Suffolk County and Islip Town property record for 511 Ralph Ave, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.45 acres (19,602 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $300,000 (Mar 2004) |
| Tax Bill | $7,935 (2024) |
| Deeds & Mortgages | Oct 2022 Mortgage Mar 2021 Refinance |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 97.-1-19 |
| Primary APN | 472889 97.-1-19 |
|---|---|
| Alternative APNs |
|
| Lot Area | 19,602 sqft (0.45 acres) |
|---|---|
| Lot Dimensions | 200 ft deep x 100 ft wide |
| Account Number | 300240 |
|---|---|
| Street Address | 511 RALPH AVE |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-1921 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AA |
| Legal Description | X2216888Y208214 T011H00000000 |
| Legal Subdivision | MOTOR PARKWAY ACREAGE |
| Legal Block | 7000 |
| Legal Lot Number | 100 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 145703 |
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 | 511 RALPH AVE, CENTRAL ISLIP, NY 11722-1921 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
| Date | Document |
|---|---|
| Oct 7, 2022 | Deed of Trust, Mortgage · FHA Mortgage SECRETARY HOUSING URBAN DEVELOPMENT |
| Mar 9, 2021 | Deed of Trust, Mortgage · Stand-Alone Refinance SECRETARY HOUSING URBAN DEVELOPMENT |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 18, 2004 · Amount on Record |
| Deed Sale | Mar 18, 2004 · Amount on Record |
| Prior Sale | Jul 28, 2003 · Amount on Record |
| Deed Book / Page | 12307 / 985 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 511 RALPH AVE, CENTRAL ISLIP, NY 11722-1921 |
| Transaction Type | Mortgage |
| Record Updated | Dec 19, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0234560291 |
|---|---|
| Date | Oct 7, 2022 |
| Book Page | 23456/291 |
| Name | SECRETARY HOUSING URBAN DEVELOPMENT |
|---|---|
| Type | Government Agency |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 253 Months |
| Due | Nov 1, 2043 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 511 RALPH AVE, CENTRAL ISLIP, NY 11722-1921 |
| Transaction Type | Mortgage |
| Record Updated | Apr 13, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0232430715 |
|---|---|
| Date | Mar 9, 2021 |
| Book Page | 23243/715 |
| Instrument | DL060006 |
| Name | SECRETARY HOUSING URBAN DEVELOPMENT |
|---|---|
| Type | Government Agency |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 277 Months |
| Due | Apr 1, 2044 |
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 | $28,100 (-) Land $10,200 Building $17,900 | $395,775 (-) Land $143,662 Building $252,113 | |
| 2024 | $7,935.00 | $395,775 (+2.54%) Land $143,662 Building $252,113 | |
| 2023 | $28,100 Land $10,200 Building $17,900 | $385,989 Land $140,110 Building $245,879 |
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 | 1 in force |
| Nearby Flood Claims | 6 (1978–1981) |
| Claims Outside the SFHA | 6 of 6 |
| Most Recent Claim | Feb 1981 · rainfall accumulation |
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 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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