Suffolk County and Islip Town property record for 21 40th St, Islip, NY 11751
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.35 acres (15,246 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $134,000 (Mar 1999) |
| Tax Bill | $12,147 (2024) |
| Deeds & Mortgages | Nov 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 248.-2-106 |
| Primary APN | 472889 248.-2-106 |
|---|---|
| Alternative APNs |
|
| Lot Area | 15,246 sqft (0.35 acres) |
|---|---|
| Lot Dimensions | 125 ft deep x 125 ft wide |
| Account Number | 593170 |
|---|---|
| Street Address | 21 40TH ST |
| City | ISLIP |
| State | NY |
| Zip | 11751-1125 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A |
| Legal Description | X2215136Y192772 T043H00000000 |
| Legal Subdivision | BROOKVILLE PARK |
| Legal Block | 8000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 146205 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 21 40TH ST, ISLIP, NY 11751-1125 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 31, 1999 · Amount on Record |
| Deed Sale | Mar 31, 1999 · Amount on Record |
| Deed Book / Page | 11954 / 532 |
| Prior Transfer Date | Dec 2, 1998 |
| Prior Transfer Doc | 1193000434 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 21 40TH ST, ISLIP, NY 11751-1125 |
| Document Number | 0231120042 |
| Instrument Date | Nov 22, 2019 |
| Transaction Type | Mortgage |
| Record Updated | May 18, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 21 40TH ST ISLIP NY 117511125, ISLIP, NY 11751-1125 |
| Document Number | 0231120042 |
|---|---|
| Date | Mar 4, 2020 |
| Book Page | 023112/000042 |
| Name | BETH PAGE FCU |
|---|---|
| Type | Credit Union |
| Address | BETHPAGE, NY 11714 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 3, 2050 |
| Rate Type | Adjustable Rate |
|---|
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 | $41,500 (-) Land $8,800 Building $32,700 | $584,507 (-) Land $123,944 Building $460,563 | |
| 2024 | $12,147.00 | $584,507 (+2.54%) Land $123,944 Building $460,563 | |
| 2023 | $41,500 Land $8,800 Building $32,700 | $570,055 Land $120,879 Building $449,176 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (1992) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Dec 1992 · Coastal Storm, High Tides, Heavy Rain, & Flooding |
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 99.1% of the US · lower than 99.2% 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 491 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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