Single-family house approx. 150 sqm floor plan - How to plan the staircase?

Kniestock: I would aim for around 150 with a 30 degree roof pitch or so. In your example, one of them wouldn’t make it into the bed without bumping their head.

Lunch break sketch...

I think it is essential to mirror the staircase so that the hallway on the ground floor can also accommodate the doors as such and the room at the top right of the upper floor can be properly used as a bedroom.

Ah, yes, very good ideas. I would also consider mirroring the staircase to be advantageous. However, we would probably lose the slanted double door then. Basically, I am not a fan of slanted walls. If this slant is removed here, the open-plan room changes its character significantly, I think. Or the kitchen becomes smaller - hmm, one has to weigh the options.

Unfortunately, mirroring the staircase will not be possible, we are very limited in the positioning of the carport due to the building window and would take something from the SW garden with any other design. If I now mirror the staircase, the entrance would shift under the carport.

What does the mirrored staircase have to do with the carport?