Suffolk County and Islip Town property record for 253 Union Ave, Islip, NY 11751 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Year Built | Built 1900 |
| Square Footage | 1,938 sqft Living Area |
| Lot Size | 10,890 sqft (0.25 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $651,000 (2021) |
| Tax Bill | $14,121.00 (2024) |
Source: Suffolk County and Islip Town records · APN 472889 422.-3-18
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 | 253 UNION AVE, ISLIP, NY 11751-4710 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Dec 19, 2023 | Deed of Trust, Mortgage · Line of Credit TD BANK NA |
| Oct 19, 2021 | Deed, Transfer |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 19, 2021 · Amount on Record |
| Deed Sale | Oct 19, 2021 · Amount on Record |
| Deed Book / Page | 13124 / 867 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 253 UNION AVE, ISLIP, NY 11751-4710 |
| Transaction Type | Mortgage |
| Record Updated | Mar 26, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0235550945 |
|---|---|
| Date | Dec 19, 2023 |
| Book Page | 23555/945 |
| Name | TD BANK NA |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 349 Months |
| Due | Jan 01, 2053 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Oct 19, 2021 |
| Property Address | 253 UNION AVE, ISLIP, NY 11751-4710 |
| Document Number | 0131240867 |
| Book / Page | 13124 / 867 |
| Instrument Date | Jul 22, 2021 |
| Transaction Type | Transfer |
| Record Updated | Nov 30, 2021 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 174 MAPLE ST, ISLIP, NY 11751-4622 |
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 | $43,000 (-) Land $10,800 Building $32,200 | $605,634 (-) Land $152,113 Building $453,521 | |
| 2024 | $14,121.00 | $605,634 (+2.54%) Land $152,113 Building $453,521 | |
| 2023 | $43,000 Land $10,800 Building $32,200 | $590,660 Land $148,352 Building $442,308 |
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 | Low above 7% of the US · above 11% of New York |
|---|---|
| Wildfire Likelihood | About 1 in 5,556 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | 472889 422.-3-18 |
|---|---|
| Alternative APNs |
|
| Building Area | 1,938 sqft Living Area |
|---|---|
| 1st Floor | 1,518 sqft 1st Floor |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Lot Area | 10,890 sqft (0.25 acres) |
| Lot Width | 85 ft Width |
| Account Number | 042400 |
|---|---|
| Street Address | 253 UNION AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-4710 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | X2218235Y181396 T059H00000000 |
| Legal Block | 2000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Minor Civil Division | ISLIP |
| Census Blockgroup | 2 |
| Census Block | 2001 |
| Census Tract | 147402 |
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