I would do a glass splash back [ this can be painted in your color choice to suit the decor ] - taking from the bench top up to the bottom of the range-hood on the wall of the stove. The window is beautiful and I would give anything to have them in my kitchen. I would probably paint OR stain and apply marine grade vanish to the would so that any moisture would not be able to ruin the wood. I would also put herbs or flowers there. Could it be made into a servery for outside maybe ???

Couple of pics would help. As for " keep the smaller window, frost it and have the builder remove the inside trim then completely drywall over the window keeping the look of the window outside but losing it inside? Will it look half ass and dickie?" Yes.

What did you end up doing? I'm very curious.

We're tiling our toilet room, which is only the width of the toilet with a small amount of space each side. I want tiles for hygienic reasons but am unsure whether to tile all the way to the ceiling on all 4 walls or only part way up...any opinions on what is 'on trend'? The bathroom in the adjacent room is tiled to the ceiling.