66 Capitol St is a 1,557 square foot house on a 4,792 square foot lot with 3 bedrooms and 1.5 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $851,245.
Single-familyProperty Type
1900Year Built
4,792 sq ftLot Size
$547Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$851,245
$6,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 20.7% lower than the average sale price ($1.07M) 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
$9,326 (+5.9%)
$520,300 + $244,100
$764,400
2025
$8,808 (+8.6%)
$520,300 + $233,800
$754,100
2024
$8,112 (−8.4%)
$491,600 + $201,700
$693,300
2023
$8,853 (+10.8%)
$470,300 + $181,600
$651,900
2022
$7,992 (+10.8%)
$427,500 + $175,700
$603,200
2021
$7,215 (+3.4%)
$413,300 + $175,700
$589,000
2020
$6,977 (+0.6%)
$399,000 + $175,700
$574,700
2019
$6,936 (+4.8%)
$399,000 + $139,500
$538,500
2018
$6,616 (+6.6%)
$370,500 + $120,700
$491,200
2017
$6,205 (+8.7%)
$324,200 + $122,500
$446,700
2016
$5,709 (−0.5%)
$306,400 + $110,900
$417,300
2015
$5,737 (+5.4%)
$270,800 + $110,900
$381,700
2014
$5,442 (+1.9%)
$252,900 + $110,900
$363,800
2013
$5,341 (+6.1%)
$252,900 + $110,900
$363,800
2012
$5,034 (+16.1%)
$238,700 + $110,900
$349,600
2011
$4,335 (+0.6%)
$233,300 + $78,100
$311,400
2010
$4,311 (−2.9%)
$245,800 + $78,100
$323,900
2009
$4,442
$263,600 + $99,300
$362,900
Tax history for 66 Capitol St
Year
Property tax
Land + Additions
Assessment*
2026
$9,326 (+5.9%)
$520,300 + $244,100
$764,400
2025
$8,808 (+8.6%)
$520,300 + $233,800
$754,100
2024
$8,112 (−8.4%)
$491,600 + $201,700
$693,300
2023
$8,853 (+10.8%)
$470,300 + $181,600
$651,900
2022
$7,992 (+10.8%)
$427,500 + $175,700
$603,200
2021
$7,215 (+3.4%)
$413,300 + $175,700
$589,000
2020
$6,977 (+0.6%)
$399,000 + $175,700
$574,700
2019
$6,936 (+4.8%)
$399,000 + $139,500
$538,500
2018
$6,616 (+6.6%)
$370,500 + $120,700
$491,200
2017
$6,205 (+8.7%)
$324,200 + $122,500
$446,700
2016
$5,709 (−0.5%)
$306,400 + $110,900
$417,300
2015
$5,737 (+5.4%)
$270,800 + $110,900
$381,700
2014
$5,442 (+1.9%)
$252,900 + $110,900
$363,800
2013
$5,341 (+6.1%)
$252,900 + $110,900
$363,800
2012
$5,034 (+16.1%)
$238,700 + $110,900
$349,600
2011
$4,335 (+0.6%)
$233,300 + $78,100
$311,400
2010
$4,311 (−2.9%)
$245,800 + $78,100
$323,900
2009
$4,442
$263,600 + $99,300
$362,900
*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: 702
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Colonial
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 1,557
Gross Sq. Ft: 2,884
# of Units: 3
# of Stories: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,792
Municipality Name: WATERTOWN
Acres: 0.11
Zoning Code: T
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.5
Sq. Ft.: 1,557
Stories: 3.0
Lot Size: 4,792 square feet
Style: Single Family Residential
Year Built: 1900
Year Renovated: —
County: Middlesex County
APN: 3746075S
Home facts updated by county records on Sep 10, 2026
Around this home
Schools
Hosmer Elementary School
Public PreK-5 • Assigned • 1.2mi
7/10
Watertown Middle School
Public 6-8 • Assigned • 0.8mi
7/10
Watertown High School
Public 9-12 • Assigned • 0.7mi
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.
Watertown’s market has exploded in recent years, with high home prices. Located close to Boston, it offers the perfect balance of a seamless urban commute and the tranquility of suburban living. Enhanced by flexible MBTA bus options and its location...