Suffolk County and Islip Town property record for 455 Prospect Ave, Central Islip, NY 11722
| Property Type | Duplex |
|---|---|
| Lot Size | 0.5 acres (21,780 sqft) |
| Owner | Individual Name on File |
| Last Sale | $570,000 (Oct 2025) |
| Deeds & Mortgages | Oct 2025 Sale & Mortgage Aug 2023 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 76.-4-44 |
| Primary APN | 472889 76.-4-44 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|
| Architectural Style | Duplex Single |
|---|---|
| Lot Area | 21,780 sqft (0.5 acres) |
| Lot Dimensions | 200 ft deep x 300 ft wide |
| Account Number | 301910 |
|---|---|
| Street Address | 455 PROSPECT AVE |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-1829 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | AA |
| Legal Description | X2215205Y208162 T011H00000000 |
| Legal Block | 6000 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 145703 |
455 Prospect Ave, a duplex, is owned by an individual who bought it in October 2025.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1015 CLEVERSON ST, UNIONDALE, NY 11553 |
| Owner Type | Individual |
| Vesting | Individual(s) |
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 |
|---|---|
| Oct 14, 2025 | Deed, Transfer · Conventional Mortgage GREAT HOME MORTGAGE OF NEW YORK |
| Aug 7, 2023 | Deed, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 14, 2025 · Amount on File |
| Deed Sale | Oct 14, 2025 · Amount on File |
| Prior Sale | Aug 7, 2023 · Amount on File |
| Deed Book / Page | 13312 / 721 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Oct 14, 2025 |
| Property Address | 455 PROSPECT AVE, CENTRAL ISLIP, NY 11722-1829 |
| Document Number | 0133120721 |
| Book / Page | 13312 / 721 |
| Instrument Date | Sep 30, 2025 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2026 |
| Title Company | E-CHICAGO TITLE, CHICAGO TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1015 CLEVERSON ST, UNIONDALE, NY 11553 |
| Document Number | 0023688887 |
|---|---|
| Date | Oct 14, 2025 |
| Instrument | 23688/887 |
| Name | GREAT HOME MORTGAGE OF NEW YORK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2055 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Aug 7, 2023 |
| Property Address | 455 PROSPECT AVE, CENTRAL ISLIP, NY 11722-1829 |
| Document Number | 0132120474 |
| Book / Page | 13212 / 474 |
| Instrument Date | May 19, 2023 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2026 |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 444 ROUTE 111, SMITHTOWN, NY 11787-4773 |
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 | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $34,200 (-12.08%) Land $11,100 Building $23,100 | |
| 2024 | $38,900 (-) Land $23,700 Building $15,200 | $547,888 (+2.54%) Land $333,803 Building $214,085 |
| 2023 | $38,900 Land $23,700 Building $15,200 | $534,340 Land $325,549 Building $208,791 |
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 455 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.
Wildfire risk around 455 Prospect Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 95% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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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