Located in highly desirable Warrendale, this spacious two-family home offers an exceptional opportunity for homeowners, developers, and investors seeking to build equity. The first-floor apartment features five rooms with two bedrooms, while the second-floor unit offers six rooms with three bedrooms. Both apartments showcase hardwood floors in the living rooms, dining rooms, and bedrooms, along with classic built-in dining room hutches that add timeless character. Double-pane windows provide improved energy efficiency, and each unit includes both front and rear covered porches, perfect for relaxing or enjoying the outdoors. Ideally situated near Waverley Square, this property offers convenient access to local shops, restaurants, parks, Watertown Center, and Arsenal Yards. Enjoy the nearby Charles River walking, jogging, and bike path. Commuters will enjoy easy access to the Massachusetts Turnpike, multiple public transportation options, and the commuter rail.
| Units | 2 |
| Living area | 2,250 sqft |
| Lot size | 3,600 sqft |
| Year built | 1935 |
| Price / sqft | $427 |
| County | Middlesex |
| MLS # | 73547064 |
| Days on market | 22 days |
| Listed on | July 9, 2026 |
| Annual property tax | $10,498 |
| Tax year | 2026 |
| Assessed value | $860,500 |
| Zoning | S-6 |
| Gross income (actual) | $54,000/yr |
| Net operating income (actual) | $54,000/yr |
| Total actual rent | $4,500/mo |
| Stories | 2 |
| Total rooms | 11 |
| Lot size | 0.08 acres |
| Garage spaces | 0 |
| Parking spaces | 6 |
| Parking | Off Street, Assigned, Paved |
| Basement | Full |
| Foundation | Block |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Wood, Vinyl |
| Heating | Oil |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Gas Range, for Electric Dryer |
| Appliances | Range, Refrigerator |
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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 2,250 sqft of living area, built in 1935.
18 Prospect Street, Watertown MA 02472 has been listed for 22 days (since July 9, 2026).
At a list price of $960,000 across 2 units, that works out to roughly $480,000 per unit.
Annual property taxes are $10,498 (2026), on an assessed value of $860,500.
At $960,000 for 2,250 sqft, that's about $427 per square foot.
6 total parking spaces (off street, assigned, paved).
18 Prospect Street, 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.