shopping list on the terrace, you can check the inventory directly; otherwise, I find that very odd. A floor-to-ceiling window in the dressing room also makes no sense to me at all. The same goes for a floor-to-ceiling window in front of which I put a sofa. In the dining area, you have no space for furniture because of your showcase windows. Where will the children’s puzzles, board games, or the small ones’ toys be stored if they are supposed to mainly stay in the living areas with you? Where are they supposed to play anyway? A Playmobil corner already takes up quite a bit of space.