Located beyond the prestigious 24 hour guard-gated entry of San Marino at Tustin Ranch, this elegant single-level estate presents an exceptional opportunity. With four bedrooms, three full bathrooms, and a guest powder room, the home offers multiple living spaces filled with natural light and refined finishes throughout. A grand walkway leads to the double front doors and opens into a formal living and dining room featuring high ceilings, a cozy fireplace, and an overhead skylight that fills the space with warm sunlight. The spacious great room includes a second fireplace, walls of windows, and a French door that opens to a private backyard with mature landscaping, walkways, and a peaceful fountain. There is ample room for a future pool. The well-appointed kitchen is designed for the gourmet chef, complete with a new six-burner cooktop, brand new double oven and dishwasher, and a built-in Sub-Zero refrigerator. Whether entertaining guests or preparing a quiet meal at home, this kitchen is ready for it all. The primary suite is a true retreat with French doors that open to the backyard, a luxurious soaking tub, separate shower enclosure, and dual walk- in closets with custom built-ins. Two additional bedrooms share a full bathroom with dual vanities and another soaking tub, while the fourth bedroom is a private ensuite with its own full bath. A guest powder room is also conveniently located for visitors. Additional features include a three-car garage offering generous storage and parking, as well as a dedicated laundry room with a deep sink for added convenience. Tustin Ranch offers residents world-class dining, shopping, and entertainment just minutes away. The home is located within an award-winning school district that includes Ladera Elementary (adjacent to the gate), Pioneer Middle School, and the highly regarded Beckman High School just a short drive away. Single story homes in the coveted San Marino enclave are rarely available. This is a special opportunity to own a timeless home in one of Tustin's most desirable neighborhoods.