New York City property records for 8 units in 421 Adelphi St, Brooklyn, NY · Last verified October 2026
| Properties | 8 |
|---|---|
| Median Sale Price | $827,225 |
| Deeds and Mortgages on File | 5 |
| Median Price per Sqft | $765 |
| Owner Occupied | 25% |
| Median Annual Tax Bill | $13,550 |
| Average Year Built | 1988 |
| Median Ownership Tenure | 5 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
1,145 sqft · built 1988
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Aug 2022 | $13,6902025 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Oct 2026 |
1,003 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,4472025 | 2 Owners on Record Owner Occupied | AssessorUpdated May 2026 |
1,153 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,5502025 | Owner on Record | AssessorUpdated May 2026 |
1,012 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $827,225Mar 2025 | $13,0722025 | —Jan 2023 | Owner on Record | Assessor + 2 DocumentsUpdated Oct 2026 |
1,153 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $738,000Feb 2014 | $13,5502025 | Owner on Record | AssessorUpdated May 2026 |
1,012 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,0712025 | Owner on Record Owner Occupied | AssessorUpdated May 2026 |
1,153 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $870,000Jun 2021 | $13,5502025 | Owner on Record | Assessor + 1 DocumentUpdated May 2026 |
1,012 sqft
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $775,000Mar 2015 | $12,5082025 | Amount on Record Jun 2005 | Owner on Record | AssessorUpdated Oct 2026 |