Well, let’s give it the best possible chance at being a room. And say that at the top and bottom of those stairs is a door.
The toilet would need to be at least 15" from the wall to the center line, which let’s also say it is exactly.
The smallest a bathroom can be is 15 sq feet. Stairs don’t count, and it’s probably fine, because stairs have to be 36" wide, and landings need to match that. So that passes. Cielings must be at least 80" and because this is actually a fucking stairwell, and ceiling minimums are measured from the nose of the first stair, they will more than pass.
So sadly, this is arguably a 1/2 bath. Honestly I’ve seen smaller.
However this still violates code. Stairway landings need to have clear space at least as long as the stair is wide. And building permanent structures on landings isn’t allowed inside that space.
Well, let’s give it the best possible chance at being a room. And say that at the top and bottom of those stairs is a door.
The toilet would need to be at least 15" from the wall to the center line, which let’s also say it is exactly.
The smallest a bathroom can be is 15 sq feet. Stairs don’t count, and it’s probably fine, because stairs have to be 36" wide, and landings need to match that. So that passes. Cielings must be at least 80" and because this is actually a fucking stairwell, and ceiling minimums are measured from the nose of the first stair, they will more than pass.
So sadly, this is arguably a 1/2 bath. Honestly I’ve seen smaller.
However this still violates code. Stairway landings need to have clear space at least as long as the stair is wide. And building permanent structures on landings isn’t allowed inside that space.