Welcome to 2519 Cornerstone Ln - a beautifully upgraded, completely turnkey single-family home located in an exclusive gated community of fewer than 40 residences. Backing to a quiet interior tract, this exceptional property offers an extra-large backyard with a rare sense of privacy and openness. Filled with natural light, the home features an open and inviting floor plan with a spacious chef's kitchen that flows seamlessly into the family room and living room - perfect for both everyday living and entertaining. All four bedrooms are conveniently located upstairs and offer generous sizes, abundant windows, and plenty of natural light. The backyard is truly an entertainer's dream, complete with a built-in private spa/hot tub, built-in BBQ, fire pit, extensive hardscape, and ample space for gatherings with family and friends. A charming front porch adds even more curb appeal and character. Ideally located near shopping, dining, and freeway access, this home is also zoned for highly regarded schools including Adams Elementary, Tewinkle Middle School, and Estancia High School/Early College High School - recently recognized as one of Orange County's top high schools. Orange Coast College and Vanguard University are also nearby. Plus, Costa Mesa Country Club and Mesa Verde Country Club are located nearby. Don't miss this incredible opportunity to own a private, upgraded home in one of the area's most desirable gated communities!