Where you put the door is crucial! A quick sketch gave me one possible option. Locate the washer, dryer and upper cabinet storage in a deep closet with doors at one end of the space, and the tub/shower at the opposite end. Locate the entry door to the space as close to the laundry end as possible to make the bathroom as large as possible. Locate the toilet on one wall next to the tub, and a double vanity across from it. It should still work if it is customary to have a bidet next to the toilet. Good luck!

That is a great idea about the door. I hadn't thought about that. I definitely was going to do bath and laundry on opposite walls, with a cabinet style sink and toilet on the back wall away from the door. I think I may put a slider or something to cover the washer dryer, rather than leave it exposed. Thanks again for your response.