Floor plan single-family house city villa approx. 240m² without basement

Yes, by the castle walls I mean the half-meter bricks. I did not criticize the size. What client and drafting assistant come up with often does not fall short of the pranks of Max and Moritz. Leaving the "what we like" untouched during revisions is the core of many, I would say, "potential underutilizations". Even with four decades of experience in home planning, I cannot guarantee that you won’t be happy with your own planning – but I can assure you that an unburdened architectural plan with a high hit rate is definitely the better way :)

What would be a better wall structure from your point of view? We will reduce the garage/storage room to 30 cm. An architectural plan can never be completely unburdened anyway, personal preferences are just how they are. And we have a view to the southwest and want the terrace generously covered (possibly with photovoltaics on top). We also already have another architectural plan, more area but still less usable space. That just doesn't suit us either... It’s not a complete self-planning either, never was.

Well, it doesn't have to be fully accessible, but a bedroom with a raw construction dimension of 311 cm and perhaps 180 cm mattress width means that there is just about 50 cm of space on either side of the bed. It already gets tight when changing the bedsheets.

How would a better wall structure look from your point of view? We will reduce the garage/storage room to 30 cm.

Google here "11ant Steinemantra" :) and free yourself from the association "thick jacket keeps warm".

A completely unbiased architectural plan can never exist, personal preferences are what they are. And we have the view to the southwest and want the terrace to be generously covered (possibly with photovoltaics on top). We already have another architectural plan, more area but still less usable space. That's just not for us... It was never a complete self-planning anyway.

By an unbiased architectural plan I mean going to a (free, transparently self-paid!) architect without a thick specification sheet, just with a room list. A copier won’t get you any further. By the "other architectural plan" you probably mean an alternative draft from the draftsman of another contractor (?) And yet: a copy by a professional draftsman is still “self-planning.” Free, transparently self-paid architects are not more expensive, by the way!

I think it's okay. A few minor things: the bathroom door needs to be reversed. The toilet and the closet should swap places. In the children's bathroom, the toilet moves to the other side and the door is pushed to the other wall + reversed. Unfortunately, this is not possible downstairs, but I still wouldn't have the door open outward. The children's room next to the bedroom swaps with the fitness room. The dressing room is 20 cm narrower in favor of the bedroom, and the window is reduced to the size of the one in the children's bathroom. The terrace roof will make the kitchen dark. I am still in favor of glass. A bit more depth would do the rooms on the upper floor good. Sloping walls are a sign of a makeshift solution - shameful for about 240sqm.

Google here "11ant Steinemantra" :) and free yourself from the association "thick jacket keeps you warm"

Can you please send me the link directly, I only find lots of mentions of the post but not the post itself. It is clear that thickness is not everything here, none of the ETICS variants are particularly appealing to us.

I think it's okay. A few minor things: The bathroom door needs to be rotated. Swap the WC and the closet so they switch places. In the children's bathroom, the WC moves to the other side and the door is pushed to the other wall + rotated. Unfortunately, this is not possible downstairs, but I would still not have the door open outwards. Children's room next to the bedroom swaps with the fitness room. Dressing room 20cm narrower in favor of the bedroom, window reduced in size to the size like in the children's bathroom. The terrace roof will make the kitchen dark. I am still in favor of glass. A little more depth would do the rooms on the upper floor good. Slanted walls are a sign of a makeshift solution – shameful for ~240sqm.

Thank you very much for your feedback! It's "only" just under 200sqm each, but of course, slanted is not optimal.