Nestled along the serene edge of Promontory Bay on Harbor Island Drive in Newport Beach, this exceptional bayfront residence offers an unparalleled waterfront lifestyle. Boasting five bedrooms, four bathrooms, an office, and approximately 50 feet of prime deep-water frontage, the home features a private dock to accommodate three vessals finished in premium Brazilian hardwood. Stunning bay views greet you from both levels, highlighted by an expansive waterfront patio perfect for seamless indoor-outdoor entertaining. A dramatic two-story foyer welcomes you into a bright, open interior defined by refined nautical-inspired design and quality millwork throughout. The main level offers a versatile office (or sixth bedroom), formal dining room, and generous living and family rooms with French doors that open directly to the bayfront terrace. The gourmet kitchen shines with crisp white cabinetry, granite countertops, stainless steel appliances, and a large center island-ideal for casual gatherings and culinary creations. Upstairs, the luxurious bayfront primary suite is a true retreat, complete with a fireplace, sitting area, private view balcony, walk-in closet, and spa-style bath featuring a soaking tub and separate shower. Additional comforts include a two-car garage. Perfectly positioned for the region's finest dining, yachting, shopping, and recreational opportunities, this premier waterfront home delivers the ideal setting for relaxed coastal living and memorable entertaining in one of Newport Beach's most coveted enclaves.