A truly exceptional offering! This beautifully expanded Colonial sits on a rare, level acre in one of Darien's most coveted neighborhoods. The property sets itself apart with sweeping, flat grounds, professionally landscaped to create both privacy and an elegant sense of openness. Inside, the home is designed for refined living and effortless entertaining. A gracious living room with a wood burning fireplace flows seamlessly into a formal dining room, creating a classic yet inviting atmosphere. The chef's kitchen is the heart of the home, centered around an oversized island and opening to a sunlit breakfast room with soaring ceilings, as well as a warm and inviting family room with a coffered ceiling and a fireplace. A sunroom filled with natural light offers a serene retreat, while a distinguished library with its own fireplace, custom built ins, and tall windows provides a sophisticated space for work or relaxation. The flexible first floor suite with a full bathroom serves perfectly as a private office or guest quarters. Upstairs, each bedroom features its own ensuite bathroom, ensuring comfort and privacy, while the primary suite is a true sanctuary, complete with private foyer, expansive walk-in closet, and spa inspired bathroom. Two substantial bonus rooms offer endless possibilities for a fitness studio, media lounge, or recreation space. Outdoors, the expansive stone patio and level grounds are as rare as they are beautiful, offering ample room for entertaining and recreation.