I actually can’t believe she thinks putting shelves up makes it a walk in wardrobe! It really doesn’t
she really would need written permission from the landlord to make the holes in the walls generally it’s ok as long as make it back to as it was when you leave if agreed but who knows if she got the permissionI am surprised that she’s allowed to do that in a rented building when I lived in a rented flat you weren’t allowed to do anything that damaged the walls and you certainly wouldn’t have been allowed to vinyl the cupboards