Westchester County and New Castle Town property record for 121 Old Roaring Brook Rd, Mount Kisco, NY 10549
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 5,617 sqft · built 1935 |
| Lot Size | 3.24 acres (141,134 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,150,000 (Jan 2007) |
| Flood Zone | Zone X (minimal risk) |
| APN | 553600 82.17-1-7 |
| Primary APN | 553600 82.17-1-7 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 2 Stories |
| Building Area | 5,617 sqft Living Area |
| 1st Floor Area | 3,197 sqft |
| 2nd Floor Area | 2,420 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1935 |
|---|---|
| Effective Year Built | Effective 1935 |
| Architectural Style | Contemporary |
| Exterior Material | Concrete |
| Lot Area | 141,134 sqft (3.24 acres) |
| Garage Type | Detached |
| Garage Area | 625 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | In-Ground Vinyl Pool |
| Porch | Slab |
| Porch Area | 1,294 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Water Source | Commercial |
| Account Number | 2507000 |
|---|---|
| Street Address | 121 OLD ROARING BROOK RD |
| City | MOUNT KISCO |
| State | NY |
| Zip | 10549-3719 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-2A |
| Legal Block | 1 |
| Legal Lot Number | 7.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | NEW CASTLE |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 13104 |
Source: Westchester County and New Castle Town assessment roll, APN 553600 82.17-1-7, as of 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 | 121 OLD ROARING BROOK RD, MOUNT KISCO, NY 10549-3719 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 26, 2007 · Amount on Record |
| Deed Sale | Jan 26, 2007 · Amount on Record |
| Deed Document Number | 2007470020014 |
| Record Updated | Jun 08, 2026 |
Source: Westchester County and New Castle Town assessment roll as of May 14, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | New Castle Town |
| Unified School District | Chappaqua 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 | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $322,000 (-) Land $130,000 Building $192,000 | $2,308,244 (+0.86%) Land $931,900 Building $1,376,344 |
| 2024 | $322,000 (-) Land $130,000 Building $192,000 | $2,288,558 (+5.19%) Land $923,952 Building $1,364,606 |
| 2023 | $322,000 Land $130,000 Building $192,000 | $2,175,675 Land $878,378 Building $1,297,297 |
Source: FEMA National Flood Hazard Layer, Westchester County (36119C), as of September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361190131043, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 21 policies |
| Nearby Flood Policies | 21 in force |
| Nearby Flood Claims | 11 (1979–2021) |
| Claims Outside the SFHA | 6 of 11 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| Wildfire Risk | Low lower than 80% of the US · above 54% of New York |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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, 28 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 980 / 880 |
| Optimum Communications Cable | 940 / 35 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Source: EPA Safe Drinking Water Information System, water system NY5903442, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | NEW CASTLE/STANWOOD W.D. serves 17,116 people |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2026) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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