Good morning Maria,
correct, the bathroom as drawn is not wheelchair accessible. I would also prefer it to be a bit larger, but with a sensible arrangement it will certainly be very usable in daily life. One possible arrangement would be: rotate the bathtub and push it against the wall at the top of the plan. The sink would then be at the bottom left of the plan. This would leave plenty of space next to the toilet. The shower will be larger (1.5m x 1.5m) and tiled flush with the floor. In front of the bathtub you can then also use the shower space, for example for repositioning using a mobile lift. A proper care bathtub is incredibly expensive. Therefore, it will be an under-ridable tub. If the tub is accessible from both a short and a long side, it should be possible to wash well. For such a large bathroom to accommodate a freestanding tub we overall lack the space. The floor area of the house is already very large. But maybe the bathroom will still be bigger.
I would rather not make the children’s room smaller. A care bed (with safety rails) will be installed. These always look quite bulky. In addition, the mobile lift will be kept there in daily life. A standing frame and therapy chair also need space. A large mat for lying on the floor should go either in the children’s room or the living room. Or maybe in both?
Perhaps 1.40m in front of the stairs will be enough. However, the flatter the stairs, the more space the lift needs to come down to the floor while maintaining the same slope. At the bottom are the platform and the ramps all around, so that you can drive onto the lift on the one hand. During the ride the ramps are then folded up and serve as protection so that you cannot roll off. A door in that area won’t work. You could only pass through if the lift is currently on the upper floor.
I don’t think the access to the technical/utility room under the stairs will work because, in my opinion, the stairs are drawn too short. To be able to put a built-in closet next to the garage as in Yvonne’s suggestion, the stairs would also have to extend as far as possible toward the bathroom. Then the clearance height under the stairs to the technical room would probably be too low, right? Does anyone know? Unfortunately, I have no idea about stairs but I thought it would be at least 4m long. It would of course be super practical not to have a door in the entrance area’s vestibule.
The advantage of moving both the front door and the vestibule door by the same amount is that you wouldn’t have to make a zigzag course. By the way, I’m considering a recessed dirt mat in the floor in the entrance area.
The idea behind the two-liner here is that the passage between the dining table and the kitchen should be wide enough to serve as access to the terrace with the wheelchair. When my daughter is parked at the short side of the peninsula, I believe she will be fully involved in what’s going on. A U-shaped kitchen would not work well with this floor plan. For independent kitchen use it wouldn’t be suitable, but it is to be expected that she will never be able to cook or prepare food herself.