Introducing a St. Helena custom-built estate, the extraordinary expression of refined Wine Country living. Set on approximately 3.2 acres with sweeping views of acclaimed Newton Vineyard, this newly constructed residence blends contemporary sophistication with natural beauty, showcasing exceptional architectural details and curated finishes throughout. A private drive winds through the scenic western hills, where handcrafted rock walls frame the property's own hobby cabernet vineyard and olive grove, creating a tranquil and timeless sense of arrival. Inside, light-filled living spaces feature soaring ceilings, warm natural textures, and surround sound throughout, while the grand great room, with its cathedral wood coffered ceiling, opens to stunning vineyard vistas, creating an inviting setting for both intimate gatherings and large-scale entertaining. The home offers four en-suite bedrooms, a dedicated office, and a versatile media or auxiliary living space. One can't go far without wandering into the luxurious primary suite with 10-foot glass doors, layered vineyard views, and a spa-inspired bath with elevated designer finishes. At the center of the home, the gourmet kitchen is both functional and striking, featuring LG Signature appliances, an 800-bottle wine room, a range with a built-in air sous vide, custom cabinetry, an oversized island, and a statement copper-painted hood. Additional highlights include custom built-ins throughout, a metal roof, solar with backup battery, and huge flex space above the spacious four-car garage. Outdoors, the lifestyle continues with a pool, limestone pool deck, custom pizza oven, and BBQ, perfect for entertaining against a stunning vineyard backdrop. Completing the experience, Newton Vineyards extends a rare privilege for those who desire it, offering the owner the ability to roam and enjoy nearly 500 acres of its surrounding estate land, enhancing the sense of privacy and connection to the landscape. Located within the gated enclave of Madrona Ranch and just minutes from renown downtown St. Helena, this is a rare opportunity to be the first to call 2509 home.