I'm glad when architects are on the same wavelength as my stone mantra :)
Regarding "all interior walls built of masonry," I explain in the post "Lightweight walls in solid houses?" when that can be wise.
Yes, please.
Ah, read it right away. Thanks. The cheaper general contractor actually planned it that way, and I was already wondering. (So lightweight walls in the attic).
Randomly selected examples:
Stone exterior wall as aerated concrete block or perforated brick (depending on what the general contractor uses)
Interior walls on ground floor/upper floor built of masonry according to statics; chosen stone like exterior wall
Windows made of thermally insulated profiles from the brands Schüco, Salamander, or equivalent
Number of interior doors according to submitted plans; quality according to building description
Sill detail for floor-to-ceiling windows (transition from window profile to terrace)