Gustav Stickley was mostly known for his furniture design with a lot of basic and cleanly designed pieces.  However, in the latter part of his career he established “The Craftsman Magazine” where he designed floor plans for craftsman houses.  This is one of the floor plans featured in his magazine which featured craftsman styling with a lot of windows and a roof tall enough to allow for full height rooms on the second floor.  It seems that the floor plan of this house is based around letting a lot of light in and giving you as must square footage as possible.