Nassau County and North Hempstead Town property record for 17 Post Ave, Williston Park, NY 11596
| Property Type | Single Family Home |
|---|---|
| Details | 5.5 ba · 4,366 sqft · built 2018 |
| Lot Size | 0.402 acres (17,498 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $999,000 (Jan 2018) |
| Tax Bill | $25,248 (2025) |
| Deeds & Mortgages | Jan 2026 Line of Credit Aug 2023 Second Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-225-00-0012 |
| Primary APN | 09-225-00-0012 |
|---|---|
| Alternative APNs |
|
| Full Baths | 5.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 4,366 sqft Living Area |
| Gross Area | 5,161 sqft |
| 1st Floor Area | 1,775 sqft |
| Basement Area | 795 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2018 |
|---|---|
| Effective Year Built | Effective 2018 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | Block |
| Roof Material | Other |
| Lot Area | 17,498 sqft (0.402 acres) |
| Lot Dimensions | 175 ft deep x 100 ft wide |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Area | 512 sqft |
|---|---|
| Porch | Open Frame Porch |
| Porch Area | 30 sqft |
| Patio Area | 128 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 09225 00120 |
|---|---|
| Street Address | 17 POST AVE |
| City | WILLISTON PARK |
| State | NY |
| Zip | 11596-2020 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #2 SCH DIST 002 |
| Legal Block | 225 |
| Legal Lot Number | 12 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | NORTH HEMPSTEAD |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 303400 |
Source: Nassau County and North Hempstead Town records, as of June 17, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 27, 2026 | Deed of Trust, Mortgage · Line of Credit TD BANK NA |
| Aug 9, 2023 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage TEACHERS FCU |
| Apr 7, 2021 | Deed of Trust, Mortgage · Conventional Mortgage CLIFFCO INC |
| Apr 7, 2021 | Deed of Trust, Mortgage · Conventional Mortgage CLIFFCO INC |
| Jan 23, 2018 | Deed, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 23, 2018 · Amount on Record |
| Deed Sale | Jan 23, 2018 · Amount on Record |
| Prior Sale | Oct 25, 2012 |
| Deed Document Number | 2018-007169 |
| Deed Book / Page | 13612 / 329 |
| Prior Transfer Date | Oct 12, 2012 |
| Prior Transfer Doc | 0128820982 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Property Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Transaction Type | Mortgage |
| Record Updated | May 18, 2026 |
| Name | Verified Name |
|---|---|
| Address | 17 POST AVE, EAST WILLISTON, NY 11596-2020 |
| Document Number | M483100170 |
|---|---|
| Date | Jan 27, 2026 |
| Book Page | M48310/170 |
| Instrument | 2026-5458 |
| Name | TD BANK NA |
|---|---|
| Type | Bank |
| Address | WILMINGTON, DE 19808 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 20, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Property Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Transaction Type | Mortgage |
| Record Updated | Aug 16, 2023 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Document Number | M472380120 |
|---|---|
| Date | Aug 9, 2023 |
| Book Page | M47238/120 |
| Instrument | 2023-46841 |
| Name | TEACHERS FCU |
|---|---|
| Type | Credit Union |
| Address | HAUPPAUGE, NY 11788 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 60 Months |
| Due | Aug 1, 2028 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Property Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Transaction Type | Mortgage |
| Record Updated | May 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0452440664 |
|---|---|
| Date | Apr 7, 2021 |
| Book Page | 45244/664 |
| Instrument | 2021-045782 |
| Name | CLIFFCO INC |
|---|---|
| Type | Funding / Finance Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 1, 2051 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Property Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Transaction Type | Mortgage |
| Record Updated | May 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0452440652 |
|---|---|
| Date | Apr 7, 2021 |
| Book Page | 45244/652 |
| Instrument | 2021-045781 |
| Name | CLIFFCO INC |
|---|---|
| Type | Funding / Finance Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 1, 2051 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Jan 23, 2018 |
| Property Address | 17 POST AVE, WILLISTON PARK, NY 11596-2020 |
| Document Number | 0136120329 |
| Book / Page | 13612 / 329 |
| Instrument Date | Jan 11, 2018 |
| Instrument | 2018-007169 |
| Transaction Type | Transfer |
| Record Updated | May 14, 2021 |
| Amount | Amount Recorded |
|---|---|
| Tax | $3,996.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 75 ARGYLE RD, ALBERTSON, NY 11507-2203 |
Source: Nassau County and North Hempstead Town assessment roll, as of June 17, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | North Hempstead Town |
| Municipality | East Williston Village |
| Unified School District | East Williston Union Free School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,578 (-6.41%) Land $527 Building $1,051 | $1,578,000 (-6.41%) | |
| 2025 | $25,248.00 (-10.45%) Homeowner's exemption | $1,686 (-17.51%) Land $563 Building $1,123 | $1,686,000 (-17.51%) |
| 2023 | $28,195.00 Additional exemption filed | $2,044 Land $683 Building $1,361 | $2,044,000 |
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.
Source: FEMA National Flood Hazard Layer, effective April 5, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 2 (2010–2014) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Apr 2014 · other causes |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 96% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | EAST WILLISTON (V) serves 2,556 people · EPA ID NY2902820 |
|---|---|
| Water Source | Purchased groundwater from WILLISTON PARK (V) |
| Last State Inspection | Oct 2024 |
| Lead | Under 1 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, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 484 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 2,300 / 2,300 |
| T-Mobile Fixed Wireless | 100 / 20 |
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