Introducing 222 Costa Mesa St, a remarkable duplex that encapsulates the essence of coastal living in the highly desirable Eastside Costa Mesa neighborhood, adjacent to Newport Beach. This unique property, with its two separate entrances and addresses, offers an extraordinary opportunity for both homeownership and investment. Unit 222 is an exquisite 4 bed, 4 bath residence that exudes luxury and sophistication. This expansive unit boasts its own yard, two separate 2-car garages, and generous living space. The gourmet kitchen, equipped with top-tier appliances including a Sub-Zero refrigerator and a 6-burner freestanding range, is an entertainer's dream. The travertine countertops add an elegant touch, while fireplaces in both the living room and the primary suite create a warm and inviting atmosphere. The spacious, light-filled bedrooms offer serene retreats for rest and relaxation. Unit 220 is a charming 1 bed, 1 bath hideaway. This unit features its own private backyard, providing a tranquil outdoor sanctuary perfect for relaxation and entertaining. This propertys dual-unit configuration makes it ideal for buyers looking to live in one unit while renting out the other, providing potential for additional income or accommodating multigenerational living arrangements. Located just minutes from the pristine beaches of Newport, residents can easily embrace the coastal lifestyle. Enjoy outdoor activities in the nearby Back Bay, or indulge in world-class shopping at South Coast Plaza and Fashion Island. With convenient access to the 55 and 73 freeways, as well as PCH (Pacific C