I'm going to be honest now: The whole thing is an imposition and as a neighbor I would oppose it, if necessary in court. Someone is putting a 4.20 meter wall right in front of my nose, plus a house three meters further at that height, light, air, sun, everything gone, or I do this crap and also sink tens of thousands into embankment and angle support concrete..... instead of centering the plot, down in front, up in back, everyone does that here, the development plan requires it, and it works perfectly. Karsten