Westchester County and North Castle Town property record for 20 Windmill Rd, Armonk, NY 10504 · Last verified May 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,019 sqft · built 1958 |
| Lot Size | 1.01 acres (43,996 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $800,000 (Apr 2005) |
| Tax Bill | $16,647 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 553800 101.04-2-24 |
| Primary APN | 553800 101.04-2-24 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 3,019 sqft Living Area |
| 1st Floor Area | 3,019 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Split Level |
| Exterior Material | Wood Siding |
| Lot Area | 43,996 sqft (1.01 acres) |
| Garage Type | Basement |
| Porch | Porch |
| Porch Area | 268 sqft |
| Patio Area | 228 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Oil |
| Sewer | Septic |
| Water Source | Commercial |
| Account Number | R1A |
|---|---|
| Street Address | 20 WINDMILL RD |
| City | ARMONK |
| State | NY |
| Zip | 10504-2613 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | WINDMILL FARM SECTION 3 |
| Legal Block | 2 |
| Legal Lot Number | 24.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | NORTH CASTLE |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 12304 |
Source: Westchester County and North Castle Town records · APN 553800 101.04-2-24
Assessment roll updated May 14, 2026 · Last verified May 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 File |
|---|---|
| Mailing Address | 20 WINDMILL RD, ARMONK, NY 10504-2613 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 08, 2005 · Amount on Record |
| Deed Sale | Apr 08, 2005 · Amount on Record |
| Prior Sale | Jun 17, 1997 · Amount on Record |
| Deed Document Number | 2005450620570 |
| Prior Transfer Date | Apr 02, 2003 |
| Prior Transfer Doc | 0431300222 |
| Record Updated | Jun 08, 2026 |
Source: Westchester County and North Castle Town records · Assessment roll updated May 14, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | North Castle Town |
| Unified School District | Byram Hills Central School District (KG - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $16,647.00 | $18,100 (-) Land $3,000 Building $15,100 | $1,117,284 (+11.11%) Land $185,185 Building $932,099 |
| 2024 | $18,100 (-) Land $3,000 Building $15,100 | $1,005,556 (-8.33%) Land $166,667 Building $838,889 | |
| 2023 | $18,100 Land $3,000 Building $15,100 | $1,096,970 Land $181,818 Building $915,152 |
Source: FEMA National Flood Hazard Layer, Westchester County (36119C), updated September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361190123041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 13 individual NFIP policies nearby |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 11 (1978–2020) |
| Claims Outside the SFHA | 9 of 11 |
| Most Recent Claim | Jul 2020, other causes |
| Wildfire Risk | Low above 20% of the US · above 55% of New York |
|---|---|
| Wildfire Likelihood | About 1 in 5,263 per year |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 83 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Verizon | Fiber | 2,300 / 2,300 |
| Optimum Communications | Cable | 940 / 35 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE (outdoors only)
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