: They want it as a retirement home, so the resale value doesn’t matter, right?
What does that have to do with anything? In old age, when care has to be paid for, the house has to be sold under the hammer. I don’t see a unit here to bring in a caregiver anyway. But that should not matter: at that age, you don’t have to worry about old age, what happens at 70+. However, with money that apparently exists, one can build one thing or another that will be practical in old age, even if it’s not yet targeted now. And I don’t mean a lift or a shower handle, but clearly more comfort, like wider doors or a bedroom on the ground floor.
As already mentioned, it has to be a gable roof, and the ridge direction is also predetermined.
But that does not at all mean that you have to decide against any harmonious building shape just because you like it modern.
The living room is angled like that to face somewhat west.
And what do you get out of that? It will be bright enough through the windows, but in winter the sun will not reach this room.
We haven’t had a bathtub for 10 years now and haven’t missed it either. Age-appropriate, we rather see the walk-in shower.
Don’t forget: You’re not building for the last 10 years, but for the next 30! Both belong in there.
We don’t see the bathroom as a walk-through room.
Neither do I, actually. But before I circle the air space, I’d rather go through the bathroom. And then it would be a walk-through room. I also wouldn’t access the utility room from the bathroom, because it can be very disturbing in the bathroom when the washing machine is running.
The rather long way to the bedroom via the gallery results from the rotated staircase.
Oh, I didn’t even see that
It’s your house, you have to decide. I find it not negotiable both visually and in the floor plan. If it were my plot, and the garage has to be in the east, then two stories with a gable roof, and the wish for modernity, then I would a) try to get lots of window area facing south and west in the floor plan b) because of age, a lot of space on the ground floor c) combine flat roof with gable roof or go into the staggered shed roof section.
Since some of that conflicts (two stories with age, b) and you’re planning a staircase anyway, I would see down below a cuboid (crosswise) with utility rooms as well as office plus guest including bathroom, kitchenette, entrance east, and above a crossbar for living and sleeping. Crosswise, so that the lower cuboid is about half flat roof, possibly set on slant so that the angle still creates tension, and the crossbar finally gets the gable roof. You can even make the lower cuboid longer so that the garage is accommodated on the right side there. I need to check if I can find something similar on the web.