Suffolk County and Islip Town property records for 8 addresses on Douglas Ave, West Islip, NY · Last verified August 2026
| Properties | 8 |
|---|---|
| Median Sale Price | $314,150 |
| Deeds and Mortgages on File | 10 |
| Average Living Area | 2,338 sq ft |
| Owner Occupied | 88% |
| Median Annual Tax Bill | $11,949 |
| Median Year Built | 1964 |
| Median Ownership Tenure | 13 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2,309 sqft · built 1964 · 0.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $314,150Mar 2019 | Amount on Record Jan 2019 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $328,300Feb 2013 | $11,8672024 | Amount on Record Jun 1999 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,2462024 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,819 sqft · built 1972 · 0.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $488,800Jul 2014 | Amount on Record Aug 1996 | Owner on Record Owner Occupied | AssessorUpdated May 2026 |
2,886 sqft · built 1930 · 0.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Feb 2002 | $11,9492024 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $131,000Sep 1995 | $14,6802024 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $245,000May 2002 | $11,9252024 | Amount on Record — | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |