Overlooking the prestigious first block of Commonwealth Avenue, just steps from the Boston Public Garden, this extraordinary extra-wide triplex offers one of Back Bay’s most coveted addresses. Highlights include direct elevator access to every level, three sun-filled exposures, a private roof deck ideal for entertaining, and the rare luxury of two garage parking spaces. An elegant foyer leads to a grand fireplaced living room that opens to a remarkable walk-out side terrace overlooking the Commonwealth Avenue Mall. A gourmet kitchen with breakfast nook and an elegant formal dining room enjoy classic Back Bay views. The serene primary suite features a fireplace, sitting area, custom closets, and a marble spa bath, complemented by three additional bedrooms and a refined library or home office with built-ins. Soaring ceilings, oversized windows, bunk room, a wet bar, and exceptional storage complete this timeless and sophisticated residence.