Welcome to 11 Hillsborough, an extensively remodeled residence within the exclusive gated community of Harbor Hill in Newport Beach. Thoughtfully designed for elevated coastal living, this 4-bedroom, 4-bath home blends timeless elegance with modern California style. A private courtyard and custom Dutch door lead into light-filled interiors featuring soaring ceilings, expansive windows, wide-plank white oak flooring, and a seamless indoor-outdoor flow throughout. The chef's kitchen is beautifully appointed with top-tier appliances, custom cabinetry, generous prep space, and a distinctive wood-slatted ceiling detail, all opening to the inviting family room with bifold doors to the backyard. Formal living and dining spaces offer refined yet comfortable entertaining, highlighted by designer lighting, custom millwork, and an elegant marble fireplace. A main-level bedroom with ensuite bath provides flexibility for guests or multi-generational living. Upstairs, the expansive primary suite serves as a private retreat with picturesque views, a fireplace, and a spa-inspired bath featuring a freestanding soaking tub, dual vanities, heated towel rack, and walk-in shower. Additional bedrooms, balconies, and a dedicated office complete the upper level. Designed for year-round entertaining, the resort-style backyard features a pool, spa, built-in BBQ, and multiple lounge and dining areas surrounded by mature landscaping and privacy. Ideally located near Newport Beach's finest beaches, shopping, dining, and top lifestyle amenities, 11 Hillsborough offers a rare opportunity to own a turnkey home within one of the area's most sought-after gated communities.The property includes a leased solar system. The system is not owned outright by the seller and is subject to an existing lease agreement. The buyer may need to assume the lease or qualify with the solar provider, depending on the lease terms and transfer requirements.