Nassau County and Hempstead Town property record for 143 William St, Hempstead, NY 11550
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 2,001 sqft · built 1954 |
| Lot Size | 0.23 acres (10,020 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $8,890 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 34-411-00-0313 |
| Primary APN | 34-411-00-0313 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,001 sqft Living Area |
| 1st Floor Area | 1,142 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Architectural Style | Cape Cod |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 10,020 sqft (0.23 acres) |
| Lot Dimensions | 161 ft deep x 60 ft wide |
| View / Lot | Major Commercial Strip |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Frame Porch |
|---|---|
| Porch Area | 112 sqft |
| Deck Area | 170 sqft |
| Patio Area | 170 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 34411 03130 |
|---|---|
| Street Address | 143 WILLIAM ST |
| City | HEMPSTEAD |
| State | NY |
| Zip | 11550-5849 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 313-315 |
| Legal Block | 411 |
| Legal Lot Number | 313-3 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | HEMPSTEAD |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 407203 |
Source: Nassau County and 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 | 143 WILLIAM ST, HEMPSTEAD, NY 11550-5849 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
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 | $395 (-) Land $158 Building $237 | $395,000 (-) | |
| 2025 | $8,890.00 (-1.6%) | ||
| 2023 | $9,035.00 Homeowner's exemption | $395 Land $158 Building $237 | $395,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 | 2 in force |
| Nearby Flood Claims | 1 (1979) |
| Most Recent Claim | Aug 1979 · rainfall accumulation |
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 | 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 627 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 |
May also be available: T-Mobile.
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