Suffolk County and Islip Town property record for 25 Saint Marks Ln, Islip, NY 11751 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 1,306 sqft · built 1937 |
| Lot Size | 0.3 acres (13,068 sqft) |
| Owner | Individual Name on File |
| Last Sale | $527,500 (Oct 2021) |
| Deeds & Mortgages | Dec 2023 Refinance Apr 2022 Refinance + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 371.-3-18.2 |
| Primary APN | 472889 371.-3-18.2 |
|---|---|
| Alternative APNs |
|
| Building Area | 1,306 sqft Living Area |
|---|---|
| 1st Floor Area | 806 sqft |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1937 |
| Lot Area | 13,068 sqft (0.3 acres) |
| Lot Width | 60 ft Width |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Account Number | 602754 |
|---|---|
| Street Address | 25 SAINT MARKS LN |
| City | ISLIP |
| State | NY |
| Zip | 11751-4101 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | X2220001Y184495 T059H00000000 |
| Legal Block | 1000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 147402 |
Source: Suffolk County and Islip Town records · APN 472889 371.-3-18.2
Assessment roll updated August 11, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 25 SAINT MARKS LN, ISLIP, NY 11751-4101 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 21, 2023 | Deed of Trust, Mortgage · Stand-Alone Refinance TEACHERS FCU |
| Apr 20, 2022 | Deed of Trust, Mortgage · Stand-Alone Refinance TEACHERS FCU |
| Oct 08, 2021 | Deed, Transfer · Stand-Alone First Mortgage HOME POINT FINANCIAL CORPORATION |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Oct 08, 2021 · Amount on Record |
| Deed Sale | Oct 08, 2021 · Amount on Record |
| Deed Book / Page | 13123 / 641 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 25 SAINT MARKS LN, ISLIP, NY 11751-4101 |
| Transaction Type | Mortgage |
| Record Updated | Mar 26, 2024 |
| Name | Verified Name |
|---|---|
| Investor | Possibly a Property Investor |
| Document Number | 0235560558 |
|---|---|
| Date | Dec 21, 2023 |
| Book Page | 23556/558 |
| Name | TEACHERS FCU |
|---|---|
| Type | Credit Union |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 109 Months |
| Due | Jan 01, 2033 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 25 SAINT MARKS LN, ISLIP, NY 11751-4101 |
| Transaction Type | Mortgage |
| Record Updated | Jul 26, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0234070697 |
|---|---|
| Date | Apr 20, 2022 |
| Book Page | 23407/697 |
| Instrument | DN004342 |
| Name | TEACHERS FCU |
|---|---|
| Type | Credit Union |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 121 Months |
| Due | May 01, 2032 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Oct 08, 2021 |
| Property Address | 25 SAINT MARKS LN, ISLIP, NY 11751-4101 |
| Document Number | 0131230641 |
| Book / Page | 13123 / 641 |
| Instrument Date | Aug 10, 2021 |
| Transaction Type | Transfer |
| Record Updated | Jun 23, 2022 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 110 HANSON PL, RONKONKOMA, NY 11779-5909 |
| Investor | Possibly a Property Investor |
| Document Number | 00DM038898 |
|---|---|
| Date | Oct 08, 2021 |
| Instrument | DM038898 |
| Name | HOME POINT FINANCIAL CORPORATION |
|---|---|
| Type | Government Agency |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2051 |
Source: Suffolk County and Islip Town records · Assessment roll updated August 11, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Islip Union Free School District (KG - 12) |
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.
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $35,350 (-) Land $13,600 Building $21,750 | |
| 2024 | $497,887 (+2.54%) Land $191,549 Building $306,338 | |
| 2023 | $35,350 Land $13,600 Building $21,750 | $485,577 Land $186,813 Building $298,764 |
Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361031474021, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 40 individual NFIP policies nearby |
| Nearby Flood Policies | 40 in force |
| Nearby Flood Claims | 19 (1980–2023) |
| Claims Outside the SFHA | 18 of 19 |
| Most Recent Claim | Jul 2023, rainfall accumulation |
| Claims By Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 274 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Optimum Communications | Fiber | 8,000 / 8,000 |
| Verizon | Fiber | 2,300 / 2,300 |
| Optimum Communications | Cable | 940 / 35 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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