A rare opportunity in the Santa Venetia area of San Rafael, 140 Mabry Way comes to market for the first time in more than 50 years. Set on an expansive, level one-fifth-acre parcel, this well-maintained home offers a unique combination of immediate livability and exciting future potential. The main residence features hardwood floors throughout the main level, an oversized 4th bedroom on the second level ideal; ideal for kids or recreational use, a formal dining room, dual-pane windows, spacious fully fence backyard, expansive walk out deck from the kitchen, central heat, updated electrical panel, and a new roof installed in 2024. Updated in 2024, and move-in ready 140 Mabry Way holds ample room for expansion and offers the new owner an opportunity to personalize and reimagine the property over time. At the rear of the parcel sits a detached approximately 560-square-foot garage, an exceptional bonus space with potential for an ADU, workshop, studio, home office, or a combination of uses, subject to applicable approvals. The oversized level lot also provides parking for 10+ vehicles and plentiful room to explore additional outdoor living, gardens, recreation, or future improvements. After more than five decades with the same family, 140 Mabry Way is ready for its next chapter. Conveniently located near Santa Venetia School, the Marin County Civic Center, China Camp State Park, shopping, transportation, and the many amenities of San Rafael, this is a special property offering space, flexibility, and possibilities that are increasingly difficult to find in Marin.