Welcome to 3548 Rosa Way! A gated Spanish-style estate nestled on 1.5 acres in the scenic hills of Fallbrook. This single-level residence offers 3 bedrooms, 2.5 bathrooms, and nearly 3,900 sq. ft. of refined living space in the main home, along with two additional detached structures that provide exceptional versatility for today's lifestyle needs.The property includes a fully equipped 1 bed, 1 bath guest house ideal for multigenerational living or short-term rental income as well as a separate structure perfect for use as an artist studio, gym, home office, or a second 2-car garage.Enjoy a seamless indoor-outdoor experience with lush, mature landscaping, an expansive courtyard, multiple patios, organic garden beds, and a west-facing stone fire pit. Additional highlights include 3 wood-burning fireplaces, 24 fully paid solar panels, a wine storage space, and a circular driveway with parking for 10+ vehicles.Located just half a mile from the I-15 freeway and minutes to Fallbrook Airpark, Temecula Wine Country, Monserate Winery, and Oceanside beaches this home offers a rare blend of privacy, accessibility, and timeless charm.A unique opportunity to own an estate that offers space, flexibility, and quiet luxury in one of Southern California's most desirable communities.