Suffolk County and Islip Town property records for 56 addresses on N Monroe Ave, West Islip, NY · Last verified October 2026
| Properties | 56 |
|---|---|
| Median Sale Price | $643,000 |
| Deeds and Mortgages on File | 47 |
| Median Price per Sqft | $307 |
| Owner Occupied | 98% |
| Median Annual Tax Bill | $12,685 |
| Median Year Built | 1965 |
| Median Ownership Tenure | 10 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1342 N Monroe Ave |
0.189 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1343 N Monroe Ave |
2,233 sqft built 1968 · 0.16 acres | $480,000 Jun 2020 | $11,925 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1348 N Monroe Ave |
1,746 sqft built 1962 · 0.189 acres | $667,000 Jan 2022 | $12,918 2024 | Assessor + 4 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1349 N Monroe Ave |
0.16 acres | $400,000 Nov 2012 | $13,198 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1354 N Monroe Ave |
0.219 acres | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1355 N Monroe Ave |
0.23 acres | $195,500 Apr 1998 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1400 N Monroe Ave |
0.239 acres | $183,500 May 1998 | $13,414 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1410 N Monroe Ave |
0.269 acres | $140,000 May 1994 | $9,851 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1411 N Monroe Ave |
0.169 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1417 N Monroe Ave |
0.169 acres | $11,867 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1418 N Monroe Ave |
1,780 sqft built 1975 · 0.219 acres | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1424 N Monroe Ave |
0.219 acres | $257,000 Aug 2000 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1425 N Monroe Ave |
0.169 acres | $390,000 Jul 2010 | $12,685 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1433 N Monroe Ave |
0.169 acres | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1510 N Monroe Ave |
0.13 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1513 N Monroe Ave |
2,359 sqft built 1950 · 0.18 acres | $212,120 Jan 2002 | $14,372 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1519 N Monroe Ave |
0.16 acres | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1520 N Monroe Ave |
1,882 sqft built 1969 · 0.089 acres | $550,000 Mar 2022 | $12,572 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1523 N Monroe Ave |
0.169 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1524 N Monroe Ave |
2,264 sqft built 1963 · 0.18 acres | — Nov 2018 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1533 N Monroe Ave |
0.169 acres | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1553 N Monroe Ave |
0.2 acres | $590,000 Mar 2023 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1560 N Monroe Ave |
0.2 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1561 N Monroe Ave |
1,690 sqft built 1962 · 0.18 acres | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1568 N Monroe Ave |
0.169 acres | — Feb 2011 | $13,388 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1569 N Monroe Ave |
2,510 sqft built 1963 · 0.169 acres | $460,000 Oct 2018 | $14,228 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1576 N Monroe Ave |
1,690 sqft built 1965 · 0.169 acres | $98,750 Feb 2018 | $12,303 2024 | Assessor + 3 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1577 N Monroe Ave |
0.169 acres | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1584 N Monroe Ave |
1,690 sqft built 1962 · 0.169 acres | $643,000 Nov 2021 | $14,256 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1585 N Monroe Ave |
0.18 acres | $365,000 Aug 2015 | $13,919 2024 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1592 N Monroe Ave |
0.169 acres | $230,000 Jan 1999 | $11,783 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1593 N Monroe Ave |
1,690 sqft built 1963 · 0.2 acres | $350,000 Mar 2017 | $12,516 2024 | Assessor + 3 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1715 N Monroe Ave |
0.23 acres | $159,000 Jun 1997 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1720 N Monroe Ave |
0.169 acres | $180,000 May 1996 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1725 N Monroe Ave |
1,846 sqft built 1967 · 0.18 acres | $485,000 Nov 2019 | $13,725 2024 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1730 N Monroe Ave |
0.169 acres | $320,000 Apr 2002 | $12,680 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1735 N Monroe Ave |
2,370 sqft built 1965 · 0.269 acres | $535,000 Mar 2021 | $15,634 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1740 N Monroe Ave |
0.169 acres | $408,000 Jun 2016 | $12,178 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1745 N Monroe Ave |
0.23 acres | $313,000 Mar 2002 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1750 N Monroe Ave |
0.169 acres | $705,000 Nov 2022 | $14,314 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1760 N Monroe Ave |
0.169 acres | $12,667 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1770 N Monroe Ave |
1,651 sqft built 1971 · 0.169 acres | $589,000 May 2021 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1775 N Monroe Ave |
0.23 acres | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1780 N Monroe Ave |
0.2 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1796 N Monroe Ave |
0.13 acres | $7,227 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1810 N Monroe Ave |
0.18 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1817 N Monroe Ave |
0.23 acres | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1825 N Monroe Ave |
0.18 acres | $420,000 Jan 2016 | $12,910 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1826 N Monroe Ave |
0.169 acres | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1833 N Monroe Ave |
0.169 acres | $125,000 Nov 1994 | $10,166 2024 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1834 N Monroe Ave |
0.169 acres | $315,000 Nov 2012 | $11,741 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1841 N Monroe Ave |
0.16 acres | $750,000 Nov 2024 | Assessor Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1842 N Monroe Ave |
0.169 acres | $125,000 Jul 2017 | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1849 N Monroe Ave |
0.169 acres | $401,000 Nov 2016 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1850 N Monroe Ave |
2,144 sqft built 1971 · 0.169 acres | $660,000 Jan 2022 | $14,513 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1858 N Monroe Ave |
0.23 acres | $135,000 Jan 2007 | $11,136 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |