Maybe a staggered story would be the solution here, but then the living space on the 1st floor will probably be too small in relation to the ground floor.
With 3 children, you have a high space requirement - I would also plan a "real" 2-story house. I probably didn't read about the 3 children before/didn't remember.
But wouldn't a shed roof also be an option? With a ridge height of 4.70, you reach two stories on almost the entire floor area; a shed roof opening to the garden would be a possibility to build the children's rooms with a loft bed on the second floor. My choice would also be 1434 or 1425. Because: wind mostly comes from the west, so also noise ;)
I always say: you can get a nice house with parking spaces and so on on every orientation. In this respect, I would probably prefer a play street location for you. Otherwise, I also find the whole Bogenstrasse on the right side quite attractive. No plot is bad. And what one lot has, the other may not, but it has other advantages. Unfortunately, such queries often make many unmentioned locations look worse than they are.
Just make sure it’s not too small: you want a big house and garden for children as well as usable space...
Surprisingly - the first house that was completed is a "city villa":)
That is not surprising.