Real estate billionaire and California shopping mall developer Rick Caruso expanded his two-property waterfront estate in Newport Beach this spring, adding seven bedrooms, nine baths and .37 acres with an $18.6 million next-door residential acquisition, according to Dirt.

The villa sports an exterior with a tile roof and numerous balconies and terraces. The outdoor living area is a gem; the lot’s depth allows enough space for an attached arcade to accompany the pool. The property’s interior living areas measure 8,546 sq. ft., including a fully self-sufficient in-law or staff apartment with a private terrace above the four-bay garage.

The main home features limestone tile floors, wall niches, and exposed beams among its details. The layout incorporates a romantic courtyard with balcony overlooks that opens up the living style beautifully. Other standout spaces include the dining room—with a carved stone fireplace and a custom milled ceiling—and the living room, which is decked out with a striking marble fireplace with a raised hearth, and offers splendid views of the harbor.

The idyllic spot effective converts Caruso’s waterfront retreat into a three-residence compound.

Caruso’s net worth is north of $4 billion, according to Forbes.