Nassau County and North Hempstead Town property record for 247 Cornwell Ave, Williston Park, NY 11596
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,798 sqft · built 1948 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $580,000 (Mar 2010) |
| Tax Bill | $12,016 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-128-00-0088 |
| Primary APN | 09-128-00-0088 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,798 sqft Living Area |
| Gross Area | 1,832 sqft |
| 1st Floor Area | 792 sqft |
| Basement Area | 34 sqft |
| Game Room | Game Room |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Colonial |
| Exterior Material | Brick/Stone |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Patio Area | 192 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 09128 00880 |
|---|---|
| Street Address | 247 CORNWELL AVE |
| City | WILLISTON PARK |
| State | NY |
| Zip | 11596-1047 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #2 SCH DIST 009 |
| Legal Subdivision | WILLISTON GDN ESTS SEC 2 |
| Legal Block | 128 |
| Legal Lot Number | 88 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | NORTH HEMPSTEAD |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 303301 |
Source: Nassau County and North Hempstead Town records · APN 09-128-00-0088
Assessment roll updated June 17, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 247 CORNWELL AVE, WILLISTON PARK, NY 11596-1047 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 24, 2010 · Amount on Record |
| Deed Sale | Mar 24, 2010 · Amount on Record |
| Deed Document Number | 20102176 |
| Deed Book / Page | 12597 / 853 |
| Record Updated | Sep 20, 2026 |
Source: Nassau County and North Hempstead Town records · Assessment roll updated June 17, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | North Hempstead Town |
| Municipality | Williston Park Village |
| Unified School District | Herricks Union Free School District (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $636 (-7.42%) Land $284 Building $352 | $636,000 (-7.42%) | |
| 2025 | $12,016.00 (+0.37%) | ||
| 2023 | $11,972.00 Homeowner's exemption | $687 Land $306 Building $381 | $687,000 |
Source: FEMA National Flood Hazard Layer as of April 5, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1980) |
| Most Recent Claim | Apr 1980 · rainfall accumulation |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Communications Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 888 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WILLISTON PARK (V) serves 7,287 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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