Suffolk County and Islip Town property record for 841 Islip Ave, Central Islip, NY 11722
| Property Type | Duplex |
|---|---|
| Lot Size | 0.51 acres (22,216 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $145,000 (Dec 1997) |
| Tax Bill | $11,961 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 229.-1-43.1 |
| Primary APN | 472889 229.-1-43.1 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|
| Architectural Style | Duplex Single |
|---|---|
| Lot Area | 22,216 sqft (0.51 acres) |
| Lot Dimensions | 225 ft deep x 100 ft wide |
| Account Number | 559014 |
|---|---|
| Street Address | 841 ISLIP AVE |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-4815 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | AA |
| Legal Description | X2218874Y196051 T023H00000000 |
| Legal Subdivision | MAP OF COLUMBUS PARK #2 |
| Legal Block | 9000 |
| Legal Lot Number | 100 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 146206 |
841 Islip Ave, a duplex, is owned and occupied by two individuals who acquired it in January 1999.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 841 ISLIP AVE, CENTRAL ISLIP, NY 11722-4815 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 1, 1997 · Amount on File |
| Deed Sale | Dec 1, 1997 · Amount on File |
| Prior Sale | Aug 27, 1997 · Amount on File |
| Deed Book / Page | 11865 / 171 |
| Last Transfer Date | Jan 20, 1999 |
| Transfer Doc | 1194000921 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Islip Union Free School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $39,300 Land $11,400 Building $27,900 | $553,521 (-) Land $160,563 Building $392,958 | |
| 2024 | $11,961.00 | $553,521 (+2.54%) Land $160,563 Building $392,958 | |
| 2023 | $39,300 Land $11,400 Building $27,900 | $539,835 Land $156,593 Building $383,242 |
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.
FEMA maps place 841 Islip Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 841 Islip Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 97.9% 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 | SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| Water Quality | Asbestos resolved · Jul 2020 |
|---|---|
| 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 342 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 2,300 / 2,300 |
May also be available: T-Mobile.
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