Nassau County and Oyster Bay Town property record for 30 Diamond Dr, Plainview, NY 11803
| Property Type | Single Family Home |
|---|---|
| Details | 4 ba · 2,429 sqft · built 1953 |
| Lot Size | 0.233 acres (10,150 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $242,000 (Sep 1998) |
| Tax Bill | $20,557 (2025) |
| Deeds & Mortgages | Apr 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-373-00-0015 |
| Primary APN | 12-373-00-0015 |
|---|---|
| Alternative APNs |
|
| Full Baths | 4 Baths |
|---|---|
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 2,429 sqft Living Area |
| 1st Floor Area | 1,090 sqft |
| Game Room | Game Room |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 10,150 sqft (0.233 acres) |
| Lot Dimensions | 141 ft deep x 81 ft wide |
| Porch | Open Frame Porch |
|---|---|
| Porch Area | 30 sqft |
| Deck Area | 135 sqft |
| Patio Area | 420 sqft |
| Utility Building | 255 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 12373 00150 |
|---|---|
| Street Address | 30 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 | 15 |
| 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, 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 Record |
|---|---|
| Mailing Address | 30 DIAMOND DR, PLAINVIEW, NY 11803-2118 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 2, 1998 · Amount on Record |
| Deed Sale | Sep 2, 1998 · Amount on Record |
| Deed Book / Page | 10954 / 19 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Apr 20, 2026 |
| Property Address | 30 DIAMOND DR, PLAINVIEW, NY 11803-2118 |
| Document Number | 0000025668 |
| Book / Page | 48430 / 658 |
| Instrument Date | Feb 11, 2026 |
| Instrument | 202625668 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Name | Verified Name |
|---|---|
| Address | 30 DIAMOND DR, PLAINVIEW, NY 11803-2118 |
| Document Number | M484300658, |
|---|---|
| Date | Apr 20, 2026 |
| Book Page | 48430/658 |
| Instrument | 202625668 |
| Name | ROYAL UNITED MORTGAGE LLC |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 1, 2056 |
| Rate | 6.06% |
|---|---|
| Max Rate | -1% |
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 | Plainview-Old Bethpage Central School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $741 (+1.65%) Land $374 Building $367 | $741,000 (+1.65%) | |
| 2025 | $20,557.00 (+17.17%) | ||
| 2023 | $17,545.00 Homeowner's exemption | $729 Land $368 Building $361 | $729,000 |
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 | 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 |
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 |
|---|
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 | PLAINVIEW WD public/private · serves 34,000 people · EPA ID NY2902845 |
|---|---|
| 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, 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 605 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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