Welcome to 302 Sapphire Avenue, an original Balboa Island cottage brimming with potential, perfectly positioned on one of the most desirable and centrally located streets in the heart of the Island. Lovingly cared for by the same family for the past 75 years, this rare opportunity offers a classic 3-bedroom, 1-bathroom home with a sunroom addition—perfect for enjoying the coastal breeze or creating additional space to relax or entertain. A standout feature of the property is the spacious, private rear patio—ideal for alfresco dining, morning coffee, or gatherings with friends and family. Complementing this is a welcoming front yard shaded by a mature Elm tree, creating a sociable setting where neighbors and passersby often stop to chat—an enduring Balboa Island tradition. While the existing cottage exudes vintage character, the true value lies in the prime lot and location. This property presents an exceptional canvas for a custom-built dream home in one of Newport Beach’s most iconic neighborhoods. Whether you're looking to restore a piece of island history or build new from the ground up, the possibilities are endless. Sapphire Avenue is renowned for its ideal proximity to the island’s vibrant Marine Avenue shops, dining, and bayfront, making this an unbeatable settin