Our washer and dryer are currently next to the garage, where ideally a mudroom would be. It's a SMALL space, literally the machines and space to bend over in front of them and that's it. It's where we go in and out of the house so it's there's always shoes on the ground and jackets on top of machines.
Would you move the units upstairs to a closet in the playroom (there is another closet in that room) or get a stackable unit to keep it on the first floor (where we spend most of our time, also great for throwing really dirty stuff in before we get inside the house) and have a small space to put coats and shoes.