Mountainside Rd, Mendham, NJ Property Records

Morris County and Mendham Township property records for 87 addresses on Mountainside Rd, Mendham, NJ · Last verified August 2026

Mountainside Rd Highlights

Properties 87
Median Sale Price $975,000
Deeds and Mortgages on File 118
Median Price per Sqft $346
Owner Occupied 80%
Median Annual Tax Bill $15,695
Median Year Built 1971
Median Ownership Tenure 10 years

Properties on Mountainside Rd

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

1 Mountainside Rd

2,932 sqft · Built 1800 · 1.96 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,040,000Jun 2006 $14,8892024 Amount on Record Sep 1997 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

3 Mountainside Rd

1,904 sqft · Built 1825 · 1.24 acres

Last Sale Tax Bill Prior Sale Owner Records
$790,000Nov 2025 $12,0912024 —Apr 2024 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

4 Mountainside Rd

2,496 sqft · Built 1973 · 1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$730,000May 2022 $14,6392024 Amount on Record Sep 2000 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

5 Mountainside Rd

2,345 sqft · Built 1951 · 0.712 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,6642024 1 Name on Record Assessor + 3 DocumentsUpdated Jul 2026

8 Mountainside Rd

2,762 sqft · Built 1973 · 1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$15,7762024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

12 Mountainside Rd

2,282 sqft · Built 1973 · 1.5 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$645,000Mar 2020 $14,7822024 Amount on Record Aug 2013 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

16 Mountainside Rd

2,424 sqft · Built 1973 · 1.6 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$755,000Aug 2018 $15,8972024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

20 Mountainside Rd

3,116 sqft · Built 1972 · 1.7 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$426,000Apr 2018 $18,1672024 Amount on Record Aug 2011 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

21 Mountainside Rd

2,506 sqft · Built 1972 · 3 acres

Last Sale Tax Bill Prior Sale Owner Records
$753,500Sep 2017 $14,4932024 Amount on Record Nov 2003 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

24 Mountainside Rd

2,390 sqft · Built 1973 · 1.6 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$708,000Sep 2012 $15,3262024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

27 Mountainside Rd

7,558 sqft · Built 2002 · 3.01 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,250,000Oct 2014 $36,3522024 Amount on Record Apr 2000 1 Name on Record AssessorUpdated Jul 2026

28 Mountainside Rd

2,666 sqft · Built 1973 · 1.7 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$775,000Oct 2014 $16,6842024 Amount on Record Apr 2001 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

32 Mountainside Rd

2,480 sqft · Built 1973 · 1.7 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$556,000Jan 2001 $14,6672024 Amount on Record Oct 1996 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

36 Mountainside Rd

2,386 sqft · Built 1973 · 1.7 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$745,000Dec 2019 $15,9972024 Amount on Record Dec 2007 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

39 Mountainside Rd

4,641 sqft · Built 1971 · 3.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$664,500Jan 2008 $17,8572024 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

40 Mountainside Rd

2,676 sqft · Built 1974 · 1.8 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$650,000Oct 2003 $16,0072024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

44 Mountainside Rd

4,993 sqft · Built 1994 · 1.8 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,595,000Aug 2024 $24,6002024 Amount on Record Apr 2017 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

48 Mountainside Rd

2,922 sqft · Built 1973 · 1.5 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,050,000Aug 2023 $17,3582024 Amount on Record Dec 2004 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

52 Mountainside Rd

2,362 sqft · Built 1973 · 1.4 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$670,500Nov 2010 $14,1472024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

55 Mountainside Rd

3,331 sqft · Built 1976 · 3.02 acres

Last Sale Tax Bill Prior Sale Owner Records
$597,400Nov 2014 $15,6722024 Amount on Record Sep 1996 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

56 Mountainside Rd

2,674 sqft · Built 1973 · 1.4 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,119,000Jun 2026 $14,8022024 Amount on Record Dec 2024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

60 Mountainside Rd

2,612 sqft · Built 1973 · 1.6 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$862,500Jul 2005 $16,0122024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

63 Mountainside Rd

2,192 sqft · Built 1974 · 3.05 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Dec 2002 $12,6392024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

64 Mountainside Rd

3,136 sqft · Built 1973 · 1.6 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$555,000Apr 2000 $17,7072024 1 Name on Record Assessor + 4 DocumentsUpdated Jul 2026

68 Mountainside Rd

2,272 sqft · Built 1969 · 1.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$560,000Sep 2019 $14,9522024 Amount on Record Jan 2002 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

72 Mountainside Rd

3,246 sqft · Built 2021 · 1.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$975,000Oct 2021 $19,0752024 Amount on Record Jan 2020 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

73 Mountainside Rd

2,052 sqft · Built 1978 · 3.19 acres

Last Sale Tax Bill Prior Sale Owner Records
$590,000Jul 2022 $13,1532024 Amount on Record Aug 1994 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

78 Mountainside Rd

2,331 sqft · Built 1940 · 2.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$760,000Aug 2020 $14,4252024 Amount on Record Jan 2020 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

81 Mountainside Rd

4,060 sqft · Built 1832 · 4.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$665,000Sep 2017 $15,6722024 Amount on Record Dec 2013 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

88 Mountainside Rd

10.5 acres

Last Sale Tax Bill Prior Sale Owner Records
$445,000Dec 2015 1 Name on Record AssessorUpdated Jul 2026

98 Mountainside Rd

2,580 sqft · Built 1957 · 2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$325,000Dec 1994 $17,0772024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

101 Mountainside Rd

3,567 sqft · Built 1957 · 3.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,219,500Sep 2022 $19,5212024 Amount on Record Apr 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

102 Mountainside Rd

3,424 sqft · Built 2009 · 2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$548,000Sep 2007 $20,9102024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

104 Mountainside Rd

2,704 sqft · Built 1957 · 2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$411,950Jan 1996 $15,2052024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

107 Mountainside Rd

2,708 sqft · Built 1957 · 4.68 acres

Last Sale Tax Bill Prior Sale Owner Records
$664,000Jul 2018 $14,1842024 Amount on Record Aug 1995 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

108 Mountainside Rd

4,380 sqft · Built 2007 · 2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,800,000Jun 2023 $26,1382024 Amount on Record Mar 2019 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

112 Mountainside Rd

2,764 sqft · Built 1957 · 1.9 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$283,000Jan 1994 $15,6952024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

116 Mountainside Rd

3,473 sqft · Built 1960 · 1.8 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$17,4732024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

120 Mountainside Rd

1,092 sqft · Built 1950 · 2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$835,000Jan 2026 $11,8822024 Amount on Record Jun 2020 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

121 Mountainside Rd

2,018 sqft · Built 1957 · 3.36 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Nov 2011 $12,2892024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

124 Mountainside Rd

3,230 sqft · Built 1940 · 1.76 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$575,000Jan 2010 $14,6102024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

130 Mountainside Rd

3,190 sqft · Built 1968 · 2.5 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$610,000Jun 2002 $18,8632024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

131 Mountainside Rd

1,361 sqft · Built 1957 · 3.36 acres

Last Sale Tax Bill Prior Sale Owner Records
$620,000Nov 2004 $10,7632024 Amount on Record Sep 2004 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

136 Mountainside Rd

1,468 sqft · Built 1920 · 1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$574,000Sep 2022 $11,4862024 Amount on Record Jan 2003 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

145 Mountainside Rd

1,522 sqft · Built 1957 · 2.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Mar 2000 $11,5432024 Amount on Record May 1999 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

146 Mountainside Rd

5,920 sqft · Built 2005 · 6.16 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,775,000Oct 2025 $32,9202024 Amount on Record Jun 2009 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

149 Mountainside Rd

2,422 sqft · Built 1910 · 0.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$710,000Aug 2012 $12,3882024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

151 Mountainside Rd

2,840 sqft · Built 1890 · 0.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,0152024 2 Names on Record AssessorUpdated Jul 2026

157 Mountainside Rd

2,458 sqft · Built 1760 · 5.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Feb 2022 $11,5392024 Amount on Record Sep 2015 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

159 Mountainside Rd

3,217 sqft · Built 1830 · 2.48 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2014 $15,0932024 —Oct 1995 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

160 Mountainside Rd

3,613 sqft · Built 1945 · 1.71 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$439,000Jul 2002 $18,3372024 Amount on Record Sep 2000 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

170 Mountainside Rd

1,068 sqft · Built 1950 · 3 acres

Last Sale Tax Bill Prior Sale Owner Records
$12,1992024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

171 Mountainside Rd

1,046 sqft · Built 1955 · 1.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$406,000May 2023 $8,7842024 Amount on Record Jun 2022 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

174 Mountainside Rd

1,126 sqft · Built 1947 · 0.78 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$326,000Sep 2016 $8,9792024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

175 Mountainside Rd

3,450 sqft · Built 1957 · 1.82 acres

Last Sale Tax Bill Prior Sale Owner Records
$17,7292024 2 Names on Record AssessorUpdated Jul 2026

176 Mountainside Rd

3,960 sqft · Built 1997 · 1.27 acres

Last Sale Tax Bill Prior Sale Owner Records
$949,900Apr 2017 $22,9542024 Amount on Record Sep 2004 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

179 Mountainside Rd

1,662 sqft · Built 1927 · 0.78 acres

Last Sale Tax Bill Prior Sale Owner Records
$299,900Jan 1999 $10,1942024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

183 Mountainside Rd

3,967 sqft · Built 1928 · 1.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,8802024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

189 Mountainside Rd

3,019 sqft · Built 1773 · 0.9 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Feb 2011 $13,2372024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

190 Mountainside Rd

2,568 sqft · Built 1968 · 1.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,5802024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

193 Mountainside Rd

4,236 sqft · Built 1880 · 4.81 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,468,000Mar 2026 $25,1612024 Amount on Record Apr 1994 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

194 Mountainside Rd

3,522 sqft · Built 1969 · 1.1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$480,000Sep 1994 $18,2482024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

200 Mountainside Rd

1,444 sqft · Built 1906 · 2.56 acres

Last Sale Tax Bill Prior Sale Owner Records
$900,000Feb 2026 $8,6102024 Amount on Record Nov 2025 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

210 Mountainside Rd

4,416 sqft · Built 1920 · 1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$390,000Aug 2022 $18,7582024 Amount on Record Jul 2022 2 Names on Record Assessor + 3 DocumentsUpdated Aug 2026

211 Mountainside Rd

4,742 sqft · Built 1888 · 4.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,426,000Jun 2025 $19,0472024 Amount on Record Feb 2015 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026
Last Sale Tax Bill Prior Sale Owner Records
—Oct 2006 $3492024 2 Names on Record Assessor + 4 DocumentsUpdated Jul 2026

225 Mountainside Rd

4,348 sqft · Built 2024 · 3.8 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,7872024 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

226 Mountainside Rd

11,288 sqft · Built 1990 · 3 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,150,000Oct 1999 $59,1882024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

227 Mountainside Rd

4,351 sqft · Built 2008 · 2.8 acres

Last Sale Tax Bill Prior Sale Owner Records
$785,000May 2007 $23,3742024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

229 Mountainside Rd

5,441 sqft · Built 1990 · 1.43 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2004 $28,7142024 Amount on Record Mar 2003 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

230 Mountainside Rd

3,116 sqft · Built 1986 · 2.11 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,124,500Jun 2021 $30,2432024 Amount on Record Nov 2018 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

235 Mountainside Rd

4,438 sqft · Built 1960 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,7432024 1 Name on Record AssessorUpdated Aug 2026

239 Mountainside Rd

1,643 sqft · Built 1827 · 7.33 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2023 $8,1382022 1 Name on Record Assessor + 4 DocumentsUpdated Apr 2024

240 Mountainside Rd

6,871 sqft · Built 2004 · 3.08 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$2,515,000Jul 2023 $46,0292024 Amount on Record May 2002 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

241 Mountainside Rd

3,135 sqft · Built 1790 · 1 acres

Last Sale Tax Bill Prior Sale Owner Records
$770,000Aug 2023 $14,3142024 Amount on Record Sep 2016 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

243 Mountainside Rd

1,881 sqft · Built 2025 · 1 acres

Last Sale Tax Bill Prior Sale Owner Records
$309,900Sep 2019 $5,5412024 Amount on Record Dec 2007 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

250 Mountainside Rd

5,136 sqft · Built 1937 · 1.5 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,425,000Apr 2022 $32,0832024 Amount on Record Sep 1995 2 Names on Record AssessorUpdated Jul 2026

251 Mountainside Rd

9,372 sqft · Built 1906 · 4.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$34,9192024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

260 Mountainside Rd

18.9 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,425,000Dec 2021 $2882024 2 Names on Record AssessorUpdated Jul 2026

265 Mountainside Rd

3,036 sqft · Built 1979 · 5.07 acres

Last Sale Tax Bill Prior Sale Owner Records
$580,000May 2012 $13,1222024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

270 Mountainside Rd

4,130 sqft · Built 1985 · 3.32 acres

Last Sale Tax Bill Prior Sale Owner Records
$22,4602024 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

280 Mountainside Rd

3,323 sqft · Built 1976 · 3.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$715,000Oct 2011 $19,7782024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

283 Mountainside Rd

2,994 sqft · Built 1981 · 3.07 acres

Last Sale Tax Bill Prior Sale Owner Records
$615,000Aug 2014 $14,6742024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

289 Mountainside Rd

3,518 sqft · Built 1977 · 3.17 acres

Last Sale Tax Bill Prior Sale Owner Records
$780,000Aug 2020 $15,8782024 Amount on Record Dec 2012 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

290 Mountainside Rd

5,365 sqft · Built 1973 · 3.08 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,300,000May 2026 $30,0642024 Amount on Record Mar 2014 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

293 Mountainside Rd

5,374 sqft · Built 1992 · 5.17 acres

Last Sale Tax Bill Prior Sale Owner Records
$514,900Jul 1994 $29,1592024 1 Name on Record AssessorUpdated Jul 2026

300 Mountainside Rd

4,259 sqft · Built 2006 · 3.2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$725,000Feb 2005 $25,4462024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

Property Records in Nearby Streets