Suffolk County, East Hampton Town and Islip Town property records for 27 addresses on Harbor Ave, Islip, NY · Last verified August 2026
| Properties | 27 |
|---|---|
| Median Sale Price | $822,000 |
| Deeds and Mortgages on File | 21 |
| Median Price per Sqft | $318 |
| Owner Occupied | 41% |
| Median Annual Tax Bill | $6,020 |
| Median Year Built | 1951 |
| Median Ownership Tenure | 12 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
0.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $165,000Jul 1994 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.219 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
2,136 sqft · Built 1970 · 0.169 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $549,000Aug 2018 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated May 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,065,000Dec 2016 | $3,5142024 | Amount on Record Jan 2006 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.589 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,0202024 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2014 | $6,3222024 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,600,000Jul 2025 | $5,1022024 | Amount on Record Jan 2004 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Dec 2014 | $5,9922024 | 1 Name on Record | AssessorUpdated Jul 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $822,000Apr 2018 | $5,6632024 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.46 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,7862024 | 1 Name on Record | AssessorUpdated Aug 2026 |
0.46 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $71,117Jul 1996 | $6,5422024 | Amount on Record Dec 1993 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $600,000Feb 2013 | $7,2572024 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
1,526 sqft · Built 1920 · 0.31 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Jun 2018 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated May 2026 |
0.38 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $255,000Sep 2011 | $5,8552024 | 1 Name on Record | AssessorUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2202024 | 1 Name on Record | AssessorUpdated Aug 2026 |
0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3302024 | 1 Name on Record | AssessorUpdated Aug 2026 |
3,016 sqft · Built 1951 · 0.319 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $670,000Apr 2023 | $18,9982024 | Amount on Record Feb 2007 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
1,788 sqft · Built 1941 · 0.13 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $570,000Jan 2024 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.469 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,550,000Jun 2025 | $6,3772024 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.369 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated May 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $455,000May 2001 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $450,000Dec 2013 | $5,6412024 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $771,000Oct 2014 | $6,5702024 | Amount on Record Dec 2007 | 1 Name on Record | AssessorUpdated Jul 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $625,000Aug 2012 | $7,4222024 | Amount on Record Sep 2003 | 1 Name on Record | AssessorUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $715,000Aug 2016 | $3,4092024 | —Jul 2012 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Low this street's cells rank at the 15th percentile of exposed land nationally · 39th in New York |
|---|---|
| Wildfire Likelihood | Low — less than 1 in 10,000 per year |
| Exposure | Indirect 0 of 5 cells directly exposed · 3 adjoin burnable vegetation |