Nassau County and Hempstead Town property records for 26 addresses on William St, Seaford, NY · Last verified August 2026
| Properties | 26 |
|---|---|
| Median Sale Price | $655,000 |
| Deeds and Mortgages on File | 26 |
| Median Price per Sqft | $438 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $14,904 |
| Median Year Built | 1956 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2.5 ba · 1,726 sqft · built 1956 · 0.174 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,4832025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3.5 ba · 3,283 sqft · built 1956 · 0.174 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $21,0272025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
2.5 ba · 1,708 sqft · built 1956 · 0.184 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $535,000Feb 2009 | $16,3972025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3.5 ba · 2,767 sqft · built 1956 · 0.163 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $410,000Apr 2000 | $18,6972025 | Amount on Record Dec 1995 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
2.5 ba · 1,726 sqft · built 1956 · 0.178 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $515,000Sep 2004 | $16,2962025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
2 ba · 2,380 sqft · built 1949 · 0.327 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $15,4062025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 ba · 2,172 sqft · built 1954 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $224,000Oct 1997 | $22,5212025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
5 bd · 2.5 ba · 2,871 sqft · built 2006 · 0.196 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $70,000Nov 2002 | $20,1012025 | Amount on Record Sep 1996 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
2.5 ba · 2,494 sqft · built 1954 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $455,000Sep 2002 | $16,6612025 | —Sep 2002 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
2.5 ba · 2,203 sqft · built 2008 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $400,000May 2007 | $16,7212025 | Amount on Record Jun 2001 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
1.5 ba · 2,375 sqft · built 1960 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,9932025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
4 bd · 2.5 ba · 2,211 sqft · built 2005 · 0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $655,000Aug 2015 | $17,5622025 | Amount on Record Jan 2006 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
1.5 ba · 1,684 sqft · built 1935 · 0.196 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $43,000Oct 1998 | $14,9042025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
2.5 ba · 1,284 sqft · built 1935 · 0.183 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $711,000Oct 2024 | $11,4822025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
2 ba · 1,744 sqft · built 1933 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $475,000Oct 2002 | $13,5522025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
2.5 ba · 3,366 sqft · built 2011 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $405,000Apr 2011 | $26,8522025 | —Dec 2001 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
1.5 ba · 1,518 sqft · built 1976 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $361,000Aug 2002 | $13,6742025 | Amount on Record Aug 2000 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
1 ba · 1,156 sqft · built 1932 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,2672025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,173 sqft · built 1940 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $417,500Mar 2017 | $13,7392025 | Amount on Record Jun 2015 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
3 ba · 1,511 sqft · built 1935 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,4482025 | Amount on Record Oct 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
1 ba · 966 sqft · built 1940 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $480,000May 2023 | $12,8132025 | Amount on Record Jan 1999 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 3.5 ba · 3,168 sqft · built 2017 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $822,276May 2017 | $23,1482025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
1.5 ba · 1,111 sqft · built 1935 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,1362025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
2 ba · 2,677 sqft · built 1996 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $419,000Feb 2002 | $12,8802025 | Amount on Record Aug 2000 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
1.5 ba · 1,197 sqft · built 1933 · 0.198 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Jan 2022 | $11,1972025 | —Sep 1996 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
1.5 ba · 1,496 sqft · built 1930 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $765,000May 2026 | $12,4062026 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |