Nassau County and Oyster Bay Town property record for 40 Diamond Dr, Plainview, NY 11803
| Property Type | Single Family Home |
|---|---|
| Details | 1 ba · 945 sqft · built 1953 |
| Lot Size | 0.18 acres (7,839 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $8,819 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-373-00-0018 |
| Primary APN | 12-373-00-0018 |
|---|---|
| Alternative APNs |
|
| Full Baths | 1 Bath |
|---|---|
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 945 sqft Living Area |
| 1st Floor Area | 945 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 7,839 sqft (0.18 acres) |
| Lot Dimensions | 135 ft deep x 65 ft wide |
| Porch | Open Frame Porch |
| Porch Area | 210 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 12373 00180 |
|---|---|
| Street Address | 40 DIAMOND DR |
| City | PLAINVIEW |
| State | NY |
| Zip | 11803-2118 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #3 SCH DIST 019 |
| Legal Block | 373 |
| Legal Lot Number | 18 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 519704 |
Source: Nassau County and Oyster Bay Town records · APN 12-373-00-0018
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 | 40 DIAMOND DR, PLAINVIEW, NY 11803-2118 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| 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 and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $425 (-2.07%) Land $295 Building $130 | $427,000 (-1.61%) | |
| 2025 | $8,819.00 (+9.94%) | ||
| 2023 | $8,022.00 Homeowner's exemption Senior Citizen's exemption | $434 Land $300 Building $134 | $434,000 |
Source: FEMA National Flood Hazard Layer as of April 5, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 | 4 (1979–2023) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Sep 2023 · Severe Storm And Flooding |
| Wildfire Risk | Not rated no burnable land within 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 as of December 31, 2025 · Last verified October 2026
| 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 |
Based on FCC filings for 605 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | PLAINVIEW WD public/private · serves 34,000 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2024 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | Tetrachloroethylene resolved · Jul 2017 cis-1,2-Dichloroethylene resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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