Westchester County and Rye Town property record for 163 William St, Rye Brook, NY 10573
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,990 sqft · built 1900 |
| Lot Size | 0.162 acres (7,058 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $14,308 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 554801 142.30-1-69 |
| Primary APN | 554801 142.30-1-69 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,990 sqft Total Area |
| 1st Floor Area | 948 sqft |
| 2nd Floor Area | 786 sqft |
| Upper Floors Area | 256 sqft |
| Attic | Attic |
| Attic Area | 256 sqft |
| Game Room | Game Room |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Traditional |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 7,058 sqft (0.162 acres) |
| Lot Dimensions | 103 ft deep x 70.3 ft wide |
| Garage Type | Detached |
| Garage Area | 600 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 114 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 00004078000 |
|---|---|
| Street Address | 163 WILLIAM ST |
| City | RYE BROOK |
| State | NY |
| Zip | 10573-4626 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | C1 COMM |
| Legal Block | 1 |
| Legal Lot Number | 69.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | RYE |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 8000 |
163 William St, a duplex, is owned by two individuals.
Source: Westchester County and Rye Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 203 WILLIAM ST, RYE BROOK, NY 10573-4623 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 163 William St was $14,308, down 9.1% from the year before.
Source: Westchester County and Rye Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | Rye Town |
| Municipality | Port Chester Village |
| Unified School District | Port Chester-Rye Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $14,308.00 (-9.06%) | ||
| 2025 | $15,734.00 | $612,700 (+5%) Land $142,200 Building $470,500 | $612,700 (+5%) Land $142,200 Building $470,500 |
| 2024 | $583,500 (+7.01%) Land $142,200 Building $441,300 | $583,500 (+7.01%) Land $142,200 Building $441,300 | |
| 2023 | $545,300 Land $135,400 Building $409,900 | $545,300 Land $135,400 Building $409,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 163 William St in Zone X, an area of minimal flood risk, though there have been 49 flood claims nearby since 1978.
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 |
| Flood Insurance Cost | Premium on File median of 22 policies |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 49 (1978–2023) |
| Claims Outside the SFHA | 7 of 49 |
| Most Recent Claim | Sep 2023 · Severe Storm And Flooding |
| Claims by Event |
|
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 163 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 | VEOLIA WATER NEW YORK, INC. RD-2 private · serves 57,301 people · EPA ID NY5903456 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2025 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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 |
May also be available: Frontier, T-Mobile.
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