A rare, fully turn-key Mattapan multi-family delivering scale, flexibility, and immediate income in a high-demand Boston market. This oversized 3-family features three expansive 3 bed/1 bath units, each with layouts that can easily function as 4-bedroom apartments maximizing rental potential. Designed for today’s buyer, the property offers central air, updated electrical, hardwood floors, modern kitchens & baths, new siding, newer rubber roof, & decks throughout. The building is well-maintained with a strong in-place rent roll, creating a true plug-and-play investment or an ideal opportunity for an owner-occupant to offset their mortgage with substantial income. ***NOTE***Additional upside: the identical neighboring property at 19 Hosmer St is also available...purchase one or secure both for a scalable $240K+ gross annual rent play. Positioned near public transit, retail, and many amenities, this is a high-performing Boston multi-family with long-term appreciation and income growth!
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| Year | Land | Building | Total | Change |
|---|---|---|---|---|
| FY2023 | $218,600 | $695,500 | $914,100 | — |
| Date | Price | Book/Page |
|---|---|---|
| May 12, 2014 | $300,000 | 52958/315 |
No building permits on record since 2009.
| Field | Assessor | MLS | Match |
|---|---|---|---|
| Year built | 1,900 | 1,900 | ✓ |
Mattapan
21 Hosmer St, Boston MA 02126
Boston, MA 02126
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 06/04/2026 | ↓ Price Reduced | $1,299,000 | $51,000 | - | From $1,350,000 to $1,299,000 (-3.8%) |
| 05/14/2026 | 🏠 Listed for Sale | $1,350,000 | - | - | Original listing |
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