Looking for water heater placement advice

[Matthew McBride]

Hi all.  I'm currently in the process of moving a water heater from the kitchen the hall bathroom in my property.  I'm also changing from a tank water heater to tank-less.  Does anyone have any advice about how best to position and design around it.  The washer and dryer are already located in the bathroom so it feels like there is a lot going on.  Attached are some pictures of the area so you can get a better idea.  Thanks for the help!