Which areas in the bathroom are tiled?

I would take the wall tiles in the same width as the floor tiles, otherwise the joints do not run continuously from floor to wall but are always staggered. We have a very similar layout and fully tiled the shower, meaning on all 4 sides. With our 180 cm length, the back wall still gets wet anyway. We tiled the sink wall up to the ceiling with a cutout for a mirror. For the toilet, only the back wall up to the height of the pre-wall construction.

Very stylish.
Does the window face an inner courtyard?

Looks very nice!

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Very nice! Can you tell me the manufacturer and model of the base cabinet under the sink? The wooden board looks great.

Ah, that was the house with the airspace and the glass pane. Awesome!