Generational Cambridge multifamily, held by the same family since 1990! 329 Broadway is a 5-unit building offering a mix of one studio and four two-bedroom apartments. Owning a 5-unit property in this location is a rarely available opportunity, and this one offers flexibility for a range of buyers: an owner-occupant looking to live in one unit and rent the rest, an investor seeking strong rental income, or a buyer exploring a potential condo conversion, subject to buyer due diligence. The location is exceptional, close to Harvard Square, Central Square, and Kendall Square, with convenient access to world-class universities, major life science and tech employers, dining, retail, and the Red Line. A new owner can add value through unit upgrades, improved operations, and setting rents at market. Set in one of Greater Boston’s most supply-constrained rental markets, this is a true generational asset. Financials available upon request.
| Units | 5 |
| Living area | 5,748 sqft |
| Lot size | 3,187 sqft |
| Year built | 1854 |
| Price / sqft | $644 |
| County | Middlesex |
| MLS # | 73597181 |
| Days on market | 0 days |
| Listed on | October 30, 2026 |
| Annual property tax | $16,063 |
| Tax year | 2026 |
| Assessed value | $1,456,900 |
| Zoning | O-1 |
| Gross income (actual) | $171,120/yr |
| Net operating income (actual) | $143,471/yr |
| Total actual rent | $6,230/mo |
| Electric expense | $1,814/yr |
| Insurance expense | $4,049/yr |
| Stories | 5 |
| Total rooms | 17 |
| Lot size | 0.07 acres |
| Garage spaces | 0 |
| Parking spaces | 0 |
| Parking | Off Street |
| Basement | Unfinished |
| Foundation | Concrete Perimeter |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Wood, Hardwood |
| Heating | Baseboard |
| Cooling | Window Unit(s) |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Gas Range |
| Appliances | Oven, Dishwasher, Refrigerator, Range Hood, Microwave |
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Listing courtesy of Compass — Yassien Youssef. Listing data © MLS PIN.
Answered from the listing data and public map data.
It is a 5-unit multi-family property with 5,748 sqft of living area, built in 1854.
329 Broadway, Cambridge MA 02139 has been listed for 0 days (since October 30, 2026).
At a list price of $3,700,000 across 5 units, that works out to roughly $740,000 per unit.
Annual property taxes are $16,063 (2026), on an assessed value of $1,456,900.
At $3,700,000 for 5,748 sqft, that's about $644 per square foot.
329 Broadway, Cambridge MA 02139 is in Cambridge, Middlesex County, MA 02139.

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.