Morgan Plan No. 17 -- one of many plans both large and small in Building With Assurance, 1921 > With two floors or more, all I can say is "Elevator" to make it easy for me to get to the other floors and more bathrooms is always a positive addition.
The Oracle Next Gen - The Home Within a Home floor plan has 3 bedrooms and 2 bathrooms, plus an additional bedroom and bathroom (AND a living space and kitchenette!) in the Next Gen suite! Move the single garage to alongside the existing garage?
Floor plan LHS. Change it into a 6 bedroom and it's perfect
change the matter dressing room and butlers pantry to Minot bedrooms = 6 bedrooms. Mainvue homes which combine Australian and Japanese architecture. We've been looking for a rambler layout, and here it is!