Suffolk County and Islip Town property record for 501 Saint Marks Ln, Islip, NY 11751
| Property Type | Multi-Family Dwellings |
|---|---|
| Lot Size | 44.2 acres (1,925,352 sqft) |
| Owner | 2 Company Names on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 463.-1-3 |
| Primary APN | 472889 463.-1-3 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|
| Architectural Style | Multi-Family |
|---|---|
| Lot Area | 1,925,352 sqft |
| Account Number | 039580 |
|---|---|
| Street Address | 501 ST MARKS LN |
| State | NY |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Local Zoning Code | AAA |
| Legal Description | X2219886Y179394 N059H00000000H |
| Legal Block | 3000 |
| Legal Lot Number | 100 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 147402 |
501 Saint Marks Ln, a residential property, is owned by a company.
Source: Suffolk County and Islip Town records, as of August 11, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Owner Type | Company |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 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 | Islip Union Free School District (KG - 12) |
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $487,500 Land $420,000 Building $67,500 | |
| 2024 | $6,866,197 (+2.54%) Land $5,915,493 Building $950,704 | |
| 2023 | $487,500 Land $420,000 Building $67,500 | $6,696,429 Land $5,769,231 Building $927,198 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 501 Saint Marks Ln in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 127 policies |
| Nearby Flood Policies | 127 in force |
| Nearby Flood Claims | 187 (1978–2023) |
| Claims Outside the SFHA | 79 of 187 |
| Most Recent Claim | Jul 2023 · rainfall accumulation |
| Claims by Event |
|
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.
Wildfire risk around 501 Saint Marks Ln is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 89% of New York |
|---|---|
| Wildfire Likelihood | 0.02% 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 16 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Optimum Cable · Fiber in parts of the area | 940 / 35 |
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