Exceptional six-family investment opportunity just steps from Kendall Square. This well-maintained three-story building features two units per floor. The two ground-level units offer private entrances, while the upper-level units are accessed via shared entrances—one for the left-side units on the second and third floors, and one for the right side. Four units (on the ground and second floors) include 2 bedrooms and 1 bathroom, while the two top-floor units feature 3 bedrooms and 1 bathroom. The property has been professionally managed, and all units are in excellent condition. Strong rental income with a cap rate above 5%. Flexible ownership options: occupy one unit and rent the others or operate all six as income-generating rentals. All current leases end on Aug 31, 2026. A full basement with over 1,800 square feet offers significant potential for additional use or future finishing. See attached interactive floor plans and 3D tour for a detailed view of the property.
| Units | 6 |
| Living area | 5,267 sqft |
| Lot size | 4,049 sqft |
| Year built | 1915 |
| Price / sqft | $702 |
| County | Middlesex |
| MLS # | 73506308 |
| Days on market | 9 days |
| Listed on | April 23, 2026 |
| Annual property tax | $15,150 |
| Tax year | 2026 |
| Assessed value | $2,271,300 |
| Zoning | C-1 |
| Gross income (actual) | $20,050/yr |
| Net operating income (actual) | $194,400/yr |
| Total actual rent | $20,050/mo |
| Stories | 5 |
| Total rooms | 33 |
| Lot size | 0.09 acres |
| Garage spaces | 0 |
| Parking spaces | 0 |
| Parking | On Street |
| Basement | Full, Unfinished |
| Foundation | Stone |
| Roof | Tar/Gravel |
| Construction | Stone |
| Flooring | Tile, Vinyl, Hardwood |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Gas Range |
Listing courtesy of Coldwell Banker Realty - Cambridge — Nathan Long. Listing data © MLS PIN.
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It is a 6-unit multi-family property with 5,267 sqft of living area, built in 1915.
9-15 Berkshire St, Cambridge MA 02141 has been listed for 9 days (since April 23, 2026).
Annual property taxes are $15,150 (2026), on an assessed value of $2,271,300.
At $3,698,000 for 5,267 sqft, that's about $702 per square foot.
9-15 Berkshire St, Cambridge MA 02141 is in Cambridge, Middlesex County, MA 02141.