The second and third floor's dining area, kitchen and bedrooms can be uncomfortable for older adults to reach. (To be fair, it was designed for young families.) Groceries had to be carried upstairs. A dumbwaiter, laundry and garbage chutes would help. The needed space might be had by using circular stairs. A redesign for older adults might "unscrew" the floors, putting one apartment on each floor, rotated for privacy, reclaiming the stairwell-area for bathrooms or bedrooms, yet using the same land. This loses much privacy, natural light and the dramatic twelve-foot ceiling of the great room.
