Suffolk County and Islip Town property record for 21 Harbor Ave, Islip, NY 11751
| Property Type | Single Family Home |
|---|---|
| Details | 2,136 sqft · built 1970 |
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | Company Name on Record |
| Last Sale | $549,000 (Aug 2018) |
| Deeds & Mortgages | Nov 2020 Refinance Jul 2020 Loan Modification + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 396.-1-31 |
| Primary APN | 472889 396.-1-31 |
|---|---|
| Alternative APNs |
|
| Building Area | 2,136 sqft Living Area |
|---|---|
| 1st Floor Area | 1,011 sqft |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 7,405 sqft (0.17 acres) |
| Lot Width | 75 ft Width |
| Garage Type | Attached |
| Garage Area | 399 sqft |
| Account Number | 600830 |
|---|---|
| Street Address | 21 HARBOR AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-4206 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Description | X2215942Y182506 T059H00000000 |
| Legal Block | 6000 |
| Legal Lot Number | 100 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 147402 |
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 | 21 HARBOR AVE, ISLIP, NY 11751-4206 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
| Date | Document |
|---|---|
| Nov 12, 2020 | Deed of Trust, Mortgage · Stand-Alone Refinance WELLS FARGO BANK NA |
| Jul 31, 2020 | Loan Modification, Consolidation and Extension, Mortgage · Conventional Mortgage WELLS FARGO BK |
| Aug 27, 2018 | Deed, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 27, 2018 · Amount on Record |
| Deed Sale | Aug 27, 2018 · Amount on Record |
| Deed Book / Page | 12975 / 550 |
| Last Transfer Date | Oct 25, 2024 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 21 HARBOR AVE, ISLIP, NY 11751-4206 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0231940048 |
|---|---|
| Date | Nov 12, 2020 |
| Book Page | 23194/48 |
| Instrument | DL035059 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 1, 2050 |
| Document Type | Loan Modification, Consolidation and Extension |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 21 HARBOR AVE, ISLIP, NY 11751-4206 |
| Document Number | 0231940049 |
| Instrument Date | Jul 31, 2020 |
| Transaction Type | Mortgage |
| Record Updated | May 10, 2021 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 21 HARBOR AVE ISLIP NY 117514206, ISLIP, NY 11751-4206 |
| Document Number | 0231940049 |
|---|---|
| Date | Nov 12, 2020 |
| Book Page | 023194/000049 |
| Name | WELLS FARGO BK |
|---|---|
| Type | Bank |
| Address | MINNEAPOLIS, MN 55467-8000 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 11, 2050 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 2.87% |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Aug 27, 2018 |
| Property Address | 21 HARBOR AVE, ISLIP, NY 11751-4206 |
| Document Number | 0129750550 |
| Book / Page | 12975 / 550 |
| Instrument Date | Jul 23, 2018 |
| Transaction Type | Transfer |
| Record Updated | Aug 20, 2021 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21 KENT LN, FARMINGDALE, NY 11735-6123 |
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 | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $47,400 (-) Land $8,700 Building $38,700 | |
| 2024 | $667,605 (+2.54%) Land $122,535 Building $545,070 | |
| 2023 | $47,400 Land $8,700 Building $38,700 | $651,098 Land $119,505 Building $531,593 |
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.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 53 policies |
| Nearby Flood Policies | 53 in force |
| Nearby Flood Claims | 75 (1978–2021) |
| Claims Outside the SFHA | 44 of 75 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| 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 | 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 396 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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