Mason St, Somerville, MA Property Records

Middlesex County and Somerville City property records for 14 addresses on Mason St, Somerville, MA · Last verified August 2026

Mason St Highlights

Properties 14
Median Sale Price $1,155,000
Deeds and Mortgages on File 16
Median Price per Sqft $604
Owner Occupied 43%
Median Annual Tax Bill $12,935
Median Year Built 1920
Median Ownership Tenure 8 years

Properties on Mason St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

9 Mason St

4 bd · 2 ba · 2,150 sqft · 0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,8312025 1 Name on Record AssessorUpdated Apr 2026

15 Mason St

6 bd · 3 ba · 2,860 sqft · 0.102 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$195,000Mar 1993 $13,9502025 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

19 Mason St

5 bd · 2 ba · 2,537 sqft · 0.104 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2013 $12,7552025 —Feb 2013 2 Names on Record AssessorUpdated Apr 2026

21 Mason St

3 bd · 2.5 ba · 1,171 sqft · 0.103 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,025,000Mar 2022 $10,3212025 Amount on Record Apr 2016 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

23 Mason St

4 bd · 2.5 ba · 1,337 sqft · 0.103 acres

Last Sale Tax Bill Prior Sale Owner Records
$820,000Nov 2016 $10,4442025 Amount on Record Jan 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

27 Mason St

4 bd · 4 ba · 3,187 sqft · 0.104 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2016 $14,7232025 —Dec 2014 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

31 Mason St

5 bd · 2.5 ba · 2,334 sqft · 0.104 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,155,000Dec 2018 $13,9032025 Amount on Record Aug 2013 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

33 Mason St, #1

3 bd · 1 ba · 1,323 sqft · 0.103 acres

Last Sale Tax Bill Prior Sale Owner Records
$800,000Jun 2019 $9,3632025 Amount on Record May 2013 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

33 Mason St, #2

3 bd · 2 ba · 1,810 sqft · 0.103 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,170,000Apr 2024 $10,8002025 Amount on Record Jan 2020 2 Names on Record Assessor + 3 DocumentsUpdated Jul 2026

34 Mason St

4 bd · 3 ba · 2,356 sqft · 0.117 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$12,9132025 2 Names on Record AssessorUpdated Apr 2026

37 Mason St

4 bd · 2 ba · 2,444 sqft · 0.104 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$12,9352025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

41 Mason St

7 bd · 2 ba · 3,361 sqft · 0.101 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,275,000Oct 2018 $15,2612025 Amount on Record Jan 1983 2 Names on Record Assessor + 4 DocumentsUpdated Apr 2026

45 Mason St

8 bd · 3 ba · 3,302 sqft · 0.083 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,625,000Jul 2024 $15,8352025 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

47 Mason St

7 bd · 4 ba · 3,244 sqft · 0.083 acres

Last Sale Tax Bill Prior Sale Owner Records
$17,0362025 1 Name on Record AssessorUpdated Apr 2026

Wildfire Risk on Mason St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach of burnable land

Property Records in Nearby Streets