Discussions about floor plans are personally uninteresting to me (loosely based on Jürgen Becker). But because I participated in the two previous threads from the OP, I clicked on the last post here – and then I just can’t stay silent.
After 30 hours of pure drafting work without finding a satisfactory solution, we had to admit
... cobbler, stick to your last.
that the building window is not wide enough
So if this building window is not wide enough for a single-family house, then no building window is wide enough for you.
And that was then one compromise too many.
To speak of many compromises with this plot and this development plan is an insult to many builders.
Not much time passed between “Hurrah, finally a plot” and “fuck off, let’s buy it for our son and keep looking”.
Maybe a lot more time needs to pass before the builder is ready to build.