Lynsi Snyder, who this year took control of the In-N-Out Burger company, has listed her compound in Southern California for sale for nearly $20 million. Snyder had resided at the property for about five years when she decided to sell, listing it for $19.8 million. She owns 97% of the In-N-Out corporation.

The Mediterranean-inflected behemoth measures 19,000 square feet, and dates to 2010. Its exterior rambles in a wing design across two floors of living space. The home is fronted with a formal motor court centered by a fountain and plantings.

The interiors of the main house begin with a wildly grandiose foyer: sweeping double staircase with wrought-iron balusters and second-story gallery, double-height ceiling, massive chandelier, and floors of marble tile. The living room presents an equally heady sense of scale, as well as a limestone fireplace and narrow-plank hardwood floors. The salon is a classic addition for an interior architecture obsessed with form, and offers another limestone fireplace, and inlaid plank floors. The kitchen and dayroom is open-concept, with a door opening to a terrace and outdoor dining area.

Tones throughout the main house are warm, with beiges and a fair amount of latent yellow giving the spaces an optimistic but somewhat moody feel. The guest house is far more liberated from the constraints of form, and presents a come-what-may interior mix of tile, pine, brick, and warm and cool tones; it measures 2,500 square feet, and is designed in a V-shape which cradles a private pool.

The property’s main pool is a big one—as expected—and is beach-entry. The property’s 4.2 acres also includes a pool house, a batting cage, tennis and basketball courts, putting green, and—somewhere—a sauna.

Snyder has been president of In-N-Out Burger since 2010. The burger queen’s net worth is about $1.3 billion.

Guest house: