Suffolk County and Islip Town property record for 34 William Ave, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.32 acres (13,939 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $138,000 (Dec 2011) |
| Tax Bill | $9,586 (2024) |
| Deeds & Mortgages | May 2022 Refinance Jul 2018 Refinance + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 78.-4-74 |
| Primary APN | 472889 78.-4-74 |
|---|---|
| Alternative APNs |
|
| Lot Area | 13,939 sqft (0.32 acres) |
|---|---|
| Lot Dimensions | 175 ft deep x 80 ft wide |
| Account Number | 369480 |
|---|---|
| Street Address | 34 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 | X2221683Y208412 T012H00000000 |
| Legal Subdivision | ISLIP ESTATES |
| 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| May 10, 2022 | Deed of Trust, Mortgage · Stand-Alone Refinance RELIANCE FIRST CAPITAL LLC |
| Jul 2, 2018 | Deed of Trust, Mortgage · Stand-Alone Refinance SECRETARY HOUSING URBAN DEVELOPMENT |
| Oct 28, 2020 | Deed of Trust, Mortgage · FHA Mortgage SECRETARY HOUSING URBAN DEVELOPMENT |
| May 10, 2022 | Quit Claim Deed, Transfer Quitclaim |
| May 1, 2018 | Loan Modification, Mortgage · Conventional Mortgage PENNYMAC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 6, 2011 · Amount on Record |
| Deed Sale | Dec 6, 2011 · Amount on Record |
| Deed Book / Page | D12678 / 631 |
| Last Transfer Date | Mar 25, 2022 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Transaction Type | Mortgage |
| Record Updated | Oct 17, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0234150717 |
|---|---|
| Date | May 10, 2022 |
| Book Page | 23415/717 |
| Name | RELIANCE FIRST CAPITAL LLC |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 349 Months |
| Due | Jun 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Transaction Type | Mortgage |
| Record Updated | Aug 23, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0229390003 |
|---|---|
| Date | Jul 2, 2018 |
| Book Page | 22939/3 |
| Instrument | 18-0120468 |
| Name | SECRETARY HOUSING URBAN DEVELOPMENT |
|---|---|
| Type | Government Agency |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 349 Months |
| Due | Aug 1, 2047 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Transaction Type | Mortgage |
| Record Updated | Aug 23, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0231890780 |
|---|---|
| Date | Oct 28, 2020 |
| Book Page | 23189/780 |
| Instrument | 32790 |
| Name | SECRETARY HOUSING URBAN DEVELOPMENT |
|---|---|
| Type | Government Agency |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 337 Months |
| Due | Nov 1, 2048 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | May 10, 2022 |
| Property Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Document Number | 0131550448 |
| Book / Page | 13155 / 448 |
| Instrument Date | Mar 25, 2022 |
| Transaction Type | Transfer |
| Record Updated | Nov 15, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 34 WILLIAM AVE, CENTRAL ISLIP, NY 11722-2334 |
| Document Number | 0229940194 |
| Instrument Date | May 1, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Mar 26, 2019 |
| Name | Verified Name |
|---|---|
| Address | 34 WILLIAM AVE CENTRAL ISLIP NY 117222334, CENTRAL ISLIP, NY 11722-2334 |
| Document Number | 0229940194 |
|---|---|
| Date | Jan 4, 2019 |
| Book Page | 022994/000194 |
| Name | PENNYMAC |
|---|---|
| Address | 6101 CONDOR DR, MOORPARK, CA 93021-2602 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 3, 2049 |
| Rate | 4.12% |
|---|
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 | $30,000 (-) Land $6,100 Building $23,900 | $422,535 (-) Land $85,915 Building $336,620 | |
| 2024 | $9,586.00 | $422,535 (+2.54%) Land $85,915 Building $336,620 | |
| 2023 | $30,000 Land $6,100 Building $23,900 | $412,088 Land $83,791 Building $328,297 |
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 | 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 |
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