Nassau County and Oyster Bay Town property record for 15 William St, Bethpage, NY 11714
| Property Type | Single Family Home |
|---|---|
| Details | 1.5 ba · 2,002 sqft · built 1963 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Company Name on File |
| Last Sale | $290,000 (Oct 2000) |
| Tax Bill | $12,840 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 49-114-00-0084 |
| Primary APN | 49-114-00-0084 |
|---|---|
| Alternative APNs |
|
| Full Baths | 1.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,002 sqft Living Area |
| 1st Floor Area | 1,144 sqft |
| Basement Area | 858 sqft |
| Finished Basement | 858 sqft |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Raised Ranch |
| Exterior Material | Composition/Composite |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Patio Area | 390 sqft |
| Canopy | 390 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 49114 00840 |
|---|---|
| Street Address | 15 WILLIAM ST |
| City | BETHPAGE |
| State | NY |
| Zip | 11714-4435 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 84,85 |
| Legal Block | 114 |
| Legal Lot Number | 84 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 4 |
| Census Block | 4016 |
| Census Tract | 520002 |
15 William St is owned by a company that bought it in October 2000.
Source: Nassau County and Oyster Bay Town records, as of June 17, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 15 WILLIAM ST, BETHPAGE, NY 11714-4435 |
| 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 |
|---|---|
| Last Sale | Oct 30, 2000 · Amount on File |
| Deed Sale | Oct 30, 2000 · Amount on File |
| Deed Book / Page | 11269 / 759 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 15 William St was $12,840.
Source: Nassau County and Oyster Bay Town assessment roll, as of June 17, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Oyster Bay Town |
| Unified School District | Bethpage Union Free School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $453 Land $205 Building $248 | $453,000 | |
| 2025 | $12,840.00 | ||
| 2023 | $12,455.00 Additional exemption filed | $485 Land $220 Building $265 | $485,000 |
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.
FEMA maps place 15 William St 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.
The area around 15 William St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | BETHPAGE WD serves 33,000 people · EPA ID NY2902817 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2025 |
| Lead | Under 1 ppb (2021–2023) 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 714 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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