Westchester County and Mount Kisco Village property record for 51 Spring St, Mount Kisco, NY 10549
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3 ba · 3,146 sqft · built 1927 |
| Lot Size | 0.165 acres (7,194 sqft) |
| Owner | Company Name on File |
| Tax Bill | $11,941 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 555601 80.49-1-25 |
| Primary APN | 555601 80.49-1-25 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 3,146 sqft Total Area |
| 1st Floor Area | 1,563 sqft |
| 2nd Floor Area | 1,583 sqft |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1927 |
| Architectural Style | Other |
| Lot Area | 7,194 sqft (0.165 acres) |
| Lot Dimensions | 150 ft deep x 50 ft wide |
| Porch | Slab |
| Porch Area | 290 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 136800 |
|---|---|
| Street Address | 51 SPRING ST |
| City | MOUNT KISCO |
| State | NY |
| Zip | 10549-3209 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | RT-6 |
| Legal Block | 1 |
| Legal Lot Number | 25.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT KISCO |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 13000 |
51 Spring St, a duplex, is owned by a company.
Source: Westchester County and Mount Kisco Village records, as of October 21, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 305 SPRING ST, MOUNT KISCO, NY 10549-3312 |
| Owner Type | Company |
| Vesting | Company |
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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 51 Spring St was $11,941, up 763.4% from the year before.
Source: Westchester County and Mount Kisco Village assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision / Municipality | Mount Kisco Village |
| Unified School District | Bedford Central School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $11,941.00 (+763.41%) | ||
| 2025 | $1,383.00 | $75,000 (-) Land $9,900 Building $65,100 | $539,181 (-53.41%) Land $71,172 Building $468,009 |
| 2024 | $75,000 (-) Land $9,900 Building $65,100 | $1,157,408 (+10.49%) Land $152,778 Building $1,004,630 | |
| 2023 | $75,000 Land $9,900 Building $65,100 | $1,047,486 Land $138,268 Building $909,218 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 51 Spring St in Zone X, an area of minimal flood risk, though there have been 7 flood claims nearby since 1979.
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 Claims | 7 (1979–2016) |
| Claims Outside the SFHA | 4 of 7 |
| Most Recent Claim | Feb 2016 · rainfall accumulation |
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 51 Spring St is low, with a 0.01% 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 | 0.01% annual chance |
| Exposure | Indirect within ember reach |
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 | MOUNT KISCO WATER DEPARTMENT serves 11,187 people · EPA ID NY5903437 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2025 |
| Lead | 1 ppb (2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Nov 2024 |
|---|---|
| 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.
Source: FCC Broadband Data Collection, based on 279 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| Optimum Cable | 940 / 35 |
| T-Mobile Fixed Wireless | 100 / 20 |
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