Nassau County and Oyster Bay Town property record for 9 Walnut Dr, Syosset, NY 11791
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,650 sqft · built 1958 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $998,000 (Feb 2024) |
| Tax Bill | $18,934 (2025) |
| Deeds & Mortgages | Feb 2024 Sale & Mortgage May 2019 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 15-158-00-0030 |
| Primary APN | 15-158-00-0030 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,650 sqft Living Area |
| 1st Floor Area | 1,027 sqft |
| Basement Area | 347 sqft |
| Finished Basement | 347 sqft |
| Game Room | Game Room |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Split Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | Concrete |
| Roof Material | Other |
| Lot Area | 7,000 sqft (0.161 acres) |
| Lot Dimensions | 100 ft deep x 70 ft wide |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Patio Area | 320 sqft |
| Canopy | 44 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 15158 00300 |
|---|---|
| Street Address | 9 WALNUT DR |
| City | SYOSSET |
| State | NY |
| Zip | 11791-4716 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #3 SCH DIST 014 |
| Legal Block | 158 |
| Legal Lot Number | 30 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 5 |
| Census Block | 5003 |
| Census Tract | 518700 |
9 Walnut Dr is owned and occupied by two individuals who bought it in February 2024.
Source: Nassau County and Oyster Bay Town records, as of June 17, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 9 WALNUT DR, SYOSSET, NY 11791-4716 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Husband and Wife |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Feb 21, 2024 | Bargain and Sale Deed, Transfer · Conventional Mortgage CATHAY BANK |
| May 29, 2019 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 21, 2024 · Amount on File |
| Deed Sale | Feb 21, 2024 · Amount on File |
| Deed Document Number | 202410743 |
| Deed Book / Page | 14469 / 424 |
| Prior Transfer Date | May 6, 2019 |
| Prior Transfer Doc | 0138070253 |
| Record Updated | Oct 29, 2026 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Feb 21, 2024 |
| Property Address | 9 WALNUT DR, SYOSSET, NY 11791-4716 |
| Document Number | D144690424 |
| Book / Page | D14469 / 424 |
| Map Reference | FILE 6685 |
| Instrument Date | Feb 6, 2024 |
| Instrument | 2024-10743 |
| Transaction Type | Transfer |
| Record Updated | Feb 28, 2024 |
| Title Company | STEWART TITLE, STEWART TITLE INSURANCE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $3,992.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 9 WALNUT DR, SYOSSET, NY 11791-4716 |
| Name | Verified Name |
|---|---|
| Address | 9 WALNUT DR, SYOSSET, NY 11791-4716 |
| Document Number | 0202410744 |
|---|---|
| Date | Feb 21, 2024 |
| Instrument | 2024-10744 |
| Name | CATHAY BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 7.25% |
| Type Change Date | Mar 1, 2027 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 13.2% |
| Index | 1-Year T-Bill |
| Max Rate | 13.2% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | May 29, 2019 |
| Property Address | 9 WALNUT DR, SYOSSET, NY 11791-4716 |
| Document Number | 0138070253 |
| Book / Page | 013807 / 000253 |
| Instrument Date | May 6, 2019 |
| Instrument | 44670 |
| Transaction Type | Transfer |
| Record Updated | Jun 17, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18 LINDEN LN OLD WESTBURY NY 115681610, OLD WESTBURY, NY 11568-1610 |
The 2025 property tax bill for 9 Walnut Dr was $18,934.
Source: Nassau County and Oyster Bay Town assessment roll, as of June 17, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Oyster Bay Town |
| Unified School District | Syosset Central School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $639 (+5.97%) Land $344 Building $295 | $661,000 (+9.62%) | |
| 2025 | $18,934.00 | $603 Land $314 Building $289 | $603,000 |
| 2023 | $17,553.00 Additional exemption filed | $642 Land $334 Building $308 | $642,000 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 9 Walnut Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective April 5, 2023
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 9 Walnut Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | JERICHO WD public/private · serves 58,000 people · EPA ID NY2902831 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2023 |
| Lead | 2 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Corrosion control Jul 2023 |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 75 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| T-Mobile Fixed Wireless | 100 / 20 |
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