Nassau County and Oyster Bay Town property records for 13 addresses on Dupont St, Plainview, NY · Last verified October 2026
| Properties | 13 |
|---|---|
| Median Sale Price | $2,100,000 |
| Deeds and Mortgages on File | 6 |
| Median Price per Sqft | $58 |
| Owner Occupied | 15% |
| Median Annual Tax Bill | $105,326 |
| Median Year Built | 1970 |
| Median Ownership Tenure | 24 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
60,880 sqft · built 1964 · 1.9 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,350,000Dec 2008 | $317,3612025 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
27,968 sqft · built 1963 · 1.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2008 | $107,2762025 | Owner on Record | AssessorUpdated Jun 2026 |
19,874 sqft · built 1960 · 1.38 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $950,000Jul 1999 | $105,3262025 | —Jul 1996 | Owner on Record Owner Occupied | AssessorUpdated Oct 2026 |
30,000 sqft · built 1968 · 2.43 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,340,000Feb 2016 | $85,7922025 | Amount on Record Jul 2003 | Owner on Record | AssessorUpdated Jun 2026 |
19,932 sqft · built 1970 · 1.01 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,175,000Mar 1997 | $71,9492025 | —Mar 1997 | Owner on Record | AssessorUpdated Jun 2026 |
39,726 sqft · built 1966 · 1.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,500,000Mar 2026 | $106,4772025 | Owner on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
31,680 sqft · built 1965 · 1.43 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,500,000Mar 2026 | $104,2632025 | Owner on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
29,978 sqft · built 1970 · 1.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,600,000Oct 1996 | $104,9182025 | —Oct 1996 | Owner on Record | AssessorUpdated Jun 2026 |
27,165 sqft · built 1973 · 1.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,450,000Sep 1997 | $117,1252025 | —Sep 1997 | Owner on Record | AssessorUpdated Jun 2026 |
21,930 sqft · built 1970 · 1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2002 | $73,6912025 | Owner on Record | AssessorUpdated Jun 2026 |
50,494 sqft · built 1970 · 2.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2002 | $184,1412025 | Owner on Record | AssessorUpdated Jun 2026 |
34,585 sqft · built 1972 · 1.43 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2002 | $104,3192025 | Owner on Record | AssessorUpdated Jun 2026 |
28,348 sqft · built 1987 · 1.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,100,000Aug 2014 | $115,7402025 | Amount on Record Jan 1997 | Owner on Record Owner Occupied | AssessorUpdated Oct 2026 |