I can understand the question "does it have to be an urban villa" very well. At the moment, everyone is building some kind of urban villa, and this leads to uniform new housing developments that are more than boring. That's why I find the question justified. I would often wish for a bit more architectural spirit and individuality when I walk through new housing developments. Most houses are interchangeable and, sorry, boring. Personally, I haven't been able to look at these "urban villas" for a long time.
But this is already settled here, if I understand correctly, right? The contract is signed, so it will be a house from a building provider and therefore most likely a standard floor plan with slight personal modifications. Otherwise, the decision between two fixed square meter numbers probably wouldn't have been necessary, because a freely planned house only has to comply with the floor area ratio and the building plan, and there is much more freedom for individual planning and, above all, ideas!
Personally, it pains me when everything is built so standardized and the chance for something truly creative is not used, even though obviously the necessary financial means would be available.
A pity!
A few considerations on the present floor plan from my side:
I occasionally work from home, and currently we do NOT have the study on the same level as the kitchen/living area. I cannot recommend that. At least I like to get a tea/coffee/water/snack now and then, and each time I trudge up and down the stairs. Then the postman comes, I trudge the stairs again, etc. I would therefore use the guest room on the ground floor rather as a multifunctional room. With only 5 overnight guests per year, that shouldn't be a problem. And if my little gray cells don't fail me, there was talk of commercial use as well. Could it be that sometimes customers or other strangers have to go into the study? Then, for me personally, having a study in the private area would be an absolute no-go (just the thought that the partner might be sick and lying in bed while a customer is in the office next door and you have to go through the corridor to the bathroom... nooooo, that simply won't work!).
I agree with you that if you have the space, you should primarily make it available to family members. So, a large children's room is nice. But you really have to ask yourself to what extent it will be used. When we were children, we mainly played in the children's room. Maybe on weekends sometimes in the living room, but the toys were then neatly put back in the children's room in the evening. We were rarely allowed to leave anything in the living room overnight. Our main activity space was the children's room, and our children's rooms were comfortable at 16 sq m for the standards at the time.
But nowadays I increasingly see that most children occupy the living room and most of the toys are there, and the children play mostly there. Now you could start a fundamental discussion about whether that is okay and whether one can't have a room where the adults' concerns (order???) take priority or not, but think about how it is for you.
If the little one will mainly be in the living room, such a huge suite as you are planning here doesn't really make sense. It will be a ballroom where a small child will almost feel lost in the evening when it is dark and she lies alone in the room.
And the little child will eventually become a teenager, then a bigger room is definitely appropriate, but even here, better planning could be done:
How about planning a small living unit for the daughter in the upper floor? Two rooms and a small bathroom in between. Now, as a toddler, she uses one room as a children's room, maybe the second as a playroom if it is not the living room. Or you use this room with the small bathroom next door as a guest room until the daughter needs it. (and as long as this is the case, the office on the ground floor is purely an office and then later becomes the multifunctional room).
Because, and this is another point I throw in for consideration:
The bathroom upstairs is nice, but nothing more. For three people I find it rather tight, especially since not even two sinks are planned. That causes bottlenecks, if not already with a toddler, then certainly with the expected teenager!
So I would clearly plan two areas here: one side parents, one side daughter (with 2 rooms, sleeping - living and a small bathroom). The daughter will not fully use her side currently but will be happy about her own little realm later as a teenager. It might even be worth considering whether to already install connections for a small kitchen unit in the daughter's future living room. I had a friend who had such an area with a small kitchen for herself when her parents built a new house. I thought that was great and was very jealous!
And you get a bathroom-time-intensive teenager out of your bathroom. Believe me, that contributes to your well-being!
I also would not be 100% happy with the dressing room solution because the one who gets up earlier will always disturb the one who can still sleep. Maybe that can also be softened a bit.
Overall, the design is nice but far from innovative.
How about you: Do you have to build quickly, or can you take the time for the planning accordingly? I speak from experience: we actually wanted to start building very quickly and also had a quite good design. Due to some trouble with the building authority and previous architects, everything was delayed a lot, and I am now VERY glad about this delay. We have been working on the project for almost a year now, and that really benefits the design. You collect much more input when you take your time for it, and many inconsistencies only become apparent over time. Therefore: if you have time, take it!
Be open to new suggestions, even things you shake your head at at first. Don't cling to ideas you have now in your head, become free!
I believe that then you will find a better, more individually tailored solution for your situation in the long term. This is still rather "mainstream" with a few modifications. You can do more!