AMAZING OWNER OCCUPANT OR INVESTOR OPPORTUNITY - MASSIVE DELEADED & REMODELED 4 unit building! That feels like 2 separate 3 family buildings. All units has 3 beds & 1 bath, separated utilities, private entrances, either a back porch or patio & access to bonus 3rd floor "storage" rooms! ( third floor on both sides not even in use currently- possible conversion opportunity!) All units have separated gas heating, gas cooking and gas hot water tanks, 1 new gas on-demand tankless in 2026 Unit 25 Remodeled & new landscaping in 2026. Units 21 & 23 Remodeled 2025. 4 new high efficiency gas-heating systems were installed, 3 in 2021 the other in 2022, new vinyl siding 2021, new roof 2021 and new front stairs 2021, Vinyl replacement windows. Basement has updated electric panels with circuit breakers, 2 coin-op washers & 2 coin-op dryers . There is secured storage for owner’s use in the basement, & a working toilet. 2 driveways for 4 cars & 2 reserved spots in front of building., All units are fully de-leaded. Located near UMass Lowell & public transportation!
| Units | 4 |
| Living area | 5,355 sqft |
| Lot size | 5,227 sqft |
| Year built | 1900 |
| Price / sqft | $205 |
| County | Middlesex |
| MLS # | 73594222 |
| Days on market | 0 days |
| Listed on | October 22, 2026 |
| Annual property tax | $11,555 |
| Tax year | 2026 |
| Assessed value | $1,018,100 |
| Zoning | TTF |
| Gross income (actual) | $148,800/yr |
| Net operating income (actual) | $148,800/yr |
| Total actual rent | $12,400/mo |
| Stories | 8 |
| Total rooms | 32 |
| Lot size | 0.12 acres |
| Garage spaces | 0 |
| Parking spaces | 6 |
| Parking | Paved Drive, Off Street, Tandem, On Street, Assigned, Deeded, Paved |
| Basement | Full, Walk-Out Access, Interior Entry, Concrete, Unfinished |
| Foundation | Stone |
| Roof | Shingle |
| Construction | Frame |
| Flooring | Wood, Hardwood |
| Heating | Baseboard, Natural Gas |
| Sewer | Public Sewer |
| Water | Public |
| Utilities | for Electric Range, for Gas Oven, for Electric Oven |
| Appliances | Range, Refrigerator, Freezer |
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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 4-unit multi-family property with 5,355 sqft of living area, built in 1900.
21 Clare St, Lowell MA 01854 has been listed for 0 days (since October 22, 2026).
At a list price of $1,099,999 across 4 units, that works out to roughly $275,000 per unit.
Annual property taxes are $11,555 (2026), on an assessed value of $1,018,100.
At $1,099,999 for 5,355 sqft, that's about $205 per square foot.
6 total parking spaces (paved drive, off street, tandem, on street, assigned, deeded, paved).
21 Clare St, Lowell MA 01854 is in Lowell, Middlesex County, MA 01854.

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.