Mountain Ave, Somerville, NJ Property Records

Somerset County and Somerville Borough property records for 41 addresses on Mountain Ave, Somerville, NJ · Last verified August 2026

Mountain Ave Highlights

Properties 41
Median Sale Price $590,000
Deeds and Mortgages on File 33
Median Price per Sqft $230
Owner Occupied 63%
Median Annual Tax Bill $13,118
Median Year Built 1928
Median Ownership Tenure 15 years

Properties on Mountain Ave

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

1 Mountain Ave

3.01 acres

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

12 Mountain Ave

0.334 acres

Last Sale Tax Bill Prior Sale Owner Records
$725,000Apr 2016 $32,1142025 1 Name on Record AssessorUpdated Jul 2026

14 Mountain Ave, #16

2,022 sqft · Built 1920 · 0.22 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$14,6152025 2 Names on Record AssessorUpdated Jul 2026

18 Mountain Ave

1,640 sqft · Built 1900 · 0.142 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$325,000Feb 2024 $10,8302025 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

20 Mountain Ave

2,010 sqft · Built 1910 · 0.086 acres

Last Sale Tax Bill Prior Sale Owner Records
$192,000Mar 2010 $10,9242025 Amount on Record Oct 2009 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

21 Mountain Ave

2,379 sqft · Built 1895 · 0.138 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$350,000Aug 2018 $12,6782025 —Nov 2017 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

35 Mountain Ave, #41

5,900 sqft · Built 1900 · 4.24 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2018 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

60 Mountain Ave

3,658 sqft · Built 1946 · 0.262 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$560,000Nov 2020 $18,8412025 Amount on Record Aug 2011 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

64 Mountain Ave

2,344 sqft · Built 1926 · 0.164 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$15,1532025 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

68 Mountain Ave

2,391 sqft · Built 1940 · 0.239 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$550,000Jul 2025 $13,8402025 —Jul 2020 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

80 Mountain Ave

4,046 sqft · Built 1900 · 0.39 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$850,000Dec 2021 $28,8222025 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

99 Mountain Ave

2,096 sqft · Built 1928 · 0.134 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$385,000Sep 2018 $14,9862025 Amount on Record Jul 2015 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

101 Mountain Ave

1,504 sqft · Built 1928 · 0.138 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$175,000May 1997 $11,9762025 —Jun 1996 1 Name on Record AssessorUpdated Jul 2026

102 Mountain Ave

1,613 sqft · Built 1910 · 0.135 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$211,800Oct 2001 $12,0942025 Amount on Record Dec 1992 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

103 Mountain Ave

1,648 sqft · Built 1928 · 0.13 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$316,000Sep 2011 $11,9802025 —Sep 2011 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

107 Mountain Ave

1,304 sqft · Built 1940 · 0.141 acres

Last Sale Tax Bill Prior Sale Owner Records
$392,000Apr 2008 $12,7062025 Amount on Record Apr 2007 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

108 Mountain Ave

2,535 sqft · Built 1915 · 0.285 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000Aug 2016 $15,8432025 Amount on Record Jul 2005 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

110 Mountain Ave

1,775 sqft · Built 1946 · 0.177 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$176,000Jul 1997 $12,3472025 Amount on Record Feb 1992 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

111 Mountain Ave

2,230 sqft · Built 1928 · 0.12 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Jun 1994 $14,7862025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

115 Mountain Ave

1,248 sqft · Built 1914 · 0.157 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$155,000Nov 2016 $10,3652025 Amount on Record Dec 2012 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

120 Mountain Ave

2,119 sqft · Built 1930 · 0.246 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$278,000Jul 2003 $13,1872025 Amount on Record Jul 1996 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

126 Mountain Ave, #128

3,248 sqft · Built 1930 · 0.128 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$400,900Jul 2011 $16,3532025 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

127 Mountain Ave

1,684 sqft · Built 1888 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 1993 $11,9762025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

130 Mountain Ave, #132

2,940 sqft · Built 1930 · 0.133 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$500,000Apr 2005 $15,8392025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

134 Mountain Ave

1,690 sqft · Built 1930 · 0.284 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$315,000Sep 2013 $13,1182025 Amount on Record Nov 2007 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

135 Mountain Ave

1,590 sqft · Built 1963 · 0.16 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$357,500Jul 2019 $12,6532025 Amount on Record Mar 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

138 Mountain Ave

1,730 sqft · Built 1938 · 0.261 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$157,500Jul 1998 $13,0532025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

141 Mountain Ave

1,174 sqft · Built 1950 · 0.229 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$136,000Jul 1995 $10,5562025 —Aug 2009 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

142 Mountain Ave

1,506 sqft · Built 1930 · 0.234 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$11,5972025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

145 Mountain Ave

1,496 sqft · Built 1927 · 0.172 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$11,2252025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

146 Mountain Ave

1,804 sqft · Built 1930 · 0.195 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$590,000Jun 2022 $13,1792025 Amount on Record Jul 2021 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

150 Mountain Ave

1,522 sqft · Built 1940 · 0.195 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$285,000Dec 2003 $12,3102025 1 Name on Record AssessorUpdated Jul 2026

153 Mountain Ave

1,496 sqft · Built 1926 · 0.172 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$66,500Sep 1980 $10,7482025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

154 Mountain Ave

1,574 sqft · Built 1930 · 0.195 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$389,000Apr 2021 $11,6782025 Amount on Record Mar 1995 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

156 Mountain Ave

1,992 sqft · Built 1930 · 0.44 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$210,000Sep 1996 $14,3302025 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

165 Mountain Ave

5.03 acres

Last Sale Tax Bill Prior Sale Owner Records
$22,0922025 1 Name on Record AssessorUpdated Jul 2026
Last Sale Tax Bill Prior Sale Owner Records
—Apr 2008 $1,1522025 1 Name on Record AssessorUpdated Jul 2026
Last Sale Tax Bill Prior Sale Owner Records
$14,100,000Apr 2025 $85,5822025 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

221 Mountain Ave

1.66 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,100,000Apr 2025 $66,5652025 1 Name on Record AssessorUpdated Jul 2026

245 Mountain Ave, #251

30,784 sqft · 1.97 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,010,000Mar 2014 $98,8832025 —Feb 2007 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

259 Mountain Ave

0.513 acres

Last Sale Tax Bill Prior Sale Owner Records
$262,500Apr 1998 $23,1482025 Amount on Record Jul 1989 1 Name on Record AssessorUpdated Jul 2026

Wildfire Risk on Mountain Ave

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

Wildfire Risk to HomesLow
this street's cells rank at the 16th percentile of exposed land nationally · 30th in New Jersey
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
2 of 7 cells directly exposed · 5 adjoin burnable vegetation

Property Records in Nearby Streets