Exceptional opportunity to own a spacious multi-family property in one of Cambridge's most desirable neighborhoods. Offering over 2,500 square feet of living space, this multi-family property is fully gutted and ready to be renovated with included permit ready plans. It features 6 bedrooms and 3 full bathrooms, providing flexibility for investors, owner-occupants, or multi-generational living. Situated on a 4,356-square-foot fenced lot, the property offers private outdoor space while being conveniently located near Harvard Square, Fresh Pond, public transportation, shopping, dining, parks, and major commuter routes. Each unit is designed for luxury living accommodations with strong rental potential in a highly sought-after market. Whether you're looking to expand your investment portfolio, generate rental income, or occupy one unit while leasing the others, this Cambridge property offers outstanding value and long-term potential. Condo conversion could be explored for maximum return.
| Units | 3 |
| Living area | 2,500 sqft |
| Lot size | 4,356 sqft |
| Year built | 1916 |
| Price / sqft | $760 |
| County | Middlesex |
| MLS # | 73544650 |
| Days on market | 5 days |
| Listed on | July 4, 2026 |
| Annual property tax | $8,822 |
| Tax year | 2025 |
| Assessed value | $1,389,300 |
| Zoning | B |
| Total actual rent | $0/mo |
| Stories | 3 |
| Total rooms | 19 |
| Lot size | 0.1 acres |
| Garage spaces | 0 |
| Parking spaces | 0 |
| Basement | Full, Walk-Out Access, Concrete, Unfinished |
| Foundation | Block |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Wood, Tile, Vinyl |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Gas Range, for Gas Oven, for Gas Dryer |
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Listing courtesy of a MLS PIN member office. Listing data © MLS PIN.
Auto-generated from the listing data — richer AI answers coming with the live site.
It is a 3-unit multi-family property with 2,500 sqft of living area, built in 1916.
109 Belmont St, Cambridge MA 02138 has been listed for 5 days (since July 4, 2026).
At a list price of $1,899,000 across 3 units, that works out to roughly $633,000 per unit.
Annual property taxes are $8,822 (2025), on an assessed value of $1,389,300.
At $1,899,000 for 2,500 sqft, that's about $760 per square foot.
109 Belmont St, Cambridge MA 02138 is in Cambridge, Middlesex County, MA 02138.

Justin Rollo is a Broker Associate with Signal Real Estate (MA Lic. #9534264) and a lifelong Massachusetts resident. Over 14 years and hundreds of transactions, he has worked investment properties — multi-families and house-hacking — across Greater Boston full-time. Away from real estate, Justin is a proud dad, youth coach and local school-committee member — and a former professional poker player who still loves golf and following local sports.