20 Alden Rd is a 2,765 square foot multi-family home on a 6,098 square foot lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $1,226,845.
Multi-familyProperty Type
1900Year Built
6,098 sq ftLot Size
$444Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,226,845
$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.4% lower than the average sale price ($1.40M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$14,045 (+7.2%)
$607,700 + $543,500
$1,151,200
2025
$13,106 (+5.7%)
$607,700 + $514,400
$1,122,100
2024
$12,404 (−9.5%)
$599,900 + $460,300
$1,060,200
2023
$13,710 (+6.9%)
$562,400 + $447,200
$1,009,600
2022
$12,831 (+14.4%)
$517,400 + $451,000
$968,400
2021
$11,217 (+1.9%)
$479,900 + $435,800
$915,700
2020
$11,009 (+2.3%)
$479,900 + $426,900
$906,800
2019
$10,761 (−0.5%)
$479,900 + $355,600
$835,500
2018
$10,810 (−1.2%)
$479,900 + $322,600
$802,500
2017
$10,938 (+7.7%)
$464,900 + $322,600
$787,500
2016
$10,157 (+8.5%)
$419,900 + $322,600
$742,500
2015
$9,362 (+2.9%)
$378,700 + $244,200
$622,900
2014
$9,094 (+1.9%)
$363,700 + $244,200
$607,900
2013
$8,924 (+5.2%)
$363,700 + $244,200
$607,900
2012
$8,483 (+13.6%)
$344,900 + $244,200
$589,100
2011
$7,465 (+3.9%)
$311,200 + $225,100
$536,300
2010
$7,183 (−5.1%)
$311,200 + $228,500
$539,700
2009
$7,567
$353,500 + $264,700
$618,200
Tax history for 20 Alden Rd
Year
Property tax
Land + Additions
Assessment*
2026
$14,045 (+7.2%)
$607,700 + $543,500
$1,151,200
2025
$13,106 (+5.7%)
$607,700 + $514,400
$1,122,100
2024
$12,404 (−9.5%)
$599,900 + $460,300
$1,060,200
2023
$13,710 (+6.9%)
$562,400 + $447,200
$1,009,600
2022
$12,831 (+14.4%)
$517,400 + $451,000
$968,400
2021
$11,217 (+1.9%)
$479,900 + $435,800
$915,700
2020
$11,009 (+2.3%)
$479,900 + $426,900
$906,800
2019
$10,761 (−0.5%)
$479,900 + $355,600
$835,500
2018
$10,810 (−1.2%)
$479,900 + $322,600
$802,500
2017
$10,938 (+7.7%)
$464,900 + $322,600
$787,500
2016
$10,157 (+8.5%)
$419,900 + $322,600
$742,500
2015
$9,362 (+2.9%)
$378,700 + $244,200
$622,900
2014
$9,094 (+1.9%)
$363,700 + $244,200
$607,900
2013
$8,924 (+5.2%)
$363,700 + $244,200
$607,900
2012
$8,483 (+13.6%)
$344,900 + $244,200
$589,100
2011
$7,465 (+3.9%)
$311,200 + $225,100
$536,300
2010
$7,183 (−5.1%)
$311,200 + $228,500
$539,700
2009
$7,567
$353,500 + $264,700
$618,200
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Basement Information
Basement Sq. Ft: 1,236
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Hot Water
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Duplex
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Hip
Property Information
Subdivision Name: WATERTOWN
Living Sq. Ft: 2,765
Gross Sq. Ft: 5,558
# of Units: 2
# of Stories: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,098
Municipality Name: WATERTOWN
Acres: 0.14
Zoning Code: T
State Use Description: 2-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 2,765
Stories: 3.0
Lot Size: 6,098 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1900
Year Renovated: —
County: Middlesex County
APN: 1414413S
Home facts updated by county records on Jul 30, 2026
Around this home
Schools
J.R. Lowell Elementary School
Public PreK-5 • Assigned • 0.5mi
8/10
Watertown Middle School
Public 6-8 • Assigned • 1.0mi
7/10
Watertown High School
Public 9-12 • Assigned • 1.1mi
6/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Watertown's urban-suburban feeling paired with its proximity to Cambridge & Boston have caused it to rapidly transform into a destination for home buyers. Historically a manufacturing city, it has changed into a restaurant, shopping, and biotech hub...
with a completely built-out residential landscape.