Add this turnkey, impeccably updated and maintained 6-unit Back Bay brownstone w/5 parking spaces to your investment portfolio. (4) one bedroom apartments; (1) two bedroom / two bathroom apartment; (1) two bedroom / one bathroom apartment. Common, card based laundry is located on the ground level of the building. Building features keyless entry, fully equipped and renovated stainless and quartz kitchens, renovated bathrooms, and updated electrical service to each unit. All apartments leased through August 31, 2027. This location is an incredible asset and attractive to an array of perspective residents with nearby MIT, Boston University, Longwood Medical, Copley Sq/Prudential, downtown Boston and easy access to Storrow Drive, the Mass Pike, and a number of T stops.
| Units | 6 |
| Living area | 4,012 sqft |
| Lot size | 99,999 sqft |
| Year built | 1900 |
| Price / sqft | $1,194 |
| County | Suffolk |
| MLS # | 73597754 |
| Days on market | 0 days |
| Listed on | November 2, 2026 |
| Annual property tax | $27,993 |
| Tax year | 2027 |
| Assessed value | $2,236,100 |
| Zoning | 0111 |
| Gross income (actual) | $280,080/yr |
| Net operating income (actual) | $208,399/yr |
| Total actual rent | $23,340/mo |
| Stories | 5 |
| Total rooms | 20 |
| Lot size | 2.3 acres |
| Garage spaces | 0 |
| Parking spaces | 5 |
| Parking | Off Street, Tandem, Paved |
| Basement | Partially Finished, Walk-Out Access |
| Foundation | Other |
| Roof | Rubber |
| Flooring | Wood, Tile, Other, Carpet |
| Heating | Oil, Common |
| Sewer | Public Sewer |
| Water | Public |
| Appliances | Washer, Dryer |
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Listing courtesy of A & S Realty Co., Inc. — Valerie Filiberto. Listing data © MLS PIN.
Answered from the listing data and public map data.
It is a 6-unit multi-family property with 4,012 sqft of living area, built in 1900.
426 Marlborough St., Boston MA 02115 has been listed for 0 days (since November 2, 2026).
At a list price of $4,790,000 across 6 units, that works out to roughly $798,333 per unit.
Annual property taxes are $27,993 (2027), on an assessed value of $2,236,100.
At $4,790,000 for 4,012 sqft, that's about $1,194 per square foot.
5 total parking spaces (off street, tandem, paved).
426 Marlborough St., Boston MA 02115 is in Boston, Suffolk County, MA 02115.

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.