Neptune Ave, Mastic, NY Property Records

Suffolk County, Brookhaven Town and Babylon Town property records for 69 addresses on Neptune Ave, Mastic, NY · Last verified August 2026

Neptune Ave Highlights

Properties 69
Median Sale Price $385,000
Deeds and Mortgages on File 83
Median Price per Sqft $278
Owner Occupied 78%
Median Annual Tax Bill $7,140
Median Year Built 1972
Median Ownership Tenure 6 years

Properties on Neptune Ave

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

4 Neptune Ave

0.5 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,5352024 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

8 Neptune Ave

4 bd · 1 ba · 1,332 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,980Mar 2002 $3,8782024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

12 Neptune Ave

3 bd · 2 ba · 2,450 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,6322024 1 Name on Record AssessorUpdated Aug 2026

14 Neptune Ave

4 bd · 3 ba · 2,494 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,8722024 1 Name on Record AssessorUpdated Aug 2026

15 Neptune Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,5222024 1 Name on Record AssessorUpdated Aug 2026

18 Neptune Ave

3 bd · 1 ba · 1,104 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,8432024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

19 Neptune Ave

3 bd · 1 ba · 1,156 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$445,200Jun 2023 $6,9992024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

23 Neptune Ave

3 bd · 1 ba · 1,873 sqft · 0.289 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,4392024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

24 Neptune Ave

2 bd · 1 ba · 672 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,9672024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

26 Neptune Ave

3 bd · 1 ba · 1,152 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$178,000Apr 2011 $6,6542024 Amount on Record Dec 2009 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

27 Neptune Ave

2 bd · 1 ba · 716 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$680,000Jun 2024 $2,6242024 Amount on Record Feb 2009 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

30 Neptune Ave

3 bd · 1 ba · 1,261 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$352,500Jan 2018 $7,6782024 Amount on Record Apr 2009 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

31 Neptune Ave

4 bd · 2 ba · 2,156 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$600,000Dec 2025 $7,2102024 Amount on Record Nov 2007 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

34 Neptune Ave

4 bd · 1 ba · 1,295 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$385,000Jan 2023 $8,4452024 Amount on Record Feb 2021 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

35 Neptune Ave

3 bd · 1 ba · 882 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,7592024 2 Names on Record AssessorUpdated Aug 2026

36 Neptune Ave

2 ba · 2,378 sqft · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$15,5102024 2 Names on Record AssessorUpdated Aug 2026

38 Neptune Ave

3 bd · 1 ba · 1,984 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,000Jul 2012 $11,8982024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

39 Neptune Ave

3 bd · 1 ba · 1,740 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$370,000Dec 2020 $7,8122024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

42 Neptune Ave

3 bd · 1 ba · 1,479 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$375,000Aug 2021 $7,2942024 Amount on Record Nov 2020 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

47 Neptune Ave

3 bd · 1 ba · 1,320 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Sep 2020 $6,7762024 Amount on Record Mar 2020 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

48 Neptune Ave

1 bd · 1 ba · 852 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$398,000Apr 2022 $8,2532024 Amount on Record Sep 2021 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

50 Neptune Ave

3 bd · 1 ba · 990 sqft · 0.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$121,000Nov 2002 $6,1432024 Amount on Record Jun 1998 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

61 Neptune Ave

4 bd · 2 ba · 2,021 sqft · 0.5 acres

Last Sale Tax Bill Prior Sale Owner Records
$512,000Jul 2022 $8,5982024 Amount on Record Jun 2004 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

65 Neptune Ave

3 bd · 1 ba · 1,724 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$280,000Jan 2018 $7,9872024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

66 Neptune Ave

3 bd · 2 ba · 1,100 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$190,550Oct 2017 $7,1402024 Amount on Record Oct 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

68 Neptune Ave

3 bd · 1 ba · 1,075 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$310,000Oct 2021 $6,1432024 Amount on Record Mar 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

69 Neptune Ave

3 bd · 1 ba · 1,472 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$216,000Feb 2020 $7,2942024 Amount on Record Apr 1996 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

72 Neptune Ave

2 bd · 1 ba · 672 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$260,000May 2023 $5,7592024 Amount on Record Aug 2021 1 Name on Record Assessor + 3 DocumentsUpdated Aug 2026

73 Neptune Ave

4 bd · 2 ba · 1,728 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,9582024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

74 Neptune Ave

3 bd · 1 ba · 1,033 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$390,000Nov 2022 $5,7592024 Amount on Record Oct 2002 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

76 Neptune Ave

3 bd · 1 ba · 1,008 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$180,094Jun 2017 $6,4882024 Amount on Record Jan 2017 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

77 Neptune Ave

1 ba · 384 sqft · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$449,000Jan 2023 $9,9802024 Amount on Record Aug 2012 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

79 Neptune Ave

2 bd · 1 ba · 728 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$56,700Nov 2016 $4,9922024 Amount on Record Oct 2016 1 Name on Record AssessorUpdated Aug 2026

80 Neptune Ave

3 bd · 1 ba · 1,075 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$108,000Jul 2015 $6,5272024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

84 Neptune Ave

3 bd · 1 ba · 1,075 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$289,159Dec 2015 $7,2942024 Amount on Record May 1995 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

85 Neptune Ave

3 bd · 1 ba · 1,090 sqft · 0.419 acres

Last Sale Tax Bill Prior Sale Owner Records
$280,900Apr 2008 $6,5272024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

87 Neptune Ave

4 bd · 2 ba · 1,430 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Oct 2006 $6,4242024 Amount on Record May 2002 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

91 Neptune Ave

3 bd · 1 ba · 1,224 sqft · 0.419 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,1842024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

94 Neptune Ave

3 bd · 2 ba · 1,137 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$319,900Dec 2007 $6,4242024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

98 Neptune Ave

3 bd · 2 ba · 1,220 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Mar 2023 $7,6392024 Amount on Record Dec 2018 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

99 Neptune Ave

3 bd · 1 ba · 1,402 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Mar 2023 $6,1102024 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

100 Neptune Ave

3 bd · 2 ba · 1,512 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Jun 2022 $8,8292024 Amount on Record Nov 2001 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

104 Neptune Ave

2 bd · 1 ba · 648 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$96,500Nov 2001 $4,8892024 Amount on Record Oct 1995 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

106 Neptune Ave

2 bd · 1 ba · 842 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,7382024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

108 Neptune Ave

3 bd · 1 ba · 1,050 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$240,000May 2021 $8,2532024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

109 Neptune Ave

4 bd · 2 ba · 1,896 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$470,000May 2022 $9,4042024 Amount on Record Jul 2021 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

110 Neptune Ave

3 bd · 1 ba · 936 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$242,500Nov 2019 $3,8412024 Amount on Record Oct 2018 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

111 Neptune Ave

3 bd · 1 ba · 1,119 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$91,000Mar 2016 $7,2172024 Amount on Record Dec 2015 1 Name on Record AssessorUpdated Aug 2026

112 Neptune Ave

4 bd · 1 ba · 1,104 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,9672024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

114 Neptune Ave

3 bd · 1 ba · 1,050 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$280,000Sep 2020 $7,2942024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

115 Neptune Ave

3 bd · 1 ba · 1,082 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,2122024 2 Names on Record AssessorUpdated Aug 2026

116 Neptune Ave

3 bd · 1 ba · 1,102 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$195,000Jan 2008 $3,5782024 Amount on Record Mar 2002 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

117 Neptune Ave

3 bd · 1 ba · 1,050 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,5842024 2 Names on Record AssessorUpdated Aug 2026

118 Neptune Ave

4 bd · 1 ba · 1,425 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,4242024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

119 Neptune Ave

3 bd · 1 ba · 1,074 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$305,000May 2021 $7,2172024 Amount on Record Oct 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

120 Neptune Ave

3 bd · 1 ba · 1,044 sqft · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$268,000Sep 2021 $7,3902024 Amount on Record Dec 2002 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

121 Neptune Ave

5 bd · 2 ba · 1,991 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2023 $7,8692024 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

122 Neptune Ave

2 bd · 1 ba · 558 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,2252024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

123 Neptune Ave

3 bd · 1 ba · 1,074 sqft · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$212,000Jun 2023 Amount on Record Dec 2018 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

124 Neptune Ave

2 bd · 1 ba · 830 sqft · 0.139 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$6,5272024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

125 Neptune Ave

3 bd · 1 ba · 1,075 sqft · 0.139 acres

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

127 Neptune Ave

0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2018 $8,8292024 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

129 Neptune Ave

0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$411,000Aug 2022 $6,5272024 Amount on Record Nov 2010 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

130 Neptune Ave

1 bd · 1 ba · 1,386 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$236,842May 2005 $9,3012024 Amount on Record Sep 2001 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

131 Neptune Ave

0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$385,000Sep 2021 $8,0612024 Amount on Record Jan 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

136 Neptune Ave

3 bd · 2 ba · 1,751 sqft · 0.143 acres

Last Sale Tax Bill Prior Sale Owner Records
$329,990Dec 2006 $8,3422024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

139 Neptune Ave

3 bd · 1 ba · 1,140 sqft · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6162024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

144 Neptune Ave

1 ba · 1,063 sqft · 0.247 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,2722024 1 Name on Record AssessorUpdated Aug 2026

155 Neptune Ave

2 ba · 2,263 sqft · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Jan 2013 $14,9032024 1 Name on Record AssessorUpdated Aug 2026

Wildfire Risk on Neptune Ave

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

Wildfire RiskLow
this street's cells rank at the 7th percentile of exposed land nationally · 17th in New York
Wildfire LikelihoodLow — less than 1 in 10,000 per year
ExposureDirect
2 of 9 cells directly exposed · 7 adjoin burnable vegetation

Property Records in Nearby Streets