Westchester County and Mount Vernon City property record for 11 Greendale Ave, Mount Vernon, NY 10553
| Property Type | Duplex |
|---|---|
| Lot Size | 0.11 acres (4,792 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $16,955 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 550800 165.81-4043-9 |
| Primary APN | 550800 165.81-4043-9 |
|---|---|
| Alternative APNs |
|
| Architectural Style | Duplex Single |
|---|---|
| Lot Area | 4,792 sqft (0.11 acres) |
| Account Number | 102520 |
|---|---|
| Street Address | 11 GREENDALE AVE |
| City | MOUNT VERNON |
| State | NY |
| Zip | 10553-1514 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Block | 4043 |
| Legal Lot Number | 9.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 3300 |
11 Greendale Ave, a duplex, is owned and occupied by an individual.
Source: Westchester County and Mount Vernon City records, as of October 21, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 11 GREENDALE AVE, MOUNT VERNON, NY 10553-1514 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 11 Greendale Ave was $16,955 with exemptions applied, up 31% from the year before.
Source: Westchester County and Mount Vernon City assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| Municipality | Mount Vernon City |
| Unified School District | Mount Vernon School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $16,955.00 (+31.03%) Homeowner's exemption Senior Citizen's exemption | ||
| 2025 | $12,940.00 | $12,000 (-) Land $2,800 Building $9,200 | $666,667 (+6.67%) Land $155,556 Building $511,111 |
| 2024 | Homeowner's exemption Senior Citizen's exemption | $12,000 (-) Land $2,800 Building $9,200 | $625,000 (-10.94%) Land $145,833 Building $479,167 |
| 2023 | $12,000 Land $2,800 Building $9,200 | $701,755 Land $163,743 Building $538,012 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 Greendale Ave in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1983.
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 | 1 in force |
| Nearby Flood Claims | 3 (1983–1984) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Jul 1984 · tidal / storm surge |
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 11 Greendale Ave is low, with less than 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 99.1% of the US · lower than 99.2% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 VERNON WATER DEPARTMENT serves 73,893 people · EPA ID NY5903441 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2025 |
| Lead | 7 ppb (2025–2027) 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.
Source: FCC Broadband Data Collection, based on 839 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Spectrum Cable | 1,000 / 1,000 |
May also be available: T-Mobile.
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