West Lake Hills and Tarrytown are the closest Austin gets to a private-club residential neighborhood. The roads curve through hills. Lots are a half-acre and up. Driveways are long. The houses sit back from the road, often gated, and most driveways contain both a car and a golf cart, the latter used for the drive to Barton Creek Country Club or the tennis courts at Westlake High. The streets do not have sidewalks. Almost no one walks.
The demographic is tech and law, mostly late forties and fifties, mostly second-marriage. Kids are at Westlake High or Hill Country Middle or already out of the house. Weekday daytime population is thin because almost everyone is on Mopac heading somewhere else. The cars in the driveways are Range Rovers, Tesla Model Xs, and the occasional Porsche Cayenne. The second-driveway vehicle is almost always a golf cart.
The explicit trade most residents describe is tuition. A couple moving from Newton, MA or Palo Alto, CA who were writing $60,000 to $80,000 a year in private-school checks arrive here and discover that Eanes ISD is a top-ten Texas public school district and the checks go away. What replaces them is a $1.1M to $2.8M mortgage and a 1.99 percent property-tax bill. For a two-kid household over thirteen years, the math is close to break-even against the East Coast private alternative. For three kids it is cheaper. For one kid it usually does not work.