Nestled on a quiet cul-de-sac in the highly sought-after Windsor Estates neighborhood of Olivenhain, this beautifully updated home offers a rare combination of privacy, space, and resort-style living on an expansive and highly usable 0.57-acre lot. Spanning approximately 4,116 square feet, the residence features 4 bedrooms, a spacious library/office, 3 bathrooms, and a thoughtfully designed floor plan that balances elegant entertaining spaces with comfortable everyday living. The formal living room welcomes you with high ceilings, abundant natural light, and a fireplace with an intricate mantle, while the adjacent dining room opens through French doors to a backyard patio. At the heart of the home, the remodeled kitchen features a large center island with wraparound seating, custom cabinetry, quartzite countertops, double ovens, a 6-burner gas cooktop, Sub-Zero refrigerator, prep sink, and breakfast nook with bay windows overlooking the pool and grounds. Just beyond, the family room offers a comfortable retreat with its own fireplace. A main-level bedroom and full bath provide flexibility for guests or multigenerational living, while a spacious laundry room and 3-car garage complete the first floor. Upstairs, the spacious primary suite enjoys a private balcony overlooking the backyard, along with a fireplace and spa-inspired bath featuring a jetted tub, oversized shower, dual vanities, additional seated vanity, and walk-in closet. A stunning built-in library and office offers exceptional versatility as a home office, library, media room, playroom, or potential fifth bedroom. The backyard is the true centerpiece of the property, offering a rare amount of flat, usable land with endless possibilities. Enjoy a solar-heated pool and spa, covered outdoor kitchen and BBQ, custom fireplace, expansive lawn, mature landscaping, and tropical palms. With no neighbor directly behind and ample room for an ADU, sport court, or additional amenities, the grounds provide a remarkable sense of openness, privacy, and opportunity. Additional highlights include a large laundry room, 3-car garage, updated landscaping, and close proximity to top-rated schools, beaches, shopping, dining, and all that coastal North County has to offer.