Suffolk County and Islip Town property record for 21 Harrison Ave, East Islip, NY 11730
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.35 acres (15,246 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $18,000 (Oct 1994) |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 372.-4-8.2 |
| Primary APN | 472889 372.-4-8.2 |
|---|---|
| Alternative APNs |
|
| Lot Area | 15,246 sqft (0.35 acres) |
|---|---|
| Lot Width | 102 ft Width |
| Account Number | 181382 |
|---|---|
| Street Address | 21 HARRISON AVE |
| City | EAST ISLIP |
| State | NY |
| Zip | 11730-2302 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A |
| Legal Description | T061H00000000 |
| Legal Block | 2000 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 147504 |
21 Harrison Ave is owned and occupied by two individuals who bought it in October 1994.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 HARRISON AVE, EAST ISLIP, NY 11730-2302 |
| 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 | Oct 3, 1994 · Amount on File |
| Deed Sale | Oct 3, 1994 · Amount on File |
| Deed Book / Page | 11696 / 766 |
| Prior Transfer Date | Sep 26, 1994 |
| Prior Transfer Doc | 1169000766 |
| Record Updated | Oct 29, 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 | East Islip Union Free School District (PK - 12) |
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $45,000 Land $9,800 Building $35,200 | |
| 2024 | $633,803 (+2.54%) Land $138,028 Building $495,775 | |
| 2023 | $45,000 Land $9,800 Building $35,200 | $618,131 Land $134,615 Building $483,516 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Harrison Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2005.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · 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 |
| Flood Insurance Cost | Premium on File median of 14 policies |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 1 (2005) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Oct 2005 · rainfall accumulation |
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.
The area around 21 Harrison Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 | 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 274 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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