Spectacular custom home in the highly desirable 100 block of Sapphire, offering an incredible combination of indoor/outdoor living, Bay views, and generous entertaining spaces across three levels. An elevated front patio with views toward the Bay opens to an expansive great room with fireplace and beautiful built-in shelving, dining area, and a stunning chef's kitchen with large island, bar seating, and abundant storage. Bifold doors open to a private interior courtyard, creating an additional outdoor entertaining space directly off the main level. Also on the first floor are a dedicated laundry room, powder bath, and temperature-controlled walk-in wine cellar. The second level is highlighted by a spacious primary suite with high ceilings, a private balcony with Bay views, generous closet space, and a large primary bath, along with two guest bedrooms, an additional bath, a covered outdoor deck, and a large den offering flexible space for a media room, family room, or additional lounge. The third level features a loft/den, oversized storage area, and an expansive rooftop deck with fireplace, sink, entertaining areas, and beautiful views toward the Bay. The home was thoughtfully designed with dedicated space for the future installation of an elevator servicing all three levels, providing the opportunity to add elevator access without sacrificing existing living space. Additional features include central air conditioning, a two-car garage, outdoor shower, and more. This is a rare opportunity to own an outstanding custom home with exceptional indoor/outdoor spaces, tremendous flexibility, and Bay views in one of the most sought-after locations in the 100 block of Balboa Island.