Simple version for under stairs storage. This would totally work if we gutted the basement as it is now. (Plus, no more dark crawling under the stairs to get at my christmas decorations!) This is sorta what dad wants to do here.
basement stair cabinets, stairs with flip up steps and very narrow stairs. Each step goes up one at a time for each foot. It is sort of spaced so you are putting one foot per step with a steeper step. Very space-saving.
Creative ideas for using the space under the stairs. Brilliant use of space! Not nuts about the bathroom idea though. I guess if you had a tiny home with no main floor powder room it could be workable.