Floor plans designed with the master suite on the main level are both convenient and a good long-term investment, since they make aging in place easier. With the master suite downstairs, it's easier to get around, especially after kids. Another advantage of placing the master on the main is the possibility of reducing energy use. Empty nesters who have the house to themselves on a day-to-day basis may choose to only heat or cool the main level so extraneous energy is not wasted in unused portions of the house. Many contemporary and modern plans are designed with the master suite on the main level. If built on a sloping lot, there might be a lower level that is used for entertainment space or additional bedrooms. Alternatively, an upper floor could house the secondary bedrooms and baths. In these scenarios, you may consider an elevator to make getting around easier. And just because the master suite is on the main level doesn't mean you have to give up privacy; choose a plan with a private foyer to buffer the bedroom from public view. Some plans even place the master suite in its own wing for even more privacy.