A shower enclosure in a bathroom
This shower was fitted in an existing bathroom in a rented house. This shower uses a bar-type thermostatic mixer valve like the one pictured (right, from another installation). These are reasonably priced and widely available from different manufacturers, but fit onto standard-sized and -spaced connections so that if in future the valve fails and cannot be repaired, it can easily and cheaply be replaced.
The tray is laid at the floor level, which entailed excavating the concrete floor to accomodate the waste pipe. I generally try to lay shower trays at floor level rather than raising them on a plinth.