Welcome to 12 Griffen Ct, an extraordinary residence set within the prestigious North Harbor community of Miller Place, just minutes from the coveted sands of Cedar Beach. This grand colonial, offering over 4,000 square feet of refined living space, has been masterfully updated with no expense spared. Featuring five generously scaled bedrooms with the option for a sixth or nursery, and three full bathrooms each brand new, meticulously curated, and finished with the finest materials this home embodies luxury at every turn. The heart of the home is its expansive chef’s kitchen, complete with a magnificent center island offering full storage and roll-out drawers, a walk-in pantry with custom glass door, lazy susans for seamless function, dual stainless-steel refrigerators and bespoke cabinetry designed with elegance and efficiency in mind. A dramatic great room with cathedral ceilings, a formal den with vaulted architecture, beautiful oak floors throughout and carefully selected new chandeliers and custom hi-hats create an atmosphere of sophistication throughout. Closets are abundant in every room, ensuring both form and functionality. Upstairs, the palatial primary suite boasts its own cathedral ceilings, a spa-like bathroom with a free-standing soaking tub, expansive walk-in shower, and a thoughtfully designed bonus space ideal for a nursery, couture dressing room, or grand closet. Every detail down to the custom fixtures and intricate finishes has been curated with intention.The fully finished lower level offers soaring ceilings, a private exterior entrance, dual upgraded electrical panels, new mechanical, and endless possibilities for recreation, extended living, or personalized design. Outdoors, nearly an acre of manicured grounds awaits, featuring a brand-new deck, fire pit, renovated shed, retractable awning, and a backyard offering boundless opportunity—including ample room for a swimming pool. Additional highlights include multi-zone central air, both propane and wood-burning fireplaces, in-ground sprinklers, an oversized two-car garage, and a meticulously landscaped, fully fenced property. A rare offering along the North Shore Do not miss the opportunity to make this yours in one of the most desirable communities on the Long Island Sound!