Misplanning Bavaria - slope towards house and garage - instead of away

Our architect planned a slope towards the house and the garage instead of away from them. Unfortunately, as laypeople, we did not notice this and the plan was now approved as is. Now we have a slope of 33 cm! According to the building authority, we are currently in a correction procedure if we want to change this - of course we want to! To prevent water from flowing onto the property, the house's floor slab would need to be 6 cm higher above street level, and the garage's floor slab 2 cm higher above street level. According to the building authority, we could raise the elevation by 10 cm without further problems, but then I would still have a slope of 23 cm. Do you have any ideas or have you had a similar case?

Asks if you can just lift it by 50 cm... (?)

Asks if you can just lift it by 50 cm... (?)

We are allowed max. 10 cm. More than that = Tekturverfahren

Oh, without knowing what that means, if I were you, I would ask your architect what his idea for a solution is. What does the procedure cost? Over what length would it be 23 cm towards the house?

Oh, without knowing what that means, I would ask your architect what his idea for a solution is in your position. How much does the procedure cost? Over what length would the 23 cm extend towards the house?

= Modification of approved plans.

But you will have no other choice.

Be glad that it has already been noticed now. We had the same thing in the neighborhood but it was only noticed after the screed was in... Your architect has to cover all the costs, after all, he planned incorrectly.