Set back down a quiet lane, this rare Martinez property offers the perfect blend of comfortable living and exceptional income potential. Featuring a spacious single-family ranch home plus a detached turnkey duplex, it's an ideal opportunity for owner-occupants looking to offset their mortgage, those seeking multi-generational living, or investors searching for a versatile income-producing property. Live in the vacant main residence while benefiting from rental income generated by the duplex, or maximize returns with over $100,000 annual gross income potential. The beautifully updated 3-bedroom, 2.5-bath single-story ranch offers 2,508 sq. ft. of inviting living space filled with warmth and character. The stunning great room features soaring vaulted wood-beam ceilings, while remodeled bathrooms, updated flooring, fresh interior paint, and fresh exterior paint provide modern appeal. Enjoy the oversized covered patio, putting green, and seamless indoor-outdoor living. The detached duplex includes two updated 2-bedroom, 1-bath residences, each with a private garage, in-unit laundry, separate utilities, and a newer roof. Ideally located just minutes from vibrant downtown Martinez, popular restaurants, breweries, the farmers market, Amtrak, waterfront trails, and convenient Highway 4 and I-680 access. A unique opportunity to enjoy the comfort of a spacious home with the added flexibility and value of an income-producing duplex.