This Golden Square Mile residence is a masterpiece of design and craftsmanship, with expansive open-concept living areas bathed in natural light. White marble floors, coffered ceilings with integrated lighting and custom built-ins marry utility with elegance. The kitchen--with its grand island, bespoke cabinetry and butler's pantry--serves as both atelier and showpiece. Walls of glass frame a sweeping city view by day and a glittering skyline by night. The primary suite features two custom dressing rooms and dual marble bathrooms. A separate wing provides a self-contained suite for family or guests, offering independence and privacy.