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!
The Acre, located between Downtown Lowell and the Merrimack River, is a historic and residential Lowell neighborhood with brick mill edges and compact side streets. The neighborhood’s character concentrates around the Western Avenue and Aiken Street corridor, where corner markets, takeout counters, and small storefronts set a steady, lived-in rhythm. Community pillars include Mill No. 5, the Lowell Memorial Auditorium, and the Lowell National Historical Park visitor sites nearby. Triple-deckers and older wood-frame homes define many blocks, with mill-era brickwork marking the transitions. Walkable streets lead toward the canal system and downtown arts venues. Pocket parks and schoolyards add breathing room between dense blocks.
Provided by Walk Score and Local Logic
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Interior features
Pantry
Living room
Kitchen
Family room
Office/den
Insulated windows
Storm windows
Bathrooms
4 full bathrooms
Kitchen
Range
Refrigerator
Freezer
Flooring
Wood
Hardwood
Heating & cooling
Baseboard heating
Natural gas heating
Exterior features
Fenced and enclosed
Porch
Patio
Covered outdoor area
Balcony/deck
Rain gutters
Professional landscaping
Decorative lighting
Home design
Four-family property
8 stories
Parking
6 parking spaces
Paved drive
Off-street parking
Tandem parking
On-street parking
Assigned parking
Deeded parking
Paved parking
Construction
Frame construction
Stone foundation
Shingle roof
Cream exterior
Utilities
Public water
Public sewer
110-volt electrical service
Circuit breakers
200+ amp electrical service
Individually metered electricity
HOA & community
Near public transportation, shopping, a university, and sidewalks
Electricity and solar
View estimated energy costs and solar savings for this home
CASH COW!!! A fantastic investment opportunity to own this large 4 unit building. 2 units have 4 beds/1 bath, and 2 units have 5 beds/1 bath. All units come fully furnished, and all furniture and appliances convey with the sale. Each unit has 2 private entrances, and separate gas and electricity meters. 2 back porches offer tenants a place to relax. All units have gas heating, gas cooking and gas hot water tanks. 3 gas-heating systems are new high efficiency. The building has new siding, a new roof and front stairs, as well as newer replacement windows. Updated electric panels with circuit breakers. The basement has 2 washers and 2 dryers that are coin-operated and generate additional income. There is secured storage for owner’s use in the basement, and a working toilet. 2 driveways for 4 cars, plus free, no permit street parking. Backyard shed allows for additional storage. All units are fully deleaded. Located near UMass Lowell public transportation! Open House Sat 10/23 12:00-2:00.
MLS PIN #70929587
Nov 16, 2009
Sold
$255,000
$48/sq ft
Jul 15, 2009
Contingent
—
Jul 1, 2009
Price Changed
$289,000
$54/sq ft
Jun 23, 2009
Price Changed
$299,000
$56/sq ft
Jun 5, 2009
Listed
$339,900
$63/sq ft
FOUR FAMILY WITH THREE BEDROOMS IN EACH UNIT. SEPARATE UTILITES, SEPARATE ENTRANCES. COIN-OPERATED LAUNDRY IN THE BASEMENT. SUBJECT TO CURRENT LENDER APPROVAL.
MLS PIN #70288341
Feb 1, 2006
Sold
$459,900
$86/sq ft
Jan 7, 2006
Listing Removed
—
Nov 1, 2005
Listed
$459,900
$86/sq ft
MLS PIN #30020364
Mar 27, 1995
Sold
$100,000
$19/sq ft
Feb 6, 1995
Listing Removed
—
Dec 13, 1994
Listed
$119,900
$22/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$9,882 (+0.6%)
$108,200 + $752,600
$860,800
2024
$9,827 (−2.5%)
$101,100 + $724,000
$825,100
2023
$10,084 (+14.5%)
$87,900 + $724,000
$811,900
2022
$8,807 (+7.2%)
$79,900 + $614,100
$694,000
2021
$8,215 (+2.5%)
$69,500 + $540,800
$610,300
2020
$8,017 (+23.4%)
$59,300 + $540,800
$600,100
2019
$6,498 (+3.6%)
$52,300 + $410,500
$462,800
2018
$6,273 (+12.3%)
$49,900 + $386,000
$435,900
2017
$5,585 (−1.6%)
$45,300 + $329,000
$374,300
2016
$5,674 (+13.5%)
$45,300 + $329,000
$374,300
2015
$4,997 (+22.6%)
$46,700 + $276,100
$322,800
2013
$4,075 (+1.6%)
$62,100 + $209,400
$271,500
2012
$4,010 (−1.9%)
$62,100 + $209,400
$271,500
2011
$4,088 (−7.2%)
$66,200 + $220,300
$286,500
2010
$4,407 (+6.7%)
$78,600 + $253,500
$332,100
2009
$4,129
$77,900 + $275,600
$353,500
Public record
Public record
Zoning
Beds
9
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
5,227 Sq. Ft.
Year renovated
—
Finished Sq. Ft.
5,355
Unfinished Sq. Ft.
—
Total Sq. Ft.
5,355
Year built
1900
Style
Multi-Family (5+ Unit)
County
Middlesex County
APN
3180186
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 16, 2026.
TTF
Traditional Neighborhood Two Family District
Traditional Neighborhood Residential Districts are designed to preserve, promote, and enhance the pedestrian-scale character of Lowell’s historic residential neighborhoods. All three encourage moderately-sized lots and prohibit large-scale developments. The TSF district emphasizes single-family homes, the TTF district also allows two-family homes, while the TMF also allows three-family homes and up to 6-unit multi-family developments by special permit. To encourage neighborhood stability and owner-occupancy, special provisions are provided for single-family developments in the TTF and TMF zones.
Permitted uses
Include but are not limited to:
Religious facility
Day care facility
Housing-Single unit
Housing-Other
Mixed use
Public service
Educational/school
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 96° expected this year, 16 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Lowell, MA • 01854
Average low and high temperatures (°F)
32
17
35
18
50
30
60
39
68
50
80
60
85
65
81
58
75
54
63
44
51
34
37
22
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
54/ 100
Moderate sunlight
Sunscore
There appears to be some shading by surrounding buildings, terrain, and vegetation.
6.8 hrs
3.2 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 21 Clare St
$1,106,286
$6,287 over list price of $1.10M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $575K to $940K.