Legal 3-Family with additional rental Income and value add potential.A great opportunity to own a legal 3-family in Mattapan with additional finished space and multiple ways to add value. The property offers three legal units, along with a finished attic currently rented for $2,350/month and a finished basement featuring 3 bedrooms and 2 full bathrooms. The existing rental income provides a solid starting point, while the additional finished space gives the next owner flexibility and upside. There is an opportunity to improve the property's overall income and value through strategic updates, while maintaining the existing 3-family configuration. With a combination of rental income, substantial finished space, and room for future improvements, this property is well suited for anyone looking to increase cash flow or an owner-occupant looking to offset their housing costs with rental income. Located in Mattapan with convenient access to public transportation, shopping, restaurants, and major routes into Boston. A property with plenty of space, existing income, and a clear value-add opportunity.
| Units | 3 |
| Living area | 4,989 sqft |
| Lot size | 5,841 sqft |
| Year built | 1905 |
| Price / sqft | $391 |
| County | Suffolk |
| MLS # | 73558560 |
| Days on market | 0 days |
| Listed on | August 3, 2026 |
| Annual property tax | $11,864 |
| Tax year | 2025 |
| Assessed value | $1,024,500 |
| Zoning | R3 |
| Gross income (actual) | $42,600/yr |
| Net operating income (actual) | $42,600/yr |
| Total actual rent | $5,900/mo |
| Stories | 4 |
| Total rooms | 22 |
| Lot size | 0.13 acres |
| Garage spaces | 0 |
| Parking spaces | 0 |
| Foundation | Other |
| Sewer | Public Sewer |
| Water | Public |
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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 4,989 sqft of living area, built in 1905.
12 Hiawatha, Boston MA 02126 has been listed for 0 days (since August 3, 2026).
At a list price of $1,950,000 across 3 units, that works out to roughly $650,000 per unit.
Annual property taxes are $11,864 (2025), on an assessed value of $1,024,500.
At $1,950,000 for 4,989 sqft, that's about $391 per square foot.
12 Hiawatha, Boston MA 02126 is in Boston, Suffolk County, MA 02126.

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.