Suffolk County and Islip Town property record for 400 Islip Ave, Islip, NY 11751 · Last verified August 2026
| Property Type | Residential > Multi-Unit > Duplex |
|---|---|
| Architecture Style | Duplex Single |
| Year Built | Built 1959 |
| Square Footage | 1,857 sqft Living Area |
| Lot Size | 9,148 sqft (0.21 acres) |
| Garage | Attached, 252 sqft |
| Occupancy | Owner Occupied |
| Primary APN | 472889 295.-3-11 |
|---|---|
| Alternative APNs |
|
| Building Area | 1,857 sqft Living Area |
|---|---|
| 1st Floor | 1,051 sqft 1st Floor |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Architectural Style | Duplex Single Style |
| Lot Area | 9,148 sqft (0.21 acres) |
| Depth X Width | 125 ft x 75 ft Depth x Width |
| Garage Type | Attached Garage |
| Garage Area | 252 sqft Garage |
| Account Number | 567691 |
|---|---|
| Street Address | 400 ISLIP AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-1817 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Duplex |
| Legal Description | X2219337Y189958 T045H00000000 |
| Legal Block | 5000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Minor Civil Division | ISLIP |
| Census Blockgroup | 1 |
| Census Block | 1002 |
| Census Tract | 146205 |
Source: Suffolk County and Islip Town records · APN 472889 295.-3-11
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 | Individual Name on File |
|---|---|
| Mailing Address | 400 ISLIP AVE, ISLIP, NY 11751-1817 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Refreshed | 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 and are not market price estimates.
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $44,000 (-) Land $7,400 Building $36,600 | |
| 2024 | $619,718 (+2.54%) Land $104,225 Building $515,493 | |
| 2023 | $44,000 Land $7,400 Building $36,600 | $604,395 Land $101,648 Building $502,747 |
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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