Classic Watertown two-family in a desirable neighborhood near the Belmont line! This well-maintained property offers two spacious units, each featuring two bedrooms, a full bath, living room, formal dining room with charming built-ins, and hardwood floors. The second-floor unit offers additional flexibility with a finished third-floor area featuring a family room and bonus room, complete with electric heat and air conditioning. Enjoy inviting front and rear porches, including an enclosed three-season porch with windows and screens, plus a private backyard with sprinkler system. Additional highlights include updated mechanical systems, a full basement with laundry and storage, a detached two-car garage, and ample driveway parking. Ideal for an owner-occupant looking to enjoy the upper-level living space while generating rental income from the first floor, or an investor seeking a solid multifamily opportunity. Conveniently located near Watertown High School, Oakley Country Club, Watertown Square, Arsenal Yards, the Charles River, and commuter routes to Cambridge and Boston.
| Units | 2 |
| Living area | 2,150 sqft |
| Lot size | 5,379 sqft |
| Year built | 1915 |
| Price / sqft | $535 |
| County | Middlesex |
| MLS # | 73589593 |
| Days on market | 5 days |
| Listed on | October 7, 2026 |
| Annual property tax | $13,369 |
| Tax year | 2026 |
| Assessed value | $1,095,800 |
| Zoning | S-6 |
| Gross income (actual) | $31,200/yr |
| Net operating income (actual) | $31,200/yr |
| Total actual rent | $2,600/mo |
| Stories | 3 |
| Total rooms | 10 |
| Lot size | 0.12 acres |
| Garage spaces | 2 |
| Parking spaces | 6 |
| Parking | Paved Drive, Off Street, Paved |
| Basement | Full, Concrete, Unfinished |
| Foundation | Concrete Perimeter |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Tile, Hardwood, Stone/Ceramic Tile |
| Heating | Hot Water, Natural Gas |
| Cooling | None |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Gas Range, for Electric Dryer, Washer Hookup |
| Appliances | Range, Microwave, Refrigerator |
More about investing in Watertown →
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 2,150 sqft of living area, built in 1915.
227 Common St, Watertown MA 02472 has been listed for 5 days (since October 7, 2026).
At a list price of $1,150,000 across 2 units, that works out to roughly $575,000 per unit.
Annual property taxes are $13,369 (2026), on an assessed value of $1,095,800.
At $1,150,000 for 2,150 sqft, that's about $535 per square foot.
2 garage spaces and 6 total parking spaces (paved drive, off street, paved).
227 Common St, Watertown MA 02472 is in Watertown, Middlesex County, MA 02472.

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.