New construction 166 sqm / 1.5 floors / floor plan for a family of 5

That won't work like that.
Your wall stub between the shower and toilet is about 60cm. Your drawn toilet is therefore about 42x28cm...!!
Our bowl is about 57x40cm plus an additional 14cm in length for the pre-wall... that will also be added in your case. If you draw that to scale, you won’t properly fit into the shower nor in front of the sink.

Your "cabinet" to the left of the sink is 27cm deep and 55cm wide... you can see that yourself.
You will run into the towel holder every morning.
Again: cut back on the technology!

OK, convinced, I can see that myself.
In any case, we will work on it and maybe come up with something along those lines together with the architect...

At the moment, I lack an overview of how much space will be missing from the HW afterward or whether, for example, the controlled residential ventilation and/or heat pump can/may be installed in the "niche" behind it...

Thanks anyway.

Oh dear

No!

So: I spoke of countering. That means roughly mirroring. There is then no hose or longer paths if you see the garden more from the side.

Oh dear, you are right
I misunderstood the "countering"

As I see it—correct me if I’m wrong—the slope is to the east, so the property is more bad than good there. That’s why you want the terrace in the south, and to the west is then the street and driveway?!

Yes, unfortunately I have to correct that, because the slope actually only starts from the red-marked area (see attachment). Before that, in the green-marked area, a normal garden area will be usable.

(It would of course be best if you sketch that out for yourself, also for the community here. We always have to rotate your design and remember where south and north are.) Edit: thanks,
Be that as it may: you argue with the sunrise that hardly anyone can enjoy because at that time hardly anyone is there anyway. Instead, the sunset is ignored, from which every family member would benefit because in the evening the family is at home, preferably sitting in the garden.
Then someone could look into your living room. I still don’t see that.
Now rather someone could look onto the unmade bed...
In case you misunderstand me: here:
[ATTACH alt="HausGrund.JPG"]50955[/ATTACH]
There can be a nice hedge or planting towards the street and you have a great garden with a great house orientation.

Thanks for the additional drawing for better visualization! I surely wouldn’t have managed that right away

I understand your argument regarding the cardinal directions, but I still struggle in connection with the mentioned concerns and disadvantages.
Especially since on the south side we will hardly have any/little space (about 4 m), if the planning with the garage on the north side stays....

For that, we would leave the bigger garden side in the east almost completely "unused"

However, I would probably now also counter the hallway... one has to see what the upper floor looks like.

In that case, it wouldn’t fit with the entrance to the utility room, right?

So in the end you mean that no garage should be built?

Correct. A garage like Nordlys is for workbench, Pirelli calendar, drinks and in my opinion you should also put the lawnmower in there. That doesn’t require a normal garage length, less space is needed. I see two cars comfortably parked in front of the bedroom on the street.

Yes, I unfortunately have to correct, because the slope actually only starts from the red-marked area (see attachment). Before that, in the green-marked area, a normal garden area will be usable.

The elevations say otherwise.

Right. A garage like Nordlys is for a workbench, Pirelli calendar, drinks, and in my opinion, you should also put the lawnmower in there. It doesn’t need a normal garage length; less is fine. I can easily see two cars parked in front of the bedroom on the street.

Unfortunately, front gardens may not be used in this way, see municipal regulation:
"The front gardens are to be predominantly planted with native shrubs, local woody plants, or small trees. Excessive sealing should be avoided – except for the paths and driveways to garages, carports, and parking spaces. The proportion of gravel, crushed stone, and comparable materials is limited to a maximum of 15% in the area of the front garden.

The heights say otherwise.

According to the regulations, the embankment is to be maintained up to a height of 1 m. So approximately at the marked property boundary. At least I hope we haven’t misunderstood anything here.

Unfortunately, the front gardens are not allowed to be used like this, see municipal regulation: "The front gardens are predominantly to be planted with native shrubs, local woody plants, or small trees. Excessive sealing should be avoided – except for the access paths and driveways to garages, carports, and parking spaces. The proportion of gravel, crushed stone, and comparable materials is limited to a maximum of 15% for the area of the front garden."

So what? - those are parking spaces after all. Nobody intends to create sealing.

So what? - those are parking spaces after all. No one intends to create a sealed surface

No, it’s not that simple. If no development, even if only parking spaces, is desired, alternatives should be created.

For that, we would leave the larger garden side almost entirely "unused" at Easter

Why unused? Just use it as a garden?!
Anyway: fortunately, it’s your decision