Nassau County and Oyster Bay Town property record for 21 Barnum Ave, #A, Plainview, NY 11803
| Property Type | Duplex |
|---|---|
| Details | 4 ba · 2,730 sqft · built 1980 |
| Lot Size | 0.321 acres (14,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $800,000 (Apr 2021) |
| Tax Bill | $19,791 (2025) |
| Deeds & Mortgages | Apr 2021 Sale & Mortgage May 2017 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 46-619-00-0114 |
| Primary APN | 46-619-00-0114 |
|---|---|
| Alternative APNs |
|
| Full Baths | 4 Baths |
|---|---|
| Total Rooms | 11 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,730 sqft Living Area |
| Gross Area | 3,166 sqft |
| 1st Floor Area | 1,248 sqft |
| Game Room | Game Room |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | Concrete |
| Roof Material | Other |
| Lot Area | 14,000 sqft (0.321 acres) |
| Lot Dimensions | 140 ft deep x 105 ft wide |
| View / Lot | Private Road |
| Garage Type | Attached |
| Garage Area | 436 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Frame Porch |
|---|---|
| Porch Area | 115 sqft |
| Deck Area | 405 sqft |
| Patio Area | 400 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 46619 01140 |
|---|---|
| Street Address | 21 BARNUM AVE, A |
| City | PLAINVIEW |
| State | NY |
| Zip | 11803-6005 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | TOWN #3 SCH DIST 021 |
| Legal Block | 619 |
| Legal Lot Number | 114 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 519900 |
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 | 21 BARNUM AVE, A, PLAINVIEW, NY 11803-6005 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Apr 22, 2021 | Bargain and Sale Deed, Transfer · Conventional Mortgage FREEDOM MORTGAGE |
| May 18, 2017 | Deed of Trust, Mortgage · Line of Credit BETHPAGE FCU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 22, 2021 · Amount on Record |
| Deed Sale | Apr 22, 2021 · Amount on Record |
| Prior Sale | Sep 29, 2015 · Amount on Record |
| Deed Document Number | 2021-053047 |
| Deed Book / Page | 14068 / 905 |
| Prior Transfer Date | Sep 24, 2015 |
| Prior Transfer Doc | 0132670827 |
| Record Updated | Oct 29, 2026 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Apr 22, 2021 |
| Property Address | 21 BARNUM AVE # A, A, PLAINVIEW, NY 11803-6005 |
| Document Number | 0140680905 |
| Book / Page | 14068 / 905 |
| Map Reference | MAP 39 CASE 289 |
| Instrument Date | Apr 12, 2021 |
| Instrument | 2021-053047 |
| Transaction Type | Transfer |
| Record Updated | May 26, 2021 |
| Title Company | STEWART TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $3,200.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 21 BARNUM AVEA, 21, PLAINVIEW, NY 11803 |
| Name | Verified Name |
|---|---|
| Address | 117 126TH ST, SOUTH OZONE PARK, NY 11420 |
| Document Number | 20210530484531521 |
|---|---|
| Date | Apr 22, 2021 |
| Instrument | 2021-0530484531521 |
| Name | FREEDOM MORTGAGE |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NASSAU NY |
| Property Address | 21 BARNUM AVE # A, A, PLAINVIEW, NY 11803-6005 |
| Document Number | 0422110310 |
| Instrument Date | May 18, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 23, 2018 |
| Title Company | LAND BOUND SERVICES LLC, LAND BOUND SVCS LLC |
| Name | Verified Name |
|---|---|
| Address | 21 BARNUM AVE #A PLAINVIEW NY 118036005, A, PLAINVIEW, NY 11803-6005 |
| Document Number | 0422110310 |
|---|---|
| Date | Jun 29, 2017 |
| Book Page | 042211/000310 |
| Instrument | 63897 |
| Name | BETHPAGE FCU |
|---|---|
| Type | Credit Union |
| Address | BETHPAGE, NY 11714 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 28, 2047 |
| Rate Type | Adjustable Rate |
|---|
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 | $595 (-18.16%) Land $296 Building $299 | $595,000 (-26.27%) | |
| 2025 | $19,791.00 (+4.27%) Homeowner's exemption | $727 (+0.97%) Land $402 Building $325 | $807,000 (+12.08%) |
| 2023 | $18,981.00 Additional exemption filed | $720 Land $367 Building $353 | $720,000 |
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 |
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 | Low lower than 99.1% of the US · lower than 99.2% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 597 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 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures