Nassau County and Hempstead Town property record for 509 3rd St, Franklin Square, NY 11010
| Property Type | Duplex |
|---|---|
| Details | 2 ba · 1,329 sqft · built 1952 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $475,000 (Nov 2005) |
| Tax Bill | $10,450 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 35-166-00-0021 |
| Primary APN | 35-166-00-0021 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 7 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,329 sqft Living Area |
| Gross Area | 1,539 sqft |
| 1st Floor Area | 949 sqft |
| Game Room | Game Room |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Architectural Style | Cape Cod |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Patio Area | 252 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 35166 00210 |
|---|---|
| Street Address | 509 3RD ST |
| City | FRANKLIN SQUARE |
| State | NY |
| Zip | 11010-1901 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Block | 166 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | HEMPSTEAD |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 405600 |
Source: Nassau County and Hempstead Town assessment roll, 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 File |
|---|---|
| Mailing Address | 509 3RD ST, FRANKLIN SQUARE, NY 11010-1901 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 16, 2005 · Amount on Record |
| Deed Sale | Nov 16, 2005 · Amount on Record |
| Deed Book / Page | 12038 / 337 |
| 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 |
| Elementary School District | Franklin Square Union Free School District (PK - 06) |
| Secondary School District | Sewanhaka Central High School District (07 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $498 (-0.4%) Land $278 Building $220 | $498,000 (-0.4%) | |
| 2025 | $10,450.00 (+3.52%) | ||
| 2023 | $10,095.00 Additional exemption filed | $500 Land $279 Building $221 | $500,000 |
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 | 1 in force |
| Nearby Flood Claims | 2 (1978) |
| Most Recent Claim | Dec 1978 · 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 |
|---|
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | WA OF WESTERN NASSAU public/private · serves 120,000 people · EPA ID NY2902830 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2026 |
| Lead | 1 ppb (2022–2024) 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 771 locations within half a mile, as of December 31, 2025
| 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 |
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