Then go to the building authority with the sketch. They will then say what is allowed and what is not.
To assess this, the actual ground heights at the boundary should be drawn in as well as the target heights.
Therefore, I asked for the site plan from the building application. It is not entirely clear to me why the house has to be 1 m higher.
Could it be that you just want to accommodate the excavation? That is not an argument.
I do not see any area in the sketch that could not be managed with a slope.
The elevation shows a target height of +0.52 m. Did you set the terrace higher?