Age-in-place-floor-plan. All 4 bedrooms are suites. Since there is a master suite upstairs, too, the large bedroom suite on the main floor can function as a family room or home office or TV/movie room, etc. Or use it as a main floor master. The top floor separate thermostat could be turned down for energy savings and back up for visitors. (Think holidays.) This suite even has a private deck that can serve as a separate entrance -- wheelchair accessible.