As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$13,631 (+7.4%)
$545,300 + $572,000
$1,117,300
2025
$12,695 (+10.5%)
$545,300 + $541,600
$1,086,900
2024
$11,489 (−9.9%)
$543,200 + $438,800
$982,000
2023
$12,745 (+10.2%)
$512,100 + $426,400
$938,500
2022
$11,565 (+13.5%)
$446,200 + $426,600
$872,800
2021
$10,186 (+2.9%)
$419,000 + $412,500
$831,500
2020
$9,901 (+5.2%)
$411,300 + $404,300
$815,600
2019
$9,413 (+0.8%)
$395,700 + $335,100
$730,800
2018
$9,335 (+1.5%)
$388,000 + $305,000
$693,000
2017
$9,194 (+1.5%)
$356,900 + $305,000
$661,900
2016
$9,055 (+9.4%)
$356,900 + $305,000
$661,900
2015
$8,274 (+0.5%)
$318,200 + $232,300
$550,500
2014
$8,235 (+1.9%)
$318,200 + $232,300
$550,500
2013
$8,081 (+8.0%)
$318,200 + $232,300
$550,500
2012
$7,479 (+6.9%)
$287,100 + $232,300
$519,400
2011
$6,995 (+1.8%)
$254,100 + $248,400
$502,500
2010
$6,869 (−1.8%)
$267,700 + $248,400
$516,100
2009
$6,993
$307,300 + $264,000
$571,300
Tax history for 123 Hillside Rd
Year
Property tax
Land + Additions
Assessment*
2026
$13,631 (+7.4%)
$545,300 + $572,000
$1,117,300
2025
$12,695 (+10.5%)
$545,300 + $541,600
$1,086,900
2024
$11,489 (−9.9%)
$543,200 + $438,800
$982,000
2023
$12,745 (+10.2%)
$512,100 + $426,400
$938,500
2022
$11,565 (+13.5%)
$446,200 + $426,600
$872,800
2021
$10,186 (+2.9%)
$419,000 + $412,500
$831,500
2020
$9,901 (+5.2%)
$411,300 + $404,300
$815,600
2019
$9,413 (+0.8%)
$395,700 + $335,100
$730,800
2018
$9,335 (+1.5%)
$388,000 + $305,000
$693,000
2017
$9,194 (+1.5%)
$356,900 + $305,000
$661,900
2016
$9,055 (+9.4%)
$356,900 + $305,000
$661,900
2015
$8,274 (+0.5%)
$318,200 + $232,300
$550,500
2014
$8,235 (+1.9%)
$318,200 + $232,300
$550,500
2013
$8,081 (+8.0%)
$318,200 + $232,300
$550,500
2012
$7,479 (+6.9%)
$287,100 + $232,300
$519,400
2011
$6,995 (+1.8%)
$254,100 + $248,400
$502,500
2010
$6,869 (−1.8%)
$267,700 + $248,400
$516,100
2009
$6,993
$307,300 + $264,000
$571,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Basement Information
Basement Sq. Ft: 1,196
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Type: Steam
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Average
Construction Type: Frame
Exterior Wall: Aluminum Siding
Roof Shape Type: Hip
Property Information
Living Sq. Ft: 2,392
Gross Sq. Ft: 5,102
# of Units: 2
# of Stories: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,841
Municipality Name: WATERTOWN
Acres: 0.18
Zoning Code: T
State Use Description: 2-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 2,392
Stories: 3.0
Lot Size: 7,841 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1925
Year Renovated: —
County: Middlesex County
APN: 3792006S
Home facts updated by county records on Jul 28, 2026
Around this home
Schools
Hosmer Elementary School
Public PreK-5 • Assigned • 0.5mi
7/10
Watertown Middle School
Public 6-8 • Assigned • 1.5mi
7/10
Watertown High School
Public 9-12 • Assigned • 1.6mi
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.