Westchester County and Lewisboro Town property record for 11 Cornwall Ct, Katonah, NY 10536
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2,862 sqft · built 1969 |
| Lot Size | 2.42 acres (105,415 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $825,000 (Aug 2013) |
| Tax Bill | $18,629 (2026) |
| Deeds & Mortgages | Apr 2026 Transfer Mar 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 10824-006 |
| Primary APN | 10824-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Stories | 2 Stories |
| Building Area | 2,862 sqft Living Area |
| Attic | Attic |
| Attic Area | 422 sqft |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Architectural Style | Colonial |
| Exterior Material | Wood |
| Lot Area | 105,415 sqft (2.42 acres) |
| Garage Type | Attached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Septic |
| Account Number | 10824-006 |
|---|---|
| Street Address | 11 CORNWALL CT |
| City | KATONAH |
| State | NY |
| Zip | 10536-2501 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Subdivision | INCREASE MILLER ESTATES |
| Legal Block | 6- |
| Legal Lot Number | 1.0 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | LEWISBORO |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12501 |
Source: Westchester County and Lewisboro Town records, as of October 21, 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 Record |
|---|---|
| Mailing Address | 11 CORNWALL CT, KATONAH, NY 10536-2501 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Date | Document |
|---|---|
| Apr 2, 2026 | Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT |
| Mar 22, 2021 | Deed of Trust, Mortgage · Conventional Mortgage KEY BANK NA |
| Mar 22, 2021 | Deed of Trust, Mortgage · Stand-Alone Refinance KEY BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 21, 2013 · Amount on Record |
| Deed Sale | Aug 21, 2013 · Amount on Record |
| Deed Document Number | 2013532123736 |
| Last Transfer Date | Feb 24, 2026 |
| Transfer Doc | 0000003511 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Apr 2, 2026 |
| Property Address | 11 CORNWALL CT, KATONAH, NY 10536-2501 |
| Document Number | 0000003511 |
| Instrument Date | Feb 24, 2026 |
| Instrument | 20263511 |
| Transaction Type | Transfer |
| Record Updated | Aug 27, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Life Tenant |
| Address | 11 CORNWALL CT, KATONAH, NY 10536-2501 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Property Address | 11 CORNWALL CT, KATONAH, NY 10536-2501 |
| Transaction Type | Mortgage |
| Record Updated | Apr 9, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|
| Document Number | 0610784042 |
|---|---|
| Date | Mar 22, 2021 |
| Instrument | 610784042 |
| Name | KEY BANK NA |
|---|---|
| Type | Bank |
| Address | CLEVELAND, OH 44114 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 359 Months |
| Due | Feb 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Property Address | 11 CORNWALL CT, KATONAH, NY 10536-2501 |
| Transaction Type | Mortgage |
| Record Updated | Apr 9, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|
| Document Number | 0610784043 |
|---|---|
| Date | Mar 22, 2021 |
| Instrument | 610784043 |
| Name | KEY BANK NA |
|---|---|
| Type | Bank |
| Address | CLEVELAND, OH 44144 |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
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 | $18,629.00 (+299.85%) | ||
| 2025 | $4,659.00 | $57,800 (-) Land $16,900 Building $40,900 | $921,850 (+2.39%) Land $269,537 Building $652,313 |
| 2024 | $57,800 (-8.25%) Land $16,900 Building $40,900 | $900,312 (-0.25%) Land $263,240 Building $637,072 | |
| 2023 | $63,000 Land $16,900 Building $46,100 | $902,578 Land $242,120 Building $660,458 |
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.
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.
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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