1.
There has already been plenty in the floor plan thread...
Without visible resonance.
I would arrange the ensemble star-shaped, especially to loosen up this - in my opinion yawningly boring and unspeakable 26 m (!) house front. Conceptually something like this, but probably too innovative:
Source + recommended search:
Schöner Wohnen - Family bungalow with airy floor plan
As said, the tip is not new...
The original is also not a multi-family house, but a garage as wing 3 would be suitable for transfer according to one's own taste.
2.
P.S.: We also have a room on the south side on the upper floor open to the ridge, with 30° roof pitch. Also without gable glazing (there’s plenty of light with a 3 x 3 m floor-to-ceiling lift-and-slide door) from three window sides and at night illuminated well inside (only) with wall spotlights (MAWA Design Oval Office 4).
But have you ever thought about the revision of the settlement cracks in the open gable in the wall-roof slope area with drywall cladding at 5m+ height? - with us the first cracks appeared after about 2-3 weeks... (which apparently seems normal). The general contractor kindly refers to maintenance joints...
Anyway, sooner or later an optical problem lurks there, which can certainly be solved technically. However, it is not standard.