To be on the safe side, you can use plain concrete L-blocks to support the carport and then fill them with soil. A few centimeters will still stick out at the top, which you can simply "plant over." You want to create a path/stairway from the carport to the property anyway, right? That will run along the slope. Our situation is quite comparable, only our carport is not directly at the house, but on the left side in the picture (you can only see the orange drainage pipe... the carport is still missing). The house is on the right, and the three steps on the right lead to the ground floor balcony. [ATTACH alt="Treppe West.jpg" type="full"]63605[/ATTACH] Our paved area in front of the house (basically in the middle of the picture) has about an 8% slope, which is completely uncritical. 6% is considered barrier-free in public facilities – so the values you mentioned are absolutely harmless and can be made level. Only at the house connection do you need to be careful with the intended timber frame construction. You probably won't be able to pave directly against the wall. We used a drainage channel from Brink (SystemAir) there. By the way: how do you get from the ground floor to the garden? Through the currently unused basement? Or is there supposed to be an outer staircase? One more subjective note: I consider direct access from the carport to the pantry unnecessary. In my opinion, this can be omitted entirely—especially if it stands in the way of a better solution for the carport/neighbor’s garage (e.g., because you have different levels there). If you have any questions, ask.