Suffolk County and Islip Town property records for 21 addresses on John Ave, Bayport, NY · Last verified September 2026
| Properties | 21 |
|---|---|
| Median Sale Price | $769,500 |
| Deeds and Mortgages on File | 31 |
| Median Price per Sqft | $254 |
| Owner Occupied | 95% |
| Median Annual Tax Bill | $15,072 |
| Median Year Built | 2001 |
| Median Ownership Tenure | 7 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
0.48 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $750,000Jul 2024 | Amount on Record Feb 1995 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $332,500Aug 2010 | $9,4602024 | Amount on Record Jun 2008 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
3,967 sqft · built 2020 · 0.489 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $23,1452024 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
3,044 sqft · built 2020 · 0.489 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $676,500Jun 2021 | $20,6202024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
1,441 sqft · built 1979 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $425,000Oct 2019 | $13,5192024 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3,356 sqft · built 2020 · 0.489 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $769,500Jun 2021 | $21,7652024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
1,620 sqft · built 1975 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $640,000Dec 2024 | $14,9712024 | Amount on Record Mar 2021 | 2 Owners on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
4,228 sqft · built 2020 · 0.489 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $910,000Jun 2021 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
1,221 sqft · built 1984 · 0.289 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $410,000Jan 2007 | $12,7772024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2,312 sqft · built 1986 · 1.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2021 | $15,0722024 | Amount on Record Mar 2001 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $340,000Mar 2008 | $13,1732024 | Amount on Record May 2002 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.65 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $161,500Mar 1994 | $16,4232024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.669 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,8482024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.419 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $265,000Mar 2002 | $12,8362024 | Amount on Record Aug 2000 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Sep 2026 |
2,312 sqft · built 1986 · 0.48 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $308,800Mar 2019 | $15,0722024 | Amount on Record Aug 2007 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
0.98 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $215,500Aug 1997 | Amount on Record Apr 1997 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.469 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $250,000Jan 2004 | Amount on Record Aug 1994 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
1.05 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $780,000Feb 2006 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
3,442 sqft · built 2001 · 1.03 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $875,000Oct 2021 | Amount on Record Mar 2002 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2,276 sqft · built 2002 · 0.919 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $859,000Apr 2022 | $20,6432024 | Amount on Record Aug 2002 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |