Westchester County and Ossining Town property record for 41 1/2 William St, Ossining, NY 10562
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,500 sqft · built 1892 |
| Lot Size | 0.06 acres (2,614 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $7,121 (2026) |
| Deeds & Mortgages | Jun 2026 Transfer Oct 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 554203 97.07-4-68 |
| Primary APN | 554203 97.07-4-68 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,500 sqft Living Area |
| 1st Floor Area | 600 sqft |
| Upper Floors Area | 300 sqft |
| Year Built | Built 1892 |
|---|---|
| Effective Year Built | Effective 1892 |
| Architectural Style | Traditional |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 2,614 sqft (0.06 acres) |
| Lot Dimensions | 104 ft deep x 25 ft wide |
| Porch | Covered Porch |
| Porch Area | 148 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 41 1/2 WILLIAM ST |
|---|---|
| City | OSSINING |
| State | NY |
| Zip | 10562-5530 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 4 |
| Legal Lot Number | 68.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | OSSINING |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 13304 |
41 1/2 William St is owned and occupied by an individual who acquired it in June 2026.
Source: Westchester County and Ossining Town records, as of October 21, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 41 WILLIAM ST, OSSINING, NY 10562-5530 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jun 11, 2026 | Transfer on Death Deed, Transfer NONE LISTED ON DOCUMENT |
| Oct 24, 2018 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jun 5, 2026 |
| Transfer Doc | 0000003781 |
| Record Updated | Oct 29, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Jun 11, 2026 |
| Property Address | 41 1/2 WILLIAM ST, OSSINING, NY 10562-5530 |
| Document Number | 0000003781 |
| Instrument Date | Jun 5, 2026 |
| Instrument | 20263781 |
| Transaction Type | Transfer |
| Record Updated | Aug 30, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 41 1/2 WILLIAM ST, OSSINING, NY 10562-5530 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Oct 24, 2018 |
| Property Address | 41 1/2 WILLIAM ST, OSSINING, NY 10562-5530 |
| Document Number | 0582853207 |
| Book / Page | 058285 / 003207 |
| Instrument Date | Oct 12, 2018 |
| Transaction Type | Transfer |
| Record Updated | Nov 2, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 41 1/2 WILLIAM ST OSSINING NY 105625530, OSSINING, NY 10562-5530 |
The 2026 property tax bill for 41 1/2 William St was $7,121 with exemptions applied, down 49.1% from the year before.
Source: Westchester County and Ossining Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | Ossining Town |
| Municipality | Ossining Village |
| Unified School District | Ossining Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $7,121.00 (-49.09%) Homeowner's exemption Senior Citizen's exemption | ||
| 2025 | $13,988.00 | $393,000 (+13.88%) Land $191,400 Building $201,600 | $393,000 (+13.88%) Land $191,400 Building $201,600 |
| 2024 | Homeowner's exemption Senior Citizen's exemption | $345,100 (+7.37%) Land $102,100 Building $243,000 | $345,100 (+7.37%) Land $102,100 Building $243,000 |
| 2023 | $321,400 Land $102,100 Building $219,300 | $321,400 Land $102,100 Building $219,300 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 41 1/2 William St in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2009.
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 | 1 in force |
| Nearby Flood Claims | 2 (2009–2021) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
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 41 1/2 William St 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 | OSSINING WATER DEPARTMENT serves 30,000 people · EPA ID NY5903451 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2025 |
| Lead | 3 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| 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 616 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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