Step 3 - Draw pencil outlines on the Wall

Mark where the new fixtures should go by outlining them on the wall.  Decide where you would like the new light fittings to go and outline these as well.  It is best to have all the new items on site at this time. A full scale plan of the new layout drawn on the wall will give you a good visual of how things will fit in and save you a lot of problems when you find out that you are a few inches out with a light fitting or a fixture, and it doesn't fit.  Center the light fittings between the mirror and the tile border.

Another time saving tip is to dry fit the drain parts in order to know exactly where to position the new cabinet.  Bathroom cabinets from Home Depot or Lowe's Cabinet include custom made drain assembly fixtures that need to be centered exactly on the existing drain parts.  Traditional cabinets are more flexible.
Plan the tile layout by laying a row of tiles on the floor to determine the exact height and width of the area to be tiled, and mark this on the wall as well.  

Double check your layout to ensure that everything is correct, then prepare for the wiring.

Step 3A Wiring for the new sconces

To re-route electrical lines, cut a hole in the wall large enough to mount the new junction box and drill holes for the wiring.  The hole will be covered by the mirror so there is not need to patch it.

Once again, because each bathroom is different, there may be a few challenges:

-    If you already have sconces but need to relocate them to fit into the new layout, keep in mind the requirements of the National Electrical Code that every electrical box has to be accessible.  This means that you cannot cover wires in a junction box with drywall or a fixed mirror.  

-    You can, however, place the junction box behind a mirror which is not permanently attached.  This allows you a certain amount of flexibility when the old wires don't reach the new location, as you can extend the wires and add a junction box.

In our case, it was a straightforward job of connecting a single cable from the switch to the original light fitting.  We nailed the new junction box to the stud and ran the old wires into the box.  New holes were cut for the new remodeling boxes and holes drilled through the studs for the new cable to be run from the junction box to each light fixture location. Re-modelling boxes simplify the exact placement of the boxes and avoids extra patching.

All that needs to be done now is to clean up and discard the old materials, and you have a remodeled bathroom that looks brand new.