Cool superstructure idea!
Bench, shelf and hooks. Would be good for our foyer. Consider making bench with pull out drawers, or leave as a flip top, to encourage a clear/clean lid. Hooks encourage guests to use it more, modern generation is uncomfortable with coat closet.
Similar entry situation to our own, however there down-stairs are before their up-stairs...
Bi-folds into a bathroom...nice.
This is our master bath. For sure.
Love the bathroom in general. But the black running bond tile would be great in the 1/2 bath as the floor.