We are now leaning towards 5-5.5 m inwards, then there are still 7 m to the neighbor on the north side. There I would secure the house with 1.5 m distance using L stones and plan spritz plaster and planting on the house. The plot below will be raised to 204.6, as would be feasible for the foundation of the carport for example, then everything is level and there is a 90 cm wall at the back. That is okay. The entire plot on the west side will then be divided into two plateaus. Once the northwest at the mentioned 204.6 or slightly rising and at about the height of the terrace then a rise to 205,x m, then there is the second plateau at the top. In the northeast, behind the garage/carport there could be a large shed for everything else towards the border in the east. What do you think? I think that sounds good. Would you place the house flush with the carport? Or have a 1.5 m overhang so that it is flush with the L stones.. I'll make a drawing... The east boundary can be raised, it is planned as southeast anyway (the neighbor already has a wall there, he has already raised it), but it does not go along the entire stretch due to the slope.
Sounds like a plan :) Better take 5.5 m. Even that is already tight, because you don’t want to touch the plaster with the bumper every time. I would move the carport as far south as possible. Neither the neighbor nor you benefit if you move the carport further north. If the neighbor can look over it, it's okay for him, and he also has a clear view (and winter sun) towards the southwest. You can use your northeast corner well for additional storage, compost/leaf pile, shady summer spot, or similar. I would try to keep that as free as possible. In short, I would orient myself by the heights, front door or so, and stay as far forward as possible. Basically, we are back to the original plan, and with this arrangement, you can actually go back to 8+ m (i.e. carport including storage room). What I still don’t understand is how to handle the different levels of entrance & carport then.
I can imagine the different levels on the plot. You have to do something because of the slope anyway. Whether you separate it strictly architecturally with L stones or something more organic is a matter of taste. The levels don’t have to be perfectly flat. With 20-30 cm slope on each level, you almost eliminate the offset anyway. As far as the foundation is concerned, you have to (if not done yet) get a soil report anyway. In our case, for example, the result was that we had to have a flat plateau at least 2.6 m wide on the valley side of the house for the required load transfer.
Regarding the east boundary: of course you can raise the entire length. You just have to step down following the terrain towards the north.