Nassau County and Hempstead Town property record for 646 Warren St, Baldwin, NY 11510 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 1,918 sqft · built 1930 |
| Lot Size | 0.119 acres (5,200 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $12,514 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 54-435-00-0110 |
| Primary APN | 54-435-00-0110 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,918 sqft Living Area |
| Gross Area | 2,318 sqft |
| 1st Floor Area | 500 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 5,200 sqft (0.119 acres) |
| Lot Dimensions | 65 ft deep x 80 ft wide |
| View / Lot | Canal/Waterfront |
| Garage Type | Attached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Frame Porch |
| Porch Area | 360 sqft |
| Balcony Area | 280 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 54435 01100 |
|---|---|
| Street Address | 646 WARREN ST |
| City | BALDWIN |
| State | NY |
| Zip | 11510-4332 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 110-113 |
| Legal Block | 435 |
| Legal Lot Number | 110-1 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | HEMPSTEAD |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 413803 |
Source: Nassau County and Hempstead Town records · APN 54-435-00-0110
Assessment roll updated June 17, 2026 · Last verified June 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 | 646 WARREN ST, BALDWIN, NY 11510-4332 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Nassau County and Hempstead Town records · Assessment roll updated June 17, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Hempstead Town |
| Unified School District | Baldwin Union Free School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $439 (-2.66%) Land $154 Building $285 | $439,000 (-2.66%) | |
| 2025 | $12,514.00 (+38.63%) | ||
| 2023 | $9,027.00 Homeowner's exemption Senior Citizen's exemption | $451 Land $158 Building $293 | $451,000 |
Source: FEMA National Flood Hazard Layer, Nassau County (36059C), updated April 5, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360594138033, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE |
|---|---|
| Special Flood Hazard Area | Yes |
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 8.0 ft |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Flood Insurance Cost | Premium on Record median of 204 individual NFIP policies nearby |
| Nearby Flood Policies | 204 in force |
| Nearby Flood Claims | 416 (1978–2024) |
| Claims Outside the SFHA | 106 of 416 |
| Most Recent Claim | Jan 2024 |
| Claims By Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 650 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Optimum Communications | Fiber | 8,000 / 8,000 |
| Verizon | Fiber | 2,300 / 2,300 |
| Optimum Communications | Cable | 940 / 35 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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