Welcome to the highly sought-after gated community of Rosemont Estates, an exclusive gated enclave of just 18 single-story homes nestled in the heart of Twin Oaks Valley, San Marcos. Each property rests on an acre or more of land, and homes here rarely come to market. In fact, this is the very first time this stunning residence has ever been offered for sale. Designed as the ultimate entertainer's retreat, this home is truly the perfect gathering place. A Saltillo-tiled walkway leads through a charming courtyard with firepit, arched entry, and tiled fountain, reminiscent of the classic La Costa Spa. Custom tilework accents walls, stairs, and architectural details throughout, setting the tone for the home's character and style. Inside, striking 10-foot ceilings, laminate wood floors, and tumbled tile highlight over 3,600 square feet of living space. The formal living room with a grand fireplace and adjacent dining room create an elegant setting for entertaining, while the private owner's wing features a luxurious primary suite with trey ceiling, space for oversized furnishings, and a spa-like bathroom complete with walk-in shower, soaking tub, and dual walk-in closets. The secondary wing offers three generously sized bedrooms, each with remodeled ensuite baths, along with a home office or optional 5th bedroom just off the entry. At the heart of the home, the open-concept design seamlessly connects the gourmet kitchen, featuring a large granite island, Sub-Zero refrigerator, abundant cabinetry, walk-in pantry and bar alcove with wine fridge. Adjacent to the spacious family room, warmed by a stone-faced fireplace and filled with natural light from French doors leading to the backyard. Additional features include a generous laundry room, dual-zone HVAC with new ceiling fans throughout, and a well-organized two-car garage with overhead storage plus a separate one-car garage. The crown jewel of this estate is the resort-style outdoor living space. The recently remodeled saltwater pool and spa serve as a private paradise with solar heating, water slide, jumping rock, waterfall, bridge, grotto, and beach-entry shelf. Multiple palapas shade the BBQ, dining spaces, and lounge areas, while an expansive covered patio invites year-round enjoyment. Beyond the pool, the elevated back portion of the property includes a bocce ball court, six large gardening planters, a basketball court with two regulation sized hoops, and breathtaking views enhanced by refreshing westerly breezes. This exceptional home combines privacy, luxury, and unmatched amenities in one of San Marcos's most desirable communities.