Suffolk County and Islip Town property record for 54 Union Ave, Islip, NY 11751 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.31 acres (13,504 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $650,000 (Nov 2009) |
| Tax Bill | $15,285 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 370.-4-16 |
| Primary APN | 472889 370.-4-16 |
|---|---|
| Alternative APNs |
|
| Lot Area | 13,504 sqft (0.31 acres) |
|---|---|
| Lot Width | 102 ft Width |
| Account Number | 041139 |
|---|---|
| Street Address | 54 UNION AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-3912 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | X2217841Y183776 N059N00000000H |
| Legal Block | 0004 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 147402 |
Source: Suffolk County and Islip Town records · APN 472889 370.-4-16
Assessment roll updated August 11, 2026 · Last verified August 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 | 54 UNION AVE, ISLIP, NY 11751-3912 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 17, 2009 · Amount on Record |
| Deed Sale | Nov 17, 2009 · Amount on Record |
| Prior Sale | Oct 19, 2007 · Amount on Record |
| Deed Book / Page | 12606 / 587 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Islip Town records · Assessment roll updated August 11, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Islip Union Free 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 |
|---|---|---|---|
| 2025 | $46,700 (-) Land $16,100 Building $30,600 | $657,747 (-) Land $226,761 Building $430,986 | |
| 2024 | $15,285.00 | $657,747 (+2.54%) Land $226,761 Building $430,986 | |
| 2023 | $46,700 Land $16,100 Building $30,600 | $641,484 Land $221,154 Building $420,330 |
Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · 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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