86 Riverside St is a 2,360 square foot condo with 5 bedrooms and 2.5 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $858,787.
CondoProperty Type
1886Year Built
$364Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$858,787
$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 20.7% lower than the average sale price ($1.08M) 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*
2025
$8,479 (+13.1%)
$725,900
2024
$7,500 (−9.8%)
$641,000
2023
$8,312 (+10.7%)
$612,100
2022
$7,507 (−1.7%)
$566,600
2021
$7,639 (+1.8%)
$623,600
2020
$7,507 (+4.6%)
$618,400
2019
$7,179 (+3.4%)
$557,400
2018
$6,941 (+1.2%)
$515,300
2017
$6,859 (+10.7%)
$493,800
2016
$6,197 (−7.7%)
$453,000
2015
$6,712 (+6.6%)
$446,600
2014
$6,295 (+5.1%)
$420,800
2013
$5,988 (+1.9%)
$407,900
2012
$5,874 (+3.5%)
$407,900
2011
$5,678 (+4.6%)
$407,900
2010
$5,429 (+6.0%)
$407,900
2009
$5,120
$418,300
Tax history for 86 Riverside St
Year
Property tax
Land + Additions
Assessment*
2025
$8,479 (+13.1%)
$725,900
2024
$7,500 (−9.8%)
$641,000
2023
$8,312 (+10.7%)
$612,100
2022
$7,507 (−1.7%)
$566,600
2021
$7,639 (+1.8%)
$623,600
2020
$7,507 (+4.6%)
$618,400
2019
$7,179 (+3.4%)
$557,400
2018
$6,941 (+1.2%)
$515,300
2017
$6,859 (+10.7%)
$493,800
2016
$6,197 (−7.7%)
$453,000
2015
$6,712 (+6.6%)
$446,600
2014
$6,295 (+5.1%)
$420,800
2013
$5,988 (+1.9%)
$407,900
2012
$5,874 (+3.5%)
$407,900
2011
$5,678 (+4.6%)
$407,900
2010
$5,429 (+6.0%)
$407,900
2009
$5,120
$418,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Townhouse
Construction Type: Frame
Exterior Wall: Shingle
Roof Shape Type: Gable
Property Information
Subdivision Name: 86-88 RIVERSIDE STREET CONDO
Living Sq. Ft: 2,360
Gross Sq. Ft: 2,360
# of Units: 1
# of Stories: 2
Lot Information
# of Buildings: 1
Municipality Name: WATERTOWN
Zoning Code: T
State Use Description: CONDOMINIUM
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 5
Baths: 2.5
Sq. Ft.: 2,360
Stories: 2.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1886
Year Renovated: —
County: Middlesex County
APN: 3927956
Home facts updated by county records on Jul 16, 2026
Around this home
Schools
Hosmer Elementary School
Public PreK-5 • Assigned • 0.7mi
7/10
Watertown Middle School
Public 6-8 • Assigned • 0.9mi
7/10
Watertown High School
Public 9-12 • Assigned • 0.9mi
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.