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Leopold Ave, West Islip, NY Property Records

Suffolk County and Islip Town property records for 61 addresses on Leopold Ave, West Islip, NY · Last verified October 2026

Leopold Ave Highlights

Properties 61
Median Sale Price $520,000
Deeds and Mortgages on File 59
Median Price per Sqft $461
Owner Occupied 92%
Median Annual Tax Bill $10,688
Median Year Built 1957
Median Ownership Tenure 10 years

Properties on Leopold Ave

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

8 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$320,000Jul 2006 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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12 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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15 Leopold Ave

1,900 sqft · built 1956 · 0.4 acres

Last Sale Tax Bill Prior Sale Owner Records
$375,000Sep 2017 —Apr 2010 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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16 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$110,000Nov 1994 $13,1052024 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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20 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$356,000Aug 2007 Amount on Record Nov 1994 Owner on Record Owner Occupied AssessorUpdated Aug 2026

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24 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$330,000Jun 2006 $12,8242024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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28 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied AssessorUpdated Oct 2026

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29 Leopold Ave

1,741 sqft · built 1954 · 0.25 acres

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

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32 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2014 $7,8182024 —May 1995 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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33 Leopold Ave

2,060 sqft · built 1960 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$455,000Dec 2018 $14,2982024 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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36 Leopold Ave

1,860 sqft · built 1962 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$520,000Dec 2021 Amount on Record — 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Oct 2026

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37 Leopold Ave

1,397 sqft · built 1960 · 0.25 acres

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

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38 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$435,000May 2023 $10,4422024 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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41 Leopold Ave

1,567 sqft · built 1952 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$165,000Aug 2017 $10,7162024 Amount on Record Mar 2007 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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44 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000Sep 2002 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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45 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$850,000Jun 2024 Amount on Record Apr 2023 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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48 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$212,000Sep 2001 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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49 Leopold Ave

1,366 sqft · built 1950 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$312,000Jan 2018 $10,3222024 Amount on Record Oct 2002 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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52 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$64,000Jun 2001 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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53 Leopold Ave

1,698 sqft · built 1962 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$585,000Nov 2024 Owner on Record Owner Occupied AssessorUpdated Aug 2026

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56 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$232,500Apr 2001 $10,3072024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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57 Leopold Ave

1,066 sqft · built 1959 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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60 Leopold Ave

3,301 sqft · built 1972 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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61 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2009 Amount on Record May 1996 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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64 Leopold Ave

0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$315,000Apr 2026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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65 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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70 Leopold Ave

0.339 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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73 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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74 Leopold Ave

885 sqft · built 1957 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$550,000May 2024 Amount on Record Jun 2017 2 Owners on Record Assessor + 2 DocumentsUpdated Aug 2026

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77 Leopold Ave

2,415 sqft · built 2020 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Mar 2020 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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78 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$650,000Jan 2025 2 Owners on Record AssessorUpdated Aug 2026

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81 Leopold Ave

1,572 sqft · built 1962 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2018 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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82 Leopold Ave

1,636 sqft · built 1956 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Aug 2021 Amount on Record Nov 1995 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

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85 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$267,000Jul 2010 $12,4022024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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86 Leopold Ave

912 sqft · built 1959 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$481,000Sep 2021 $9,2692024 Amount on Record Jul 2016 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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89 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,000Jan 1994 2 Owners on Record Owner Occupied AssessorUpdated Sep 2026

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90 Leopold Ave

1,100 sqft · built 1956 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Aug 2026

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93 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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94 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$152,500Mar 2000 $10,8272024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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97 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$43,000Nov 1999 $9,0482024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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98 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$127,000Sep 1998 $9,8432024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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103 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied AssessorUpdated Aug 2026

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104 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$128,000May 1995 $11,1082024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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108 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,7472024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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109 Leopold Ave

1,764 sqft · built 1949 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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112 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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113 Leopold Ave

1,224 sqft · built 1958 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$565,000Mar 2022 $10,6882024 Amount on Record Jan 2020 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

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115 Leopold Ave

1,904 sqft · built 1948 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$305,000Oct 2016 $11,7002024 Amount on Record May 2007 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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116 Leopold Ave

800 sqft · built 1957 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$460,000Jan 2023 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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117 Leopold Ave

800 sqft · built 1951 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$215,000Sep 2017 $9,6752024 —Apr 2013 2 Owners on Record Assessor + 4 DocumentsUpdated Sep 2026

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121 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Sep 1993 $10,4232024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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128 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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137 Leopold Ave

1,442 sqft · built 1951 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$405,000Sep 2018 $10,7162024 Amount on Record Mar 1998 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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138 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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140 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$120,000Aug 1998 Owner on Record Owner Occupied AssessorUpdated Aug 2026

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141 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$344,900Jan 2014 Amount on Record Oct 1993 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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142 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Mar 2015 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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144 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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145 Leopold Ave

2,153 sqft · built 1952 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$282,500Aug 2019 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

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148 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied AssessorUpdated Aug 2026

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149 Leopold Ave

0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,0392024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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Property Records in Nearby Streets