Suffolk County and Islip Town property records for 40 addresses on Prospect Ave, Central Islip, NY · Last verified August 2026
| Properties | 40 |
|---|---|
| Median Sale Price | $550,000 |
| Deeds and Mortgages on File | 31 |
| Median Price per Sqft | $276 |
| Owner Occupied | 88% |
| Median Annual Tax Bill | $10,279 |
| Median Year Built | 1962 |
| Median Ownership Tenure | 16 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
0.589 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $430,000Oct 2005 | Amount on Record Jan 1998 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $115,000Feb 1996 | $9,7112024 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.589 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $541,000Jul 2024 | Amount on Record Jan 1998 | 1 Name on Record | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $430,000Jan 2006 | $11,0662024 | Amount on Record Jul 2003 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $128,000Jul 1999 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2,028 sqft · Built 1962 · 0.45 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $705,000Dec 2024 | $10,2792024 | Amount on Record Mar 2018 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
814 sqft · Built 1929 · 0.45 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $226,840Oct 2018 | $10,1882024 | Amount on Record Jul 2017 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $192,000Apr 2001 | $9,9522024 | Amount on Record Jan 1994 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.41 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Jun 2025 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,8252024 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $570,000Oct 2025 | Amount on Record Aug 2023 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000May 2010 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.46 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $750,000Jul 2025 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.91 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $235,000Jun 2013 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $192,000Oct 2010 | $9,2372024 | Amount on Record Sep 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,2092024 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $144,500Jun 1999 | $8,3872024 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Aug 2015 | Amount on Record Feb 2007 | 1 Name on Record Owner Occupied | AssessorUpdated May 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $247,000Apr 2003 | $11,1932024 | Amount on Record Oct 2002 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $284,450May 2002 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2,356 sqft · Built 1976 · 0.38 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Mar 2022 | $11,0192024 | Amount on Record Jul 2014 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
1,920 sqft · Built 1959 · 0.45 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $480,000Feb 2022 | $11,6622024 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $91,000Aug 1996 | Amount on Record May 1995 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000Aug 2007 | $11,2122024 | Amount on Record Jul 2001 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,702 sqft · Built 1941 · 0.45 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $470,000Oct 2021 | $11,9412024 | Amount on Record Jan 2012 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,000Sep 1994 | 1 Name on Record Owner Occupied | AssessorUpdated May 2026 |
1,946 sqft · Built 1962 · 0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $215,000Jan 2013 | Amount on Record May 2011 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Mar 2014 | Amount on Record Apr 2007 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $183,750Jun 2001 | $10,0732024 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,8702024 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $275,600Dec 2008 | $7,6942024 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2,168 sqft · Built 1973 · 0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2018 | Amount on Record Jul 1994 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.76 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.439 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $137,000Sep 1995 | $11,2772024 | Amount on Record Aug 1993 | 2 Names on Record Owner Occupied | AssessorUpdated 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 2nd percentile of exposed land nationally · 2nd in New York |
|---|---|
| Wildfire Likelihood | Low — less than 1 in 10,000 per year |
| Exposure | Direct 1 of 4 cells directly exposed · 3 adjoin burnable vegetation |