Shannon Wollack and Brittany Zwickl, of Studio Lifestyle, West Hollywood, handled the interior design for the project. The two-floor structure the designers came up with isn’t just any poolhouse, mind you. “We saw this as a chance to have fun, to think outside the box,” says Wollack. That’s more than just a handy design metaphor: The duo literally extended the “box” of the house by adding features like a 15-foot-long pocket door that brings the outdoors in, a kitchen window that opens to a pool-side bar, and a shower that’s accessible from both the bathroom and the yard.