Nassau County and Hempstead Town property records for 24 addresses on Knoll Ct, Seaford, NY · Last verified October 2026
| Properties | 24 |
|---|---|
| Median Sale Price | $535,000 |
| Deeds and Mortgages on File | 18 |
| Median Price per Sqft | $353 |
| Owner Occupied | 92% |
| Median Annual Tax Bill | $10,110 |
| Median Year Built | 1954 |
| Median Ownership Tenure | 14 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
492 Knoll Ct |
3 ba · 2,728 sqft built 1954 · 0.258 acres | $965,000 Jul 2024 | $14,080 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
493 Knoll Ct |
1.5 ba · 1,260 sqft built 1954 · 0.171 acres | $450,000 Jan 2006 | $7,046 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
507 Knoll Ct |
1 ba · 1,656 sqft built 1954 · 0.198 acres | $10,316 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
514 Knoll Ct |
4 bd · 3 ba · 1,750 sqft built 1954 · 0.172 acres | $416,000 Oct 2015 | $9,433 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
515 Knoll Ct |
2 ba · 1,446 sqft built 1954 · 0.137 acres | $472,500 Feb 2006 | $12,174 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
521 Knoll Ct |
1 ba · 1,040 sqft built 1954 · 0.137 acres | $680,000 Jan 2025 | $8,759 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
526 Knoll Ct |
1 ba · 1,176 sqft built 1954 · 0.144 acres | $535,000 Oct 2021 | $10,246 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
527 Knoll Ct |
1 ba · 1,176 sqft built 1954 · 0.137 acres | $125,000 Dec 1996 | $9,924 2025 | Assessor + 1 Document Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
532 Knoll Ct |
1 ba · 1,040 sqft built 1954 · 0.137 acres | $30,820 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
533 Knoll Ct |
1 ba · 1,176 sqft built 1954 · 0.137 acres | — May 2003 | $7,996 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
538 Knoll Ct |
2 ba · 2,187 sqft built 1954 · 0.146 acres | $11,202 2025 | Assessor + 1 Document Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
539 Knoll Ct |
3 ba · 1,176 sqft built 1954 · 0.137 acres | $724,000 Nov 2024 | $8,852 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
544 Knoll Ct |
3 bd · 2 ba · 1,331 sqft built 1954 · 0.154 acres | $430,000 Nov 2017 | $10,014 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
545, #Q Knoll Ct |
2 ba · 1,602 sqft built 1954 · 0.137 acres | $10,594 2025 | Assessor + 1 Document Updated Jun 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
550 Knoll Ct |
1 ba · 1,235 sqft built 1954 · 0.154 acres | $472,000 Oct 2006 | $10,525 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
551 Knoll Ct |
1 ba · 1,176 sqft built 1954 · 0.137 acres | $326,500 Apr 2003 | $8,362 2025 | Assessor + 1 Document Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
557 Knoll Ct |
2 ba · 1,872 sqft built 1956 · 0.137 acres | $356,250 Aug 2025 | $11,605 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
563 Knoll Ct |
2 ba · 1,260 sqft built 1954 · 0.145 acres | $8,600 2025 | Assessor + 1 Document Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
570 Knoll Ct |
2 ba · 2,030 sqft built 1954 · 0.224 acres | $11,826 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
571 Knoll Ct |
2 ba · 1,515 sqft built 1954 · 0.155 acres | $437,000 Dec 2005 | $9,599 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
577 Knoll Ct |
2 ba · 1,680 sqft built 1954 · 0.137 acres | $480,000 Feb 2007 | $11,086 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
583 Knoll Ct |
3 bd · 2 ba · 1,260 sqft built 1954 · 0.137 acres | $340,000 Oct 2014 | $9,901 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
588 Knoll Ct |
2 ba · 1,824 sqft built 1954 · 0.137 acres | $317,156 Nov 2012 | $10,110 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
589 Knoll Ct |
1.5 ba · 1,482 sqft built 1954 · 0.137 acres | $7,598 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |