Suffolk County and Islip Town property records for 45 addresses on Union Blvd, West Islip, NY · Last verified August 2026
| Properties | 45 |
|---|---|
| Median Sale Price | $540,000 |
| Deeds and Mortgages on File | 36 |
| Median Price per Sqft | $488 |
| Owner Occupied | 18% |
| Median Annual Tax Bill | $10,941 |
| Average Year Built | 1964 |
| Median Ownership Tenure | 10 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2.1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record | AssessorUpdated Aug 2026 |
0.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $169,000Aug 1998 | Owner on Record | AssessorUpdated Aug 2026 |
0.689 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Mar 2013 | Amount on Record Aug 2001 | Owner on Record | AssessorUpdated Jul 2026 |
1.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,675,000Sep 2016 | Amount on Record Jul 2008 | Owner on Record | AssessorUpdated Aug 2026 |
0.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $540,000Mar 2026 | Amount on Record Mar 2025 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000Jul 2013 | Owner on Record | AssessorUpdated Aug 2026 |
0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $465,000Jul 2020 | Amount on Record Jan 2015 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.689 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
140 sqft · 0.319 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $400,000Nov 2020 | Amount on Record Jan 1995 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.469 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Aug 2019 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $200,000Nov 2014 | Amount on Record Apr 2003 | Owner on Record | AssessorUpdated Aug 2026 |
0.48 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $495,000Dec 2000 | Amount on Record Nov 1996 | Owner on Record | AssessorUpdated Aug 2026 |
0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $360,000Feb 2017 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $190,000Sep 2016 | $7,0602024 | Amount on Record Nov 2001 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.31 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $430,000Jan 2012 | Owner on Record | AssessorUpdated Aug 2026 |
0.1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000Oct 2025 | —Jul 2025 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.369 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $40,000Oct 1995 | —Jan 1995 | 2 Owners on Record | AssessorUpdated Aug 2026 |
1.81 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.619 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.519 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $800,000Dec 2015 | Amount on Record Nov 2001 | Owner on Record | Assessor + 4 DocumentsUpdated Aug 2026 |
0.569 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record | AssessorUpdated Aug 2026 |
96 sqft · 0.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Oct 2017 | $15,7522024 | Amount on Record Jun 2009 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
1,850 sqft · built 1957 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000Oct 2017 | $10,9412024 | Amount on Record Jul 2014 | 2 Owners on Record Owner Occupied | Assessor + 9 DocumentsUpdated Aug 2026 |
0.569 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,600,000May 2017 | Owner on Record | AssessorUpdated Aug 2026 |
6.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
3.91 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
3.03 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
3.01 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
4.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
0.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Mar 2024 |
0.819 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record | AssessorUpdated Aug 2026 |
0.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000May 2014 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $117,500Jul 1996 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Jun 2004 | $11,4172024 | Amount on Record Sep 2001 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $160,000Jun 2000 | $9,1962024 | Amount on Record Dec 1996 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.439 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $800,000May 2023 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.339 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,444 sqft · built 1972 · 0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $705,550Feb 2026 | $9,4392024 | Amount on Record Aug 2025 | Owner on Record | Assessor + 5 DocumentsUpdated Aug 2026 |