Bergen County and Demarest Borough property records for 12 addresses on William St, Demarest, NJ · Last verified July 2026
| Properties | 12 |
|---|---|
| Median Sale Price | $1,500,000 |
| Deeds and Mortgages on File | 13 |
| Median Price per Sqft | $341 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $18,786 |
| Median Year Built | 1952 |
| Median Ownership Tenure | 16 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
1,920 sqft · Built 1952 · 0.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $17,7522025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,980 sqft · Built 1952 · 0.385 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $407,000Sep 2000 | $17,7672025 | Amount on Record Mar 1996 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3,780 sqft · Built 2016 · 0.358 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,550,000May 2017 | $41,1382025 | Amount on Record Jan 2016 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,367 sqft · Built 1952 · 0.385 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $635,000Jul 2017 | $18,5772025 | Amount on Record Jul 1993 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,060 sqft · Built 1952 · 0.358 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $600,000Apr 2006 | $18,7742025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,534 sqft · Built 1952 · 0.385 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $275,000Mar 2006 | $18,7862025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4,451 sqft · Built 2007 · 0.358 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,720,000Jan 2023 | $38,3872025 | Amount on Record Oct 2021 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5,009 sqft · Built 2009 · 0.385 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,500,000Aug 2009 | $39,4282025 | Amount on Record Aug 2008 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,723 sqft · Built 1952 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $17,3442025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
3,988 sqft · Built 2005 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,263,625Jun 2025 | $35,5552025 | Amount on Record Feb 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3,224 sqft · Built 2004 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000Oct 2004 | $29,7932025 | Amount on Record Aug 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,984 sqft · Built 1952 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2010 | $18,5432025 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |