Gwynn St, Babylon, NY Property Records

Suffolk County and Babylon Town property records for 19 addresses on Gwynn St, Babylon, NY · Last verified August 2026

Gwynn St Highlights

Properties 19
Median Sale Price $425,000
Deeds and Mortgages on File 27
Median Price per Sqft $236
Owner Occupied 84%
Median Annual Tax Bill $14,579
Median Year Built 1955
Median Ownership Tenure 14 years

Properties on Gwynn St

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

503 Gwynn St

1.5 ba · 1,405 sqft · built 1955 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Feb 2018 $13,4202024 Amount on Record Nov 2017 2 Owners on Record Owner Occupied Assessor + 10 DocumentsUpdated Aug 2026

507 Gwynn St

1.5 ba · 1,916 sqft · built 1954 · 0.198 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Jan 2018 $19,5262024 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

510 Gwynn St

1.5 ba · 1,927 sqft · built 1955 · 0.38 acres

Last Sale Tax Bill Prior Sale Owner Records
$57,500Mar 2023 $3,0622024 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

511 Gwynn St

2.5 ba · 2,118 sqft · built 1955 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$315,000Jun 2012 $15,3212024 Owner on Record Owner Occupied AssessorUpdated Aug 2026

512 Gwynn St

2 ba · 2,127 sqft · built 1977 · 0.264 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Mar 2004 $15,8102024 Amount on Record Feb 1998 Owner on Record Owner Occupied AssessorUpdated Aug 2026

515 Gwynn St

1.5 ba · 1,426 sqft · built 1955 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$515,000Mar 2024 $7,5982024 Amount on Record Jun 2000 2 Owners on Record Assessor + 3 DocumentsUpdated Aug 2026

518 Gwynn St

3 ba · 2,911 sqft · built 1972 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$439,000Oct 2005 $16,9482024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

519 Gwynn St

1.5 ba · 1,405 sqft · built 1955 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Sep 2009 $10,9632024 Amount on Record Jun 2005 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

522 Gwynn St

1.5 ba · 1,798 sqft · built 1969 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,5792024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

523 Gwynn St

2.5 ba · 2,043 sqft · built 1963 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Jul 1995 $13,3022024 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

527 Gwynn St

1.5 ba · 1,999 sqft · built 1955 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,2382024 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

528 Gwynn St

1.5 ba · 1,410 sqft · built 1968 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,1372024 Owner on Record Owner Occupied AssessorUpdated Aug 2026

530 Gwynn St

1.5 ba · 1,337 sqft · built 1964 · 0.237 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,0282024 Owner on Record Assessor + 1 DocumentUpdated Aug 2026

531 Gwynn St

1.5 ba · 1,714 sqft · built 1955 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,3522024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

535 Gwynn St

1.5 ba · 1,829 sqft · built 1955 · 0.198 acres

Last Sale Tax Bill Prior Sale Owner Records
$433,000Feb 2010 $14,8462024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

536 Gwynn St

1.5 ba · 2,018 sqft · built 1955 · 0.184 acres

Last Sale Tax Bill Prior Sale Owner Records
$725,000Jan 2024 $14,9252024 Owner on Record Assessor + 3 DocumentsUpdated Aug 2026

539 Gwynn St

2 ba · 0.237 acres

Last Sale Tax Bill Prior Sale Owner Records
$365,000Aug 2009 $14,8102024 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

540 Gwynn St

1.5 ba · 2,025 sqft · built 1955 · 0.184 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,8852024 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

544 Gwynn St

2.5 ba · 2,624 sqft · built 1955 · 0.184 acres

Last Sale Tax Bill Prior Sale Owner Records
$55,000Feb 2020 $17,6142024 Amount on Record Aug 2019 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

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