Nassau County and North Hempstead Town property record for 355 Post Ave, Westbury, NY 11590
| Property Type | Commercial Office |
|---|---|
| Details | 5,260 sqft · built 1987 |
| Lot Size | 0.515 acres (22,446 sqft) |
| Owner | Company Name on Record |
| Last Sale | $3,025,000 (Jul 2005) |
| Tax Bill | $112,970 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-170-00-0455 |
| Primary APN | 10-170-00-0455 |
|---|---|
| Alternative APNs |
|
| Units | 15 Units |
|---|---|
| Stories | 2 Stories |
| Building Area | 5,260 sqft Gross Area |
| Interior Walls | Finished/Painted |
| Fire Sprinklers | Fire Sprinklers |
| Elevator | Elevator |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Exterior Material | Combination |
| Construction Type | Steel Frame |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 22,446 sqft (0.515 acres) |
| Lot Dimensions | 10 ft deep x 6 ft wide |
| View / Lot | Central Business |
| Garage Area | 10,348 sqft |
| Parking Spaces | 33 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 10170 04550 |
|---|---|
| Street Address | 355 POST AVE |
| City | WESTBURY |
| State | NY |
| Zip | 11590-2265 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | TOWN #2 SCH DIST 001 |
| Legal Subdivision | HERMAN WINDHORST |
| Legal Block | 170 |
| Legal Lot Number | 455 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | NORTH HEMPSTEAD |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 304002 |
Source: Nassau County and North Hempstead Town records, as of June 17, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 355 POST AVE, WESTBURY, NY 11590-2265 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 11, 2005 · Amount on Record |
| Deed Sale | Jul 11, 2005 · Amount on Record |
| Prior Sale | Sep 25, 2001 · Amount on Record |
| Deed Book / Page | 11974 / 581 |
| Record Updated | Oct 29, 2026 |
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 | Westbury Village |
| Unified School District | Westbury Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $24,534 (-) Land $7,856 Building $16,678 | $2,453,400 (-) | |
| 2025 | $112,970.00 (-14.44%) | ||
| 2023 | $132,030.00 | $24,534 Land $7,856 Building $16,678 | $2,453,400 |
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 | 1 in force |
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 | 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 | WESTBURY WD public/private · serves 20,500 people · EPA ID NY2902856 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2023 |
| Lead | Under 1 ppb (2021–2023) 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.
Source: FCC Broadband Data Collection, based on 424 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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