21 Addison St is a 5,114 square foot multi-family home on a 7,405 square foot lot with 6 bedrooms and 4 bathrooms. - it last sold on November 18, 1997 for $435,000. Based on Redfin's Arlington data, we estimate the home's value is $1,939,276.
Multi-familyProperty Type
1915Year Built
7,405 sq ftLot Size
$379Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,939,276
$1.5M since sold in November 1997$20K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5% higher than the average sale price ($1.85M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R1
Single-Family District
The predominant uses in R1 are single-family dwellings and public land and buildings. The Town discourages intensive land uses, uses that would detract from the single-family residential character of these neighborhoods, and uses that would otherwise interfere with the intent of this Bylaw.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Group
Housing-Single unit
Infrastructure
Recreation
Park & open space
Property details
Interior
Basement Information
Basement Sq. Ft: 2,091
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 2
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 14
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Multi-Family
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Hip
Property Information
Living Sq. Ft: 5,114
Gross Sq. Ft: 8,638
# of Units: 2
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,405
Municipality Name: ARLINGTON
Acres: 0.17
Zoning Code: R1
State Use Description: 2-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 6
Baths: 4.0
Sq. Ft.: 5,114
Stories: 2.0
Lot Size: 7,405 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1915
Year Renovated: 1959
County: Middlesex County
APN: 3826799S
Home facts updated by county records on Jul 28, 2026
Around this home
Schools
Gibbs School
Public 6 • Assigned • 0.5mi
9/10
Arlington High School
Public 9-12 • Assigned • 0.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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 98° expected this year, 15 days in 30 years
6/10 Wind Factor
67% 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
Arlington, MA • 02476
Average low and high temperatures (°F)
33
18
35
19
50
31
59
39
68
50
79
60
84
65
80
58
74
55
63
44
52
35
38
23
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.2 hours in
June and 4.4 hours in December, placing it below the
U.S. average for solar exposure.
9.2 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.84M – $2.23M
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