Suffolk County and Islip Town property record for 311 Grant Ave, Islip, NY 11751
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | Company Name on Record |
| Deeds & Mortgages | Nov 2022 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 319.-3-29 |
| Primary APN | 472889 319.-3-29 |
|---|---|
| Alternative APNs |
|
| Lot Area | 7,841 sqft (0.18 acres) |
|---|---|
| Lot Width | 52.8 ft Width |
| Account Number | 042550 |
|---|---|
| Street Address | 311 GRANT AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-2620 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Description | X2217713Y188178 T044H00000000 |
| Legal Block | 9000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1033 |
| Census Tract | 147401 |
Source: Suffolk County and Islip Town records, as of August 11, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 311 GRANT AVE, ISLIP, NY 11751-2620 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jul 11, 2022 |
| Transfer Doc | 0131780388 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Nov 18, 2022 |
| Property Address | 311 GRANT AVE, ISLIP, NY 11751-2620 |
| Document Number | 0131780388 |
| Book / Page | 13178 / 388 |
| Instrument Date | Jul 11, 2022 |
| Transaction Type | Transfer |
| Record Updated | Jan 2, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 311 GRANT AVE, ISLIP, NY 11751-2620 |
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 | $32,200 (-) Land $6,700 Building $25,500 | ||
| 2024 | $453,521 (+2.54%) Land $94,366 Building $359,155 | ||
| 2023 | $32,200 (-) Land $6,700 Building $25,500 | $442,308 (+13.74%) Land $92,033 Building $350,275 | |
| 2022 | Homeowner's exemption Senior Citizen's exemption | $32,200 Land $6,700 Building $25,500 | $388,889 Land $80,918 Building $307,971 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 25 (1979–2023) |
| Claims Outside the SFHA | 18 of 25 |
| Most Recent Claim | Jul 2023 · river or lake flooding |
| Claims by Event |
|
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 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 329 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 |
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