Unbeatable location meets incredible versatility at 309 Beacon Street, a massive 7-bedroom, 3.5-bathroom residence perfectly situated on the Cambridge/Somerville line. Delivering immediate high-income potential, the sun-filled, multi-level interior features a modern eat-in kitchen with granite countertops and stainless steel appliances, classic hardwood floors, central heat and A/C, and relaxing jacuzzi tubs. Exceptional outdoor and logistical perks truly set this property apart, including a deck ideal for entertaining and rare off-street parking accommodating up to four vehicles. Boasting a stellar 96 Walk Score, the home is just steps from Porter Station, Harvard University, and the vibrant dining and shopping scenes driving local demand. Whether you are looking for a premier, turnkey rental asset with a perennial tenant pool or a smart multi-family conversion project (subject to approval), this highly flexible property promises exceptional value.