Floor plan planning shortly before submitting the building application

I know nothing about a slope. It also makes little sense since there is no drainage.

There definitely has to be a slope, drainage will then be done outside via a [birkorinne] or further slope to the street, but that is not allowed, so a channel must be installed there.

As if some drop of water would want to flow anywhere with the ominous 2%. Certainly not on a rough surface. As long as no one wants to wash the car in the garage, the registered amount of water is anyway not enough to let anything drain away.

Well, when in winter the car is parked in the garage full of snow and with thick blocks of ice in the wheel wells, you definitely get a small flooding. I would definitely recommend a slope and the channel mentioned by Tomtom.

Calculate the necessary slope so that anything flows there at all ... I also don't know what kind of snow quantities are intended to be deposited there. Exceptional events, I would say. By the way, you still have the dirt. The gate must remain slightly open, otherwise nothing will drain there either and freezing is the next problem. The channel directly behind the gate is nonsense anyway. Either the driveway paving is permeable or the entire driveway is drained via a channel at the property boundary. A channel in front of the gate only makes sense if the driveway slope goes towards the garage, and that should really be the exception.

So, the plan (via PM I have a bit more than the excerpts in the threads) says: the garage floor has no slope, the driveway slopes towards the garage, and there is a channel in front of the gate. However, this plan also says that the gates are both (top, bottom, and raw clearance height) the same height. So a snow lake would stand all over - good that we initially left out the passage door.