510 and 510 1/2 Avocado is an exceptional investment and development opportunity in one of Corona Del Mar's most desirable neighborhoods. Situated on an approximately 30' x 118' lot (3,540 sq. ft.) in the coveted Flower Streets, this existing duplex offers endless possibilities-live in as-is or lease for immediate income, renovate to maximize value, or redevelop into two custom luxury residences. Each unit of approx. 1,500 SF features 3 bedrooms, 2 bathrooms, plus a versatile bonus room that can be used as an office, or additional living space. The upper unit enjoys ocean views and a spacious private deck, perfect for indoor-outdoor coastal living. The lower unit has a front deck off the living room with peek-a-boo ocean views. Both properties open to the coastal breeze and sunsets. Located oceanside of Pacific Coast Highway, just two blocks from Begonia Park and across from the prestigious Irvine Terrace neighborhood, this property is also a short stroll to the shops, restaurants, and beaches of the Corona del Mar Village. Additional highlights include: -Great ingress/egress avoids Village traffic -Median with 2x free street parking as other locations -Shared two-car garage with storage space -Stately, wide street creates feeling of openness -Highly sought-after Flower Streets location -Elevated lot for privacy and enhanced views -Outstanding opportunity to remodel, hold, or build new. This is a rare chance to own a premier property in the heart of Corona del Mar, offering exceptional lifestyle appeal and long-term investment potential.