Land and floor plan design with access in the southeast

I think the height restriction could be a problem there.

Then rather build the house right by the street

But well, that is probably a matter of taste.

I do not see the reduction of the straight-wall upper floor to a knee wall 180 DG as creating any problems (except possibly a more expensive roof construction), but also not solving any.

Then rather build the house directly on the street and have a terrace on the northwest.

I just glanced over it briefly and found the floor plan pretty good. What has been pointed out several times: instead of the walled pantry, you could add two tall cabinets for storage in the kitchen. On the hallway side towards the living room, I would consider a nice cabinet that can function as a storage room and takes up less depth for cleaning supplies, possibly a vacuum cleaner, etc. In the master bedroom, the open access at the head of the bed bothers me. I would probably place the access from the dressing room to the bedroom on the west side (even if the way to the bed is then a bit longer) and put the head of the bed against the staircase wall. You would then have a protected room, yet still a view. Just an idea. Best regards

No, not here, because there is a building boundary.

That just doesn't work.