Westchester County and Lewisboro Town property record for 12 Cornwall Ct, Katonah, NY 10536
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1,639 sqft · built 1968 |
| Lot Size | 2.12 acres (92,347 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $390,000 (Aug 1995) |
| Tax Bill | $16,005 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10824-009 |
| Primary APN | 10824-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Stories | 1 Story |
| Building Area | 1,639 sqft Living Area |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Lot Area | 92,347 sqft (2.12 acres) |
| Porch | Screened Porch |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Septic |
| Account Number | 10824-009 |
|---|---|
| Street Address | 12 CORNWALL CT |
| City | KATONAH |
| State | NY |
| Zip | 10536-2500 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Subdivision | SUBDIVISION INCREASE MILLER ESTATES |
| Legal Block | 9- |
| Legal Lot Number | 1.0 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | LEWISBORO |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12501 |
12 Cornwall Ct is owned and occupied by two individuals who bought it in August 1995.
Source: Westchester County and Lewisboro Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | CORNWALL CT, KATONAH, NY 10536 |
| 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 | Aug 29, 1995 · Amount on File |
| Deed Sale | Aug 29, 1995 · Amount on File |
| Deed Book / Page | 11222 / 345 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 12 Cornwall Ct was $16,005 with a homeowner's exemption, up 405% from the year before.
Source: Westchester County and Lewisboro Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | Lewisboro Town |
| Unified School District | Katonah-Lewisboro Union Free School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $16,005.00 (+405.05%) Homeowner's exemption | ||
| 2025 | $3,169.00 | $54,300 (-) Land $15,900 Building $38,400 | $866,029 (+2.39%) Land $253,589 Building $612,440 |
| 2024 | Homeowner's exemption | $54,300 (-) Land $15,900 Building $38,400 | $845,795 (+8.72%) Land $247,664 Building $598,131 |
| 2023 | $54,300 Land $15,900 Building $38,400 | $777,937 Land $227,794 Building $550,143 |
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 12 Cornwall Ct in Zone X, an area of minimal flood risk.
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 | 6 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.
Wildfire risk around 12 Cornwall Ct 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 93% of the US · lower than 89% 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: EPA Safe Drinking Water Information System, as of September 2026
| Water System | LAKE KATONAH CLUB INC private · serves 356 people · EPA ID NY5903476 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2026 |
| Lead | Under 1 ppb (2023–2025) 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 55 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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