Nassau County and Oyster Bay Town property record for 49 Helen Ave, Plainview, NY 11803 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 1,095 sqft · built 1954 |
| Lot Size | 0.149 acres (6,500 sqft) |
| Owner | Company Name on File |
| Last Sale | $475,000 (Nov 2005) |
| Tax Bill | $5,634 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 47-012-00-0028 |
| Primary APN | 47-012-00-0028 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,095 sqft Living Area |
| Gross Area | 1,305 sqft |
| 1st Floor Area | 1,095 sqft |
| Game Room | Game Room |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 6,500 sqft (0.149 acres) |
| Lot Dimensions | 100 ft deep x 65 ft wide |
| Garage Type | Attached |
| Garage Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Frame Porch |
| Porch Area | 392 sqft |
| Patio Area | 37 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 47012 00280 |
|---|---|
| Street Address | 49 HELEN AVE |
| City | PLAINVIEW |
| State | NY |
| Zip | 11803-5641 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #3 SCH DIST 019 |
| Legal Block | 12 |
| Legal Lot Number | 28 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 519802 |
Source: Nassau County and Oyster Bay Town records · APN 47-012-00-0028
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 | Company Name on File |
|---|---|
| Mailing Address | 49 HELEN AVE, PLAINVIEW, NY 11803-5641 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Nov 30, 2005 · Amount on Record |
| Deed Sale | Nov 30, 2005 · Amount on Record |
| Deed Book / Page | 12044 / 846 |
| Record Updated | Sep 20, 2026 |
Source: Nassau County and Oyster Bay Town records · Assessment roll updated June 17, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Oyster Bay Town |
| Unified School District | Plainview-Old Bethpage Central School District (KG - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $497 (-5.51%) Land $282 Building $215 | $497,000 (-5.51%) | |
| 2025 | $5,634.00 (-4.31%) | ||
| 2023 | $5,888.00 Homeowner's exemption Senior Citizen's exemption | $526 Land $305 Building $221 | $526,000 |
Source: FEMA National Flood Hazard Layer, Nassau County (36059C), updated April 5, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| 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; lenders make the official flood determination.
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