Welcome to 12831 Fairhaven Extension, a single-story home in the North Tustin area featuring a detached casita/ADU and extensive parking. Double-gated entry opens to a circular driveway with two RV parking areas, a three-car garage, and parking for up to nine vehicles. The main residence offers 4 bedrooms and 3.5 bathrooms with a functional layout including formal living and dining rooms and a spacious family room connected to the kitchen. The primary bedroom includes access to a private patio. Interior features include high ceilings, crown molding, marble countertops, hardwood flooring, and a fireplace. A detached 1-bedroom, 1-bath casita/ADU provides additional flexible living space for guests, extended living arrangements, or a home office. The backyard includes a covered patio, grassy yard, landscaped garden areas, and mature fruit trees. Nearby outdoor recreation includes Irvine Regional Park and Peters Canyon Regional Park.