I know it's a bit much, but maybe now understandable.
Maybe you could sketch it out – you can compress the width scale anyway.
As far as I have followed it textually, I find your perspective more factually appropriate. And personally, I wouldn’t be keen on living on a mound. More floor height means, with ground-level exit, also more terrace height; you don’t want a slope there, so basically it will be a full-surface fill.
On the other hand, two things give me pause: on the one hand, that authorities usually issue warnings for liability reasons. And on the other hand, that
and today I lie 60 cm lower than my neighbor. All other properties have been filled. The street has also been renewed and therefore raised.
is not entirely dismissible.
My solution would probably be to keep the planned height and, if the rest of the world gets raised, retrofit gutter channels and a buffer tank.
At some point, enough is enough with the nightmares of what can still happen just before the finalization of a construction project.