New building with approximately 350 sqm of living space

Ok, so a children's room facing east (mostly dark) I don't find so fortunate. Instead, bedroom and dressing room in the warm south. I would swap the orientation there. Site plan, therefore, for example, to be able to understand how you align the house on the property.

I find the hallway downstairs and upstairs quite narrow.

Why do you actually have a large bathroom on the ground floor?

because a guest WC is only for guests. I want my own bathroom. Habit.

So I also only see a hodgepodge of rooms arranged more or less arbitrarily "just so it fits." Please listen to the many years of experience and the collective knowledge that has developed here over the years and get an architect who can turn your wishes into a solid floor plan.

Where do you even start. Cool house with skatepark. I assume the street is to the north. Are you allowed to build like this according to the development plan? Why this shady terrace The best proof that size isn’t everything. With 350 sqm you expect a wow effect. Here the cramped skatepark. Far from spacious villas in glossy magazines. Staircase in the wrong place, courtyard gone, 80s slope and 80s bay window and it could be something. Even with a lot of own effort, the million won’t be far off. Get yourself an architect

1.5m hallway width is enough Yes we are allowed to build like that I prefer to sit in the shade in summer Why staircase in the wrong place? One million definitely not half at most, we’ve already done a project of this size class

because the guest toilet is only for guests. I want my own bathroom. Habit.

I'm not talking about the guest toilet, but about the 16sqm bathroom, without you having overnight guests?

Did I understand correctly that you are installing the terrace that way because you don’t know what will be built around it?

"Around only undeveloped plots" can mean anything – from a new development area (unlikely with 1200 sqm of land, but then you would know the neighbors' building windows quite precisely) to "external area" (more likely, but usually with poor views). Or a lucky strike like with ...

I also only see a jumble of rooms arranged more or less arbitrarily "so that it fits".

Please listen to the many years of experience and the collective consciousness that has developed here over the years and get an architect who can also turn your wishes into a solid floor plan.

So the terrace is arranged that way on purpose.
I prefer to sit in the shade in summer and want to be a bit shielded from the neighbors. The position of the sun etc. doesn't matter to me right now. I don't understand the hype anyway. Designing the house accordingly. Light comes in anyway.

Now please tell me concretely what is bad. On the ground floor I wanted a double garage with access to the house. Large dining/living room and kitchen with dining table. A bathroom and guest toilet. The stairs to the upper floor should be separately separated from the wardrobe and entrance area. On the upper floor I wanted a master area with bathroom and dressing room. An office. 2 children's rooms with bathroom for the children. So what is so bad now?