tiny toilet and basin combo... with no link. Curse you, Pinterest uploads!
bathroom under the stairs More
4121583_malenkiytualet17 (467x700, 73Kb)
Resultado de imagen para baño bajo la escalera decoracion
Small under stairs powder room. Recycled barn wood on the walls. Mirror made from same recycled barn wood. Metallic paint on textured walls.
Under stairway bathroom. Great solution if you need a seconds bathroom and don't have the room...
understairs toilet - Google Search