Exceptional triple-decker investment opportunity in the heart of Dorchester. This well-maintained, thoughtfully updated property features three spacious units with 3 bedrooms each and a strong rental history—ideal for investors or owner-occupants. Interiors offer updated kitchens with granite countertops, modern cabinetry, hardwood floors, and refreshed baths. Recent improvements include a fully renovated first floor (2023), third-floor updates and fresh paint (2026), and second-floor kitchen and bath updates (2026). Major upgrades include newer heating systems, updated plumbing and electrical, water tanks (2025), and a full French drain (2023). Exterior improvements include granite front stairs and a new walkway (2025), fence and driveway (2015). Additional highlights: coin-op laundry, corner lot, and parking for four cars, convenient location close to public transportation and all amenities. Virtual walkthrough/tour available.
| Units | 3 |
| Living area | 3,243 sqft |
| Lot size | 4,167 sqft |
| Year built | 1930 |
| Price / sqft | $373 |
| County | Suffolk |
| MLS # | 73506636 |
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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 3,243 sqft of living area, built in 1930.
At a list price of $1,175,000 across 3 units, that works out to roughly $391,667 per unit.
At $1,175,000 for 3,243 sqft, that's about $373 per square foot.
55 Mascot St, Boston MA 02124 is in Boston, Suffolk County, MA 02124.

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.