I have to agree with on his first sentence.
The bathroom and the noise exposure in the bedroom from the sink
I would be more concerned about that sliding door, which is anything but soundproof. In addition, there is a living room (dining area) beneath the bathroom, which does not exactly benefit from the bathroom’s drainage. Due to the two window sides, there are hardly any options for disposing of the wastewater. The spatial feeling of a desired large bathroom is taken away by the massive brick shower in the middle.
What if a child comes after all – then they will have to sleep next to the washing machine and the shower…
If it were a 109 sqm terraced house, you'd live with it… but if you pay for a Weberhaus, I would invest more in the planning.
.
I kind of stumble over this sentence:
For personal/health reasons, however, the second entrance through the bedroom is mandatory even if it costs a few square meters.
Whether it is incontinence, mobility impairment, or whatever limitations there may be: the whole house is not built for disabilities. When you enter the bathroom, you look straight at the toilet; multiple tight spots and corners are artificially built in; in the hallway, you get claustrophobic. On the ground floor, the kitchen nook is annoying, then you have to ask why heavy leaking sliding doors are planned everywhere.
You can open everything on the ground floor and theoretically see from the stairs into the garden
Wouldn’t it be nice to also have it practical? What is wished for? Privacy or openness? Options are good, but usually not both optimized.
Where would the second sliding door in the living room be?
I think sliding doors are being given magical powers here. They look stylish, yes. But you can overdo it. Practically, I don't consider them useful (I also have one) and they are rather an eye-catcher from which you shouldn’t expect too much. They usually don’t do what a door is supposed to do.
´762m² plot in a residential area, existing building, no slope,
20*38m, garden orientation NNE
No building restrictions (no floor area ratio, etc.)
With these specifications (the rest is unfortunately a bit thin), many things come to mind, but not a compact 3-story house.
Small footprint, but spatial separation into living (ground floor), sleeping (upper floor) and working (basement)
Two persons + possibly child + dog
I find it rather impractical. I am also not a fan of too large a built-up area, but with the right zoning, a size-optimized 2-story house should fit better.
Unfortunately, the site plan and the indication of where the carport should later be located are missing. From where would the property be accessed, and is it intended that patients (practice) should use the outside stairs to the basement?
So there isn't much constructive criticism to give, but a suggestion to change the location of bathrooms and kitchen near the terrace and possibly the orientation of the rooms. Then, considering a dog, think about the stairs and the dog's sleeping place, possibly a shower on the ground floor or wherever you come in with the dog. The basement stairs and entrance area are too fragmented for me, and the bathroom in the basement is too far away.
Keep in mind that every toilet must be vented upwards through the roof.
And yes, if there should be a child, then the children's room should also be proportionally appreciated compared to the other rooms.
Regarding the main question bathroom, quite a bit has already been said. Shower in L-shape, then the toilet behind it, washbasin with a side window, and the washing machine shouldn't exactly be a disturbing factor in the feel-good bathroom either.
