Westchester County and Yonkers City property record for 20 William St, Yonkers, NY 10701
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,376 sqft · built 1930 |
| Lot Size | 0.11 acres (4,792 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $125,000 (Dec 1995) |
| Tax Bill | $1,338 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 551800 1.-439-5 |
| Primary APN | 551800 1.-439-5 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 2 Stories |
| Building Area | 1,376 sqft Living Area |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Architectural Style | Traditional |
| Exterior Material | Wood |
| Lot Area | 4,792 sqft (0.11 acres) |
| Lot Dimensions | 104 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 320 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 68 sqft |
| Account Number | 204307374 |
|---|---|
| Street Address | 20 WILLIAM ST |
| City | YONKERS |
| State | NY |
| Zip | 10701-6116 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | M |
| Legal Block | 439 |
| Legal Lot Number | 5.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | YONKERS |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 1102 |
Source: Westchester County and Yonkers City records, as of October 21, 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 | 20 WILLIAM ST, YONKERS, NY 10701-6116 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 15, 1995 · Amount on Record |
| Deed Sale | Dec 15, 1995 · Amount on Record |
| Deed Book / Page | 11315 / 203 |
| Record Updated | Oct 29, 2026 |
Source: Westchester County and Yonkers City assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| Municipality | Yonkers City |
| Unified School District | Yonkers City School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,338.00 (-83.75%) | ||
| 2025 | $8,234.00 | $7,200 (-) Land $2,900 Building $4,300 | $418,605 (+3.49%) Land $168,605 Building $250,000 |
| 2024 | $7,200 (-) Land $2,900 Building $4,300 | $404,494 (+0.56%) Land $162,921 Building $241,573 | |
| 2023 | $7,200 Land $2,900 Building $4,300 | $402,234 Land $162,011 Building $240,223 | |
| 2020 | $8,294.00 |
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 | 1 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 | 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 | YONKERS CITY serves 211,569 people · EPA ID NY5903465 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2025 |
| Lead | 7 ppb (2024–2026) 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 809 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 |
May also be available: T-Mobile.
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