Suffolk County and Islip Town property record for 438 Prospect Ave, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.45 acres (19,602 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $115,000 (Feb 1996) |
| Tax Bill | $9,711 (2024) |
| Deeds & Mortgages | Mar 2017 Mortgage Mar 2017 Loan Modification |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 96.-2-10 |
| Primary APN | 472889 96.-2-10 |
|---|---|
| Alternative APNs |
|
| Lot Area | 19,602 sqft (0.45 acres) |
|---|---|
| Lot Dimensions | 200 ft deep x 100 ft wide |
| Account Number | 300364 |
|---|---|
| Street Address | 438 PROSPECT AVE |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-1830 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AA |
| Legal Description | X2214908Y207833 T011H00000000 |
| Legal Block | 6000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 145703 |
438 Prospect Ave is owned and occupied by two individuals who bought it in February 1996.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 438 PROSPECT AVE, CENTRAL ISLIP, NY 11722-1830 |
| 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.
| Date | Document |
|---|---|
| Mar 1, 2017 | Deed of Trust, Mortgage · Conventional Mortgage SANTANDER BK NA |
| Mar 30, 2017 | Loan Modification, Consolidation and Extension, Mortgage · Conventional Mortgage SANTANDER BK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 16, 1996 · Amount on File |
| Deed Sale | Feb 16, 1996 · Amount on File |
| Deed Book / Page | 11762 / 737 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 438 PROSPECT AVE, CENTRAL ISLIP, NY 11722-1830 |
| Document Number | 0228030819 |
| Instrument Date | Mar 1, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 13, 2020 |
| Title Company | FIRST EQUITY ABSTRACT CORPORATION, FIRST EQTY ABS CORP |
| Name | Verified Name |
|---|---|
| Address | 438 PROSPECT AVE CENTRAL ISLIP NY 117221830, CENTRAL ISLIP, NY 11722-1830 |
| Document Number | 0228030819 |
|---|---|
| Date | Mar 30, 2017 |
| Book Page | 022803/000819 |
| Name | SANTANDER BK NA |
|---|---|
| Type | Bank |
| Address | WILMINGTON, DE 19801 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 29, 2047 |
| Document Type | Loan Modification, Consolidation and Extension |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Mar 30, 2017 |
| Property Address | 438 PROSPECT AVE, CENTRAL ISLIP, NY 11722-1830 |
| Document Number | 0228030820 |
| Book / Page | 022803 / 000820 |
| Instrument Date | Mar 1, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 14, 2020 |
| Title Company | FIRST EQUITY ABSTRACT CORPORATION, FIRST EQTY ABS CORP |
| Name | Verified Name |
|---|---|
| Address | 438 PROSPECT AVE CENTRAL ISLIP NY 117221830, CENTRAL ISLIP, NY 11722-1830 |
| Document Number | 228030820 |
|---|---|
| Date | Mar 30, 2017 |
| Book Page | 022803/000820 |
| Name | SANTANDER BK NA |
|---|---|
| Type | Bank |
| Address | WILMINGTON, DE 19801 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 29, 2047 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.87% |
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 | Central Islip Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $34,000 Land $9,400 Building $24,600 | $478,873 (-) Land $132,394 Building $346,479 | |
| 2024 | $9,711.00 | $478,873 (+2.54%) Land $132,394 Building $346,479 | |
| 2023 | $34,000 Land $9,400 Building $24,600 | $467,033 Land $129,121 Building $337,912 |
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.
FEMA maps place 438 Prospect Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 438 Prospect 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 384 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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