- PORTFOLIO SALE - Property being sold in conjunction with 171-173 Belmont Street mls# 73572651. THE LISTING PRICE IS FOR THE PORTFOLIO. It is a placeholder and represents the Portfolio price. This Property can not be purchased separately. MLS does not offer Portfolio Sale option.
| Units | 3 |
| Living area | 3,667 sqft |
| Lot size | 5,000 sqft |
| Year built | 1900 |
| Price / sqft | $791 |
| County | Middlesex |
| MLS # | 73572654 |
| Days on market | 0 days |
| Listed on | September 7, 2026 |
| Annual property tax | $15,650 |
| Tax year | 2025 |
| Assessed value | $1,374,000 |
| Zoning | R |
| Gross income (actual) | $96,000/yr |
| Net operating income (actual) | $96,000/yr |
| Total actual rent | $8,000/mo |
| Stories | 3 |
| Total rooms | 17 |
| Lot size | 0.11 acres |
| Garage spaces | 0 |
| Parking spaces | 2 |
| Parking | Shared Driveway, Off Street, Guest |
| Basement | Full, Walk-Out Access, Interior Entry, Sump Pump, Concrete, Unfinished |
| Foundation | Concrete Perimeter |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Wood, Tile, Vinyl / VCT, Hardwood, Pine, Stone/Ceramic Tile |
| Heating | Central, Steam |
| Cooling | Window Unit(s) |
| Sewer | Public Sewer |
| Water | Public |
| Appliances | Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer |
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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 3,667 sqft of living area, built in 1900.
5 Marlboro St, Belmont MA 02478 has been listed for 0 days (since September 7, 2026).
At a list price of $2,900,000 across 3 units, that works out to roughly $966,667 per unit.
Annual property taxes are $15,650 (2025), on an assessed value of $1,374,000.
At $2,900,000 for 3,667 sqft, that's about $791 per square foot.
2 total parking spaces (shared driveway, off street, guest).
5 Marlboro St, Belmont MA 02478 is in Belmont, Middlesex County, MA 02478.

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.