This customer has a lovely house that had a bathroom that was falling apart.  The floors where far out of level, the walls were far out of plumb, the tile was cracking due to this, and the shower leaked badly.  Also, while you have to hand it to the tile setters that did the work 80 years ago for a job well done, it was “vintage” in a way that was, unfortunately, pretty unappealing.  Literally every surface was tiled, including the ceiling.  The way they used to do this was affix  something to the studs, often wood lathe, in this case ancient drywall, staple chicken wire to that substrate, and then screed cement over it for a flat surface upon which to adhere the tile.  This is a great way to get a nice flat surface, which is the most fundamental part of a good tile job.  It’s also super heavy and super unpleasant to demo.  The plan was to tear everything out, level the floor, plumb the walls, move the shower to where the toilet was and vice versa, replace the window, do hex tiles on the floor and subway tiles in the shower and about waist high around the rest of the room (this would change to full height by the end).