22 Prospect St is a 3,000 square foot multi-family home on a 7,405 square foot lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $1,116,947.
Multi-familyProperty Type
1960Year Built
7,405 sq ftLot Size
$372Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,116,947
$45K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.9% higher than the average sale price ($1.11M) 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
$13,376 (+7.7%)
$490,700 + $605,700
$1,096,400
2025
$12,419 (+9.2%)
$490,700 + $572,600
$1,063,300
2024
$11,374 (−11.2%)
$483,800 + $488,300
$972,100
2023
$12,813 (+5.0%)
$460,700 + $482,800
$943,500
2022
$12,199 (+12.0%)
$437,700 + $483,000
$920,700
2021
$10,889 (+3.8%)
$422,300 + $466,600
$888,900
2020
$10,490 (+6.0%)
$407,000 + $457,100
$864,100
2019
$9,892 (+1.5%)
$391,600 + $376,400
$768,000
2018
$9,744 (+4.8%)
$383,900 + $339,500
$723,400
2017
$9,302 (+3.9%)
$330,200 + $339,500
$669,700
2016
$8,951 (+8.5%)
$314,800 + $339,500
$654,300
2015
$8,251 (+4.9%)
$291,800 + $257,200
$549,000
2014
$7,869 (+1.9%)
$268,800 + $257,200
$526,000
2013
$7,722 (+5.4%)
$268,800 + $257,200
$526,000
2012
$7,325 (+0.2%)
$251,500 + $257,200
$508,700
2011
$7,309 (+1.8%)
$251,500 + $273,600
$525,100
2010
$7,178 (+3.7%)
$264,900 + $274,400
$539,300
2009
$6,920
$275,100 + $290,300
$565,400
Tax history for 22 Prospect St
Year
Property tax
Land + Additions
Assessment*
2026
$13,376 (+7.7%)
$490,700 + $605,700
$1,096,400
2025
$12,419 (+9.2%)
$490,700 + $572,600
$1,063,300
2024
$11,374 (−11.2%)
$483,800 + $488,300
$972,100
2023
$12,813 (+5.0%)
$460,700 + $482,800
$943,500
2022
$12,199 (+12.0%)
$437,700 + $483,000
$920,700
2021
$10,889 (+3.8%)
$422,300 + $466,600
$888,900
2020
$10,490 (+6.0%)
$407,000 + $457,100
$864,100
2019
$9,892 (+1.5%)
$391,600 + $376,400
$768,000
2018
$9,744 (+4.8%)
$383,900 + $339,500
$723,400
2017
$9,302 (+3.9%)
$330,200 + $339,500
$669,700
2016
$8,951 (+8.5%)
$314,800 + $339,500
$654,300
2015
$8,251 (+4.9%)
$291,800 + $257,200
$549,000
2014
$7,869 (+1.9%)
$268,800 + $257,200
$526,000
2013
$7,722 (+5.4%)
$268,800 + $257,200
$526,000
2012
$7,325 (+0.2%)
$251,500 + $257,200
$508,700
2011
$7,309 (+1.8%)
$251,500 + $273,600
$525,100
2010
$7,178 (+3.7%)
$264,900 + $274,400
$539,300
2009
$6,920
$275,100 + $290,300
$565,400
*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: 1,148
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Duplex
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Hip
Property Information
Living Sq. Ft: 3,000
Gross Sq. Ft: 4,660
# of Units: 2
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,405
Municipality Name: WATERTOWN
Acres: 0.17
Zoning Code: S-6
State Use Description: 2-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 3,000
Stories: 2.0
Lot Size: 7,405 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1960
Year Renovated: —
County: Middlesex County
APN: 3805427S
Home facts updated by county records on Sep 10, 2026
Around this home
Schools
Cunniff Elementary School
Public PreK-5 • Assigned • 0.4mi
8/10
Watertown Middle School
Public 6-8 • Assigned • 0.7mi
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...