Pinned for the idea. Not sure how much I like the extension over the toilet. If were to do, vanity top should be one piece, with no cut line. Also: Consider how much the extra counter space would be needed.
Sunroom almost exactly. either this floor or repeat entryway floor. All metal windows and doors throughout, simple ceiling, chandelier, fireplace punches through from living room. (some thick metal areas around window/door frames)