Hello,
you really have a generous plot. Are only the floor area ratio and floor space index fixed, and is the usage based on §34? To me, based on the other information, it first sounded like a plot for multi-family houses. I’m keeping my fingers crossed that you get the lake view; then, in addition to the spacious house, you can talk about luxury! (I would like that too )
Attic:
You surely had a reason for it, but at first glance, the guest room/office including the dressing room seems too large compared to the children’s rooms.
Is the master bathroom actually intended to be used only by the parents? If yes, the criticism point might be worth reconsidering, but: I find the path through the bathroom to the bedroom rather unfortunate. But that might be a matter of taste.
The children’s rooms will probably be quite dark.
What distance was planned for the dressing rooms? Seems quite tight to me.
I find the ground floor very well done – everything else is again a matter of taste.
I wish you much success! =)
Out of curiosity (I hope I didn’t overlook it) how much living space do you have according to the plan?