Potomac Falls
Each of the 262 homes in Potomac Falls sits on a two- to four-acre lot, and the neighborhood’s western border is the C&O National Park. Add long driveways and man-made “lakes” between some properties, and residents of this neighborhood off Falls Road in Potomac need only see their neighbors when they want to. Of course, it’ll cost you to join them: Property values average $2 million.