Well, with about 35x30 it shouldn't be too difficult to plan. After all, a normal laundry basket usually takes up more space and everyone probably has one in the bathroom or bedroom, right?
With us, we have to look carefully where to place it. But it will probably take the following route: Laundry room basement Cloakroom or guest WC ground floor Bathroom 1st floor and then also Bathroom 2nd floor that saves a lot of running around and with 4 or more people in the household quite a bit of laundry accumulates.
What fascinated me about the central vacuum was that you don't need a cleaning closet. But that's not really true, after all you still have a bucket and mop, don't you?