In case anyone is still reading here: The partial construction over the garage turned out to be (without the neighbors' approval) unauthorized according to the city, so I (1) worked on it myself again, (2) had this design improved by an architect, and (3) the same architect created two variants of his own design. As predicted by the architectural psychologists here before, I prefer the further development of my own design – but I can definitely articulate the reasons (see next post).
For development documentation, here is my approach without any construction over the garage:
[ATTACH alt="V1_EG.jpg"]83744[/ATTACH]
[ATTACH alt="V1_OG.jpg"]83745[/ATTACH]
Now the design improved by the architect (yes, a "real" self-employed graduate), albeit further "improved" (possibly worsened?) by implementing change requests:
[ATTACH alt="V2_EG.png"]83748[/ATTACH]
[ATTACH alt="V2_OG.png"]83749[/ATTACH]
[ATTACH alt="V2_Ansichten_W.png"]83747[/ATTACH]
[ATTACH alt="V2_Ansichten_O.png"]83746[/ATTACH]
[ATTACH alt="V2_Schnitt.png"]83750[/ATTACH]
What I mostly doubt is the window front in the southwest (left). The architect, in turn, recommended moving the ground-floor toilet next to the guest bathroom to avoid construction and possible repair costs. As with so many questions, I have no clue whether the opinion here in the forum would be more like "Sure, no water pipes under expensive tiles" or "Never a toilet without a window without good reason."