Suffolk County and Islip Town property record for 421 3rd Ave, Bayport, NY 11705
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $128,000 (Oct 1994) |
| Tax Bill | $9,971 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 333.-2-31 |
| Primary APN | 472889 333.-2-31 |
|---|---|
| Alternative APNs |
|
| Lot Area | 7,405 sqft (0.17 acres) |
|---|---|
| Lot Dimensions | 107 ft deep x 70 ft wide |
| Account Number | 712780 |
|---|---|
| Street Address | 421 3RD AVE |
| City | BAYPORT |
| State | NY |
| Zip | 11705-1317 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Description | X2262166Y192625 T051H00000000 |
| Legal Block | 3000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1035 |
| Census Tract | 147901 |
421 3rd Ave is owner-occupied and held in a trust since August 2012.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 421 3RD AVE, BAYPORT, NY 11705-1317 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 31, 1994 · Amount on File |
| Deed Sale | Oct 31, 1994 · Amount on File |
| Deed Book / Page | 11700 / 454 |
| Last Transfer Date | Aug 24, 2012 |
| Transfer Doc | D127040147 |
| Record Updated | Sep 20, 2026 |
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 | Bayport-Blue Point Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $30,800 Land $8,900 Building $21,900 | $433,803 (-) Land $125,352 Building $308,451 | |
| 2024 | $9,971.00 | $433,803 (+2.54%) Land $125,352 Building $308,451 | |
| 2023 | $30,800 Land $8,900 Building $21,900 | $423,077 Land $122,253 Building $300,824 |
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 421 3rd Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1991.
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 | 9 in force |
| Nearby Flood Claims | 1 (1991) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Aug 1991 · Hurricane Bob |
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.
The area around 421 3rd 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 308 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 |
5G (outdoors only) and 4G LTE
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