Nassau County and Hempstead Town property record for 20 Harrison Ave, Hempstead, NY 11550
| Property Type | Duplex |
|---|---|
| Details | 2 ba · 2,125 sqft · built 1961 |
| Lot Size | 0.099 acres (4,300 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,857 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 35-640-00-0111 |
| Primary APN | 35-640-00-0111 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,125 sqft Living Area |
| Gross Area | 2,150 sqft |
| 1st Floor Area | 1,050 sqft |
| Basement Area | 25 sqft |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Multi-Family |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 4,300 sqft (0.099 acres) |
| Lot Dimensions | 100 ft deep x 43 ft wide |
| Porch | Open Frame Porch |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 35640 01110 |
|---|---|
| Street Address | 20 HARRISON AVE |
| City | HEMPSTEAD |
| State | NY |
| Zip | 11550-5402 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | TOWN #1 SCH DIST 001 |
| Legal Block | 640 |
| Legal Lot Number | 111 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | HEMPSTEAD |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 406701 |
20 Harrison Ave, a duplex, is owned by a company and is owner-occupied.
Source: Nassau County and Hempstead Town records, as of June 17, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 20 HARRISON AVE, HEMPSTEAD, NY 11550-5402 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 20 Harrison Ave was $5,857 with exemptions applied.
Source: Nassau County and Hempstead Town assessment roll, as of June 17, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Hempstead Town |
| Municipality | Hempstead Village |
| Unified School District | Hempstead Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $349 Land $110 Building $239 | $349,000 | |
| 2025 | $5,857.00 | ||
| 2023 | $5,492.00 Homeowner's exemption Senior Citizen's exemption | $363 Land $114 Building $249 | $363,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20 Harrison Ave 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.
Wildfire risk around 20 Harrison Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% 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 | HEMPSTEAD (V) serves 56,000 people · EPA ID NY2902827 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 385 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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