Welcome to 15 Foster Street, a sophisticated and fully renovated 2 unit multi family ideally situated in Arlington’s coveted East Side. Thoughtfully reimagined for modern living, each residence offers 4 bedrooms, 2 full and 2 half bathrooms, and beautifully designed living space across four finished levels. The main level features a welcoming foyer, powder room, and kitchen with custom cabinetry, stone countertops, and induction cooktop, flowing seamlessly into the open living and dining areas. Upstairs, three spacious bedrooms include two with generous walk-in closets, complemented by a stylish full bath with double vanity.The private top-floor primary suite offers a luxurious retreat with en-suite bath, double vanity, walk-in closet, and private roof deck. A fully finished lower level provides versatile space for a family room, home office, gym, or playroom. Each residence also offers private outdoor space. Ideally located less than half a mile from downtown Arlington’s acclaimed restaurants, cafés, shops, bike path, and more. A rare combination of refined finishes, flexible living space, and exceptional location.
| Units | 2 |
| Living area | 4,648 sqft |
| Lot size | 4,783 sqft |
| Year built | 1921 |
| Price / sqft | $611 |
| County | Middlesex |
| MLS # | 73578009 |
| Days on market | 0 days |
| Listed on | September 16, 2026 |
| Annual property tax | $99,999,999 |
| Tax year | 2026 |
| Assessed value | $999,999,999 |
| Zoning | R2 |
| Gross income (actual) | $132,000/yr |
| Net operating income (actual) | $132,000/yr |
| Total actual rent | $11,000/mo |
| Stories | 6 |
| Total rooms | 13 |
| Lot size | 0.11 acres |
| Garage spaces | 0 |
| Parking spaces | 4 |
| Parking | Paved Drive, Off Street |
| Basement | Full, Finished |
| Foundation | Concrete Perimeter |
| Roof | Shingle |
| Flooring | Hardwood |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup |
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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 2-unit multi-family property with 4,648 sqft of living area, built in 1921.
15 Foster Street, Arlington MA 02474 has been listed for 0 days (since September 16, 2026).
At a list price of $2,839,000 across 2 units, that works out to roughly $1,419,500 per unit.
Annual property taxes are $99,999,999 (2026), on an assessed value of $999,999,999.
At $2,839,000 for 4,648 sqft, that's about $611 per square foot.
4 total parking spaces (paved drive, off street).
15 Foster Street, Arlington MA 02474 is in Arlington, Middlesex County, MA 02474.

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.