Located on the highly sought-after Rural Lane Horseshoe in Eastside Costa Mesa, this beautifully designed and generously proportioned duplex presents an exceptional opportunity in todays market. Ideally positioned at the base of the street, the property enjoys a particularly desirable setting, offering a quiet, tree-lined environment surrounded by well-maintained homes that reflect the pride of ownership throughout the neighborhood. Both residences offer a wonderful sense of space and privacy, featuring open and inviting living areas, generously sized bedrooms, private outdoor entertaining spaces with expansive lawn areas, two-car garages with individual laundry facilities, and ample additional off-street parking across two large driveways. Unit A welcomes you with an inviting living room highlighted by a charming fireplace, which flows seamlessly into a formal dining area and a spacious kitchen offering abundant counter space and cabinetry. The residence features three generously sized bedrooms, including a private primary suite with vaulted ceilings and an en-suite bathroom, along with two additional spacious bedrooms and an updated secondary bathroom. Multiple skylights bring in an abundance of natural light throughout. French doors off the kitchen open to a private backyard retreat, complete with an ideal setting for al fresco dining and an expansive lawn area perfect for entertaining, recreation, or simply enjoying the outdoors. Unit B offers an equally appealing layout, with an open-concept living area flowing naturally into the kitchen. The main level also features a