The Autocad render of the bathroom, only partial to get some perspective of how the millwork will fit.  Details:  The "glass" like thing is supposed be the window, the framed member in the middle of the room is the outermost showerwall, and behind it is the showerbed.  The shelves above the toilet and window trim is still to be determined.  Theres quite a few of challenges:

1.  The bathroom is only 70 sq ft

2.  There's a Window right in the middle of the wall, next to the vanity cabinet as shown in the rendering

So to achieve a bathroom that can allow ergonomic usage and beauty at the same time, full custom millwork was a must.  The bathroom in 1920 originally used a cast iron clawfoot tub right in front of the window.  Of course, because of the lack of waterproofing it caused much dryrot in the substrate.  This time, I made sure I used a liquid membrane to waterproof the whole floor, and the built up shower used a PVC membrane to hold the water.  To achieve the amount of storage to serve up to 4 people, the cabinets and shelving must be custom and built upward as high as possible to the 9 foot ceilings. 

Here are some pics of the real thing:

 Corner where the main vanity goes.

 Corner where the toilet goes

 Eye level picture of the toilet corner

 Eye level picture of the Main Vanity corner

 Shower Wall

 Shower

 Shower Pan

 Above Door Frame.  CHALLENGE:  Transitioning tiled wall to jamb.

 Top of shower wall