Westchester County and North Castle Town property record for 21 Windmill Pl, Armonk, NY 10504
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,962 sqft · built 1959 |
| Lot Size | 1.55 acres (67,518 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $760,000 (Feb 2013) |
| Tax Bill | $20,379 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 553800 102.01-1-14 |
| Primary APN | 553800 102.01-1-14 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,962 sqft Living Area |
| 1st Floor Area | 2,962 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Architectural Style | Split Level |
| Exterior Material | Wood Siding |
| Lot Area | 67,518 sqft (1.55 acres) |
| Garage Type | Attached |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Oil |
| Sewer | Septic |
| Water Source | Commercial |
| Account Number | R1 1/2 A |
|---|---|
| Street Address | 21 WINDMILL PL |
| City | ARMONK |
| State | NY |
| Zip | 10504-2830 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-1.5 |
| Legal Block | 1 |
| Legal Lot Number | 14.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | NORTH CASTLE |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 12304 |
21 Windmill Pl is owned and occupied by two individuals who bought it in February 2013.
Source: Westchester County and North Castle Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 WINDMILL PL, ARMONK, NY 10504-2830 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 7, 2013 · Amount on File |
| Deed Sale | Feb 7, 2013 · Amount on File |
| Deed Document Number | 2013530283570 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 21 Windmill Pl was $20,379, up 19.3% from the year before.
Source: Westchester County and North Castle Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | North Castle Town |
| Unified School District | Byram Hills Central School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $20,379.00 (+19.34%) | ||
| 2025 | $17,076.00 | $17,000 (-) Land $3,500 Building $13,500 | $1,049,382 (+11.11%) Land $216,049 Building $833,333 |
| 2024 | $17,000 (-) Land $3,500 Building $13,500 | $944,444 (-8.33%) Land $194,444 Building $750,000 | |
| 2023 | $17,000 Land $3,500 Building $13,500 | $1,030,303 Land $212,121 Building $818,182 |
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.
FEMA maps place 21 Windmill Pl in Zone X, an area of minimal flood risk, though there have been 11 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 13 policies |
| 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 |
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.
Wildfire risk around 21 Windmill Pl is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 54% of New York |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 76 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Optimum Cable | 940 / 35 |
5G (outdoors only) and 4G LTE
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