Boundary: First backfilling, later garage = New building permit?

Hello everyone,

building law question:

At the border of our slight sloping plot, we have filled up to street level, as our neighbor has as well. For this, we needed a building permit because the fill at the border exceeds the original ground level by more than 1m.

We plan to place a prefabricated garage on this fill in the foreseeable future (2-3 years); the neighbor has already built a garage on his filled border side.

Question: Do we need a new building permit for our garage on our fill since the original ground level will be exceeded again, or is this possible without a permit within the framework of border construction because the existing fill represents the "new reference level"?

Assumption: The dimensions of our garage comply with the border construction guidelines.

Hope this is understandable. ;)

Best regards
Thomas

If the embankment has been constructed as approved, it now represents the original ground level from which the relevant 3m wall height for the setback areas is measured. Since a garage in Hesse is indeed exempt from approval, but its construction must be notified to the municipality by submitting the building documents, you are on the safe side. If the municipality sees it differently, it can require an approval process.