Interior play spaces make ordinary rooms more fun, they can also do wonders for organization by incorporating storage and “clutter reducing” systems into the design.
Rooms with high or cathedral ceilings have huge potential; a mini loft can be created for storage, sleep, play, puppet shows, you name it.
Creativity and fun with design are the name of the game. Think ahead and plan for the future, and make allowances for the space to grow with the child.