Westchester County and North Castle Town property record for 21 Limestone Rd, Armonk, NY 10504 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 2,275 sqft · built 1955 |
| Lot Size | 1.15 acres (50,094 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $923,680 (Jan 2020) |
| Tax Bill | $14,391 (2025) |
| Deeds & Mortgages | Jan 2020 Sale Aug 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 553800 108.03-2-66 |
| Primary APN | 553800 108.03-2-66 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 2,275 sqft Living Area |
| 1st Floor Area | 2,275 sqft |
| Basement Area | 1,792 sqft |
| Finished Basement | 1,792 sqft |
| Unfinished Basement | 1,792 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Exterior Material | Wood |
| Lot Area | 50,094 sqft (1.15 acres) |
| Garage Type | Attached |
| Garage Area | 250 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Sewer | Septic |
| Water Source | Well |
| Account Number | R1A |
|---|---|
| Street Address | 21 LIMESTONE RD |
| City | ARMONK |
| State | NY |
| Zip | 10504-2306 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 2 |
| Legal Lot Number | 66.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | NORTH CASTLE |
| Census Block Group | 3 |
| Census Block | 3021 |
| Census Tract | 12303 |
Source: Westchester County and North Castle Town records · APN 553800 108.03-2-66
Assessment roll updated May 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 21 LIMESTONE RD, ARMONK, NY 10504-2306 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Date | Document |
|---|---|
| Jan 28, 2020 | Grant Deed, Transfer GREAT AMERICAN TITLE AGENCY, GREAT AMERICAN TITLE AGCY |
| Aug 22, 2017 | Trustee's Deed, Transfer OTHER |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 28, 2020 · Amount on Record |
| Deed Sale | Jan 28, 2020 · Amount on Record |
| Prior Sale | Aug 22, 2017 · Amount on Record |
| Deed Document Number | 2020600173349 |
| Last Transfer Date | Feb 04, 2025 |
| Transfer Doc | 0000003429 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Jan 28, 2020 |
| Property Address | 21 LIMESTONE RD, ARMONK, NY 10504-2306 |
| Document Number | 0600173349 |
| Book / Page | 060017 / 003349 |
| Instrument Date | Jan 23, 2020 |
| Transaction Type | Transfer |
| Record Updated | Feb 24, 2020 |
| Title Company | GREAT AMERICAN TITLE AGENCY, GREAT AMERICAN TITLE AGCY |
| Amount | Amount Recorded |
|---|---|
| Tax | $3,695.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 9 HOLLY LN RYE BROOK NY 105731018, RYE BROOK, NY 10573-1018 |
| Document Type | Trustee's Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Aug 22, 2017 |
| Property Address | 21 LIMESTONE RD, ARMONK, NY 10504-2306 |
| Document Number | 0572213421 |
| Book / Page | 057221 / 003421 |
| Instrument Date | Apr 07, 2017 |
| Transaction Type | Transfer |
| Record Updated | Sep 21, 2017 |
| Title Company | OTHER |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,862.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 235 MAIN ST #540 WHITE PLAINS NY 106012421, 540, WHITE PLAINS, NY 10601-2421 |
Source: Westchester County and North Castle Town records · Assessment roll updated May 14, 2026 · Last verified August 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 | $14,391.00 | $21,985 (-) Land $2,700 Building $19,285 | $1,357,099 (+11.11%) Land $166,667 Building $1,190,432 |
| 2024 | $21,985 (-) Land $2,700 Building $19,285 | $1,221,389 (-8.33%) Land $150,000 Building $1,071,389 | |
| 2023 | $21,985 Land $2,700 Building $19,285 | $1,332,424 Land $163,636 Building $1,168,788 |
Source: FEMA National Flood Hazard Layer, Westchester County (36119C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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