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Garretson Ave, Islip, NY Property Records

Suffolk County and Islip Town property records for 34 addresses on Garretson Ave, Islip, NY · Last verified August 2026

Garretson Ave Highlights

Properties 34
Median Sale Price $540,000
Deeds and Mortgages on File 48
Median Price per Sqft $323
Owner Occupied 91%
Median Annual Tax Bill $11,478
Median Year Built 1954
Median Ownership Tenure 17 years

Properties on Garretson Ave

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

5 Garretson Ave

0.25 acres

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

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6 Garretson Ave

0.569 acres

Last Sale Tax Bill Prior Sale Owner Records
$495,000Jul 2014 Amount on Record Apr 2001 1 Name on Record Owner Occupied AssessorUpdated May 2026

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10 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$815,000Sep 2025 Amount on Record Jul 2016 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

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11 Garretson Ave

0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$130,000Feb 1996 Amount on Record Jul 1995 1 Name on Record Owner Occupied AssessorUpdated May 2026

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14 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$385,000Jun 2014 Amount on Record Oct 1997 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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17 Garretson Ave

0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$162,000Jul 1999 $16,3232024 Amount on Record Nov 1997 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

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24 Garretson Ave

1,152 sqft · Built 1952 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Mar 2020 $10,3142024 Amount on Record Jun 2015 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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30 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$138,000Sep 1993 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

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33 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$219,000Dec 2001 $11,6192024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

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34 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$245,000Sep 2000 $14,7502024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

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43 Garretson Ave

1,944 sqft · Built 1985 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$364,000Jun 2017 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated May 2026

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51 Garretson Ave

0.23 acres

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

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54 Garretson Ave

0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$190,000May 1995 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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55 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$296,800May 2009 $10,7672024 Amount on Record Nov 1995 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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56 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$120,000Oct 1996 $12,9362024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

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60 Garretson Ave

2,444 sqft · Built 1957 · 0.23 acres · Garage

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

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63 Garretson Ave

0.23 acres

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

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71 Garretson Ave

2,030 sqft · Built 1954 · 0.23 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$650,000Sep 2025 $13,5552024 Amount on Record Nov 2020 2 Names on Record Assessor + 4 DocumentsUpdated Aug 2026

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72 Garretson Ave

1,515 sqft · Built 1943 · 0.23 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$490,000Jan 2022 $10,4082024 Amount on Record Jan 2013 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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77 Garretson Ave

1,128 sqft · Built 1947 · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$389,000Jun 2006 $9,4642024 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

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84 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jan 2004 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

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88 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Oct 2016 $13,1772024 Amount on Record Dec 1996 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

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91 Garretson Ave

0.23 acres

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

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94 Garretson Ave

0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$114,500Aug 1997 $5,2952024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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96 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$540,000Jan 2023 $10,4502024 Amount on Record Nov 2004 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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97 Garretson Ave

0.169 acres

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

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110 Garretson Ave

0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Mar 1999 $10,8902024 Amount on Record Aug 1998 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

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118 Garretson Ave

1,456 sqft · Built 1954 · 0.23 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$520,000Jul 2021 $11,4782024 Amount on Record May 1994 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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119 Garretson Ave

0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$560,000May 2023 $12,7682024 Amount on Record Dec 2016 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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123 Garretson Ave

1,248 sqft · Built 1960 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$225,000May 2017 $10,1882024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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128 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,3562024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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129 Garretson Ave

1,080 sqft · Built 1959 · 0.169 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$410,000Nov 2021 $11,7932024 Amount on Record Mar 1999 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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136 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$380,000Sep 2004 Amount on Record Jan 1996 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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137 Garretson Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,000Feb 1998 Amount on Record Jan 1997 1 Name on Record Owner Occupied AssessorUpdated May 2026

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Wildfire Risk on Garretson Ave

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