Great opportunity to own this San Geronimo home set in an ideal sunny West Marin location on a large, flat lot. This exceptional property offers remarkable flexibility and opportunity. Currently functioning beautifully as a spacious 4-bedroom, 2-bath single-family home, the residence features two expansive outdoor yard areas, perfect for a country garden, entertaining, or simply relaxing in a peaceful natural setting. Previously occupied by one family, the dividing hallway wall between the two units has been removed, creating a seamless living environment. With ease, the property can be returned to its original configuration as two separate 2-bedroom, 1-bath units, an excellent option for a profitable duplex, multi-generational living, or a home with an ADU-style setup. The wall can be reinstalled to restore privacy, with each unit enjoying its own large, level yard. Each unit offers wood flooring, updated kitchens and bathrooms, air conditioning, and a private garage, making the home both comfortable and functional whether used as one residence or two. Located in the heart of West Marin and surrounded by open space preserves, this home provides immediate access to hiking trails, road and mountain biking, and horseback riding. An outstanding opportunity to enjoy the West Marin lifestyle with versatility and room to grow.