Suffolk County and Islip Town property record for 26 William Ave, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.19 acres (8,276 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $2,481 (2024) |
| Deeds & Mortgages | May 2026 Sale Aug 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 78.-4-70 |
| Primary APN | 472889 78.-4-70 |
|---|---|
| Alternative APNs |
|
| Lot Area | 8,276 sqft (0.19 acres) |
|---|---|
| Lot Width | 80 ft Width |
| Account Number | 369520 |
|---|---|
| Street Address | 26 WILLIAM AVE |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-2334 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Description | X2221371Y208335 T012H00000000 |
| Legal Block | 8000 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 145706 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 26 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Individual(s) |
| Date | Document |
|---|---|
| May 14, 2026 | Deed, Transfer |
| Aug 17, 2022 | Deed, Transfer · Stand-Alone First Mortgage CARDINAL FINANCIAL COMPANY LP |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Apr 20, 2026 |
| Transfer Doc | 0133360420 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | May 14, 2026 |
| Property Address | 26 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Document Number | 0133360420 |
| Book / Page | 13336 / 420 |
| Instrument Date | Apr 20, 2026 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 26 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Investor | Possibly a Property Investor |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Aug 17, 2022 |
| Property Address | 26 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Document Number | 0131690954 |
| Book / Page | 13169 / 954 |
| Instrument Date | May 16, 2022 |
| Transaction Type | Transfer |
| Record Updated | Nov 21, 2023 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| 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 | 3058 GODWIN TER APT E1, E1, BRONX, NY 10463-5328 |
| Investor | Possibly a Property Investor |
| Document Number | 0023448732 |
|---|---|
| Date | Aug 17, 2022 |
| Instrument | 23448/732 |
| Name | CARDINAL FINANCIAL COMPANY LP |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $31,800 (-) Land $6,100 Building $25,700 | $447,887 (-) Land $85,915 Building $361,972 | |
| 2024 | $2,481.00 | $447,887 (+2.54%) Land $85,915 Building $361,972 | |
| 2023 | $31,800 (+3.25%) Land $6,100 Building $25,700 | $436,813 (+17.43%) Land $83,791 Building $353,022 | |
| 2022 | Homeowner's exemption Senior Citizen's exemption Veteran's exemption | $30,800 Land $6,100 Building $24,700 | $371,981 Land $73,672 Building $298,309 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 | 2 in force |
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 512 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures