Westchester County and Mount Vernon City property record for 303 E Prospect Ave, Mount Vernon, NY 10553
| Property Type | Duplex |
|---|---|
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $320,000 (Sep 2001) |
| Tax Bill | $20,992 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 550800 165.64-2075-7 |
| Primary APN | 550800 165.64-2075-7 |
|---|---|
| Alternative APNs |
|
| Architectural Style | Duplex Single |
|---|---|
| Lot Area | 5,227 sqft (0.12 acres) |
| Account Number | 038680 |
|---|---|
| Street Address | 303 E PROSPECT AVE |
| City | MOUNT VERNON |
| State | NY |
| Zip | 10553-1065 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Subdivision | MAP OF THE VILLAGE OF MOUNT VERNON |
| Legal Block | 2075 |
| Legal Lot Number | 7.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 3 |
| Census Block | 3023 |
| Census Tract | 4100 |
303 E Prospect Ave, a duplex, is owned and occupied by two individuals who bought it in September 2001.
Source: Westchester County and Mount Vernon City records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 303 E PROSPECT AVE, MOUNT VERNON, NY 10553-1065 |
| 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 | Sep 5, 2001 · Amount on File |
| Deed Sale | Sep 5, 2001 · Amount on File |
| Prior Sale | Dec 19, 2000 · Amount on File |
| Deed Document Number | 2001412330027 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 303 E Prospect Ave was $20,992 with a homeowner's exemption, down 88.3% 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 | $20,992.00 (-88.35%) Homeowner's exemption | ||
| 2025 | $180,178.00 | $13,000 (-) Land $3,000 Building $10,000 | $722,223 (+6.67%) Land $166,667 Building $555,556 |
| 2024 | Homeowner's exemption | $13,000 (-) Land $3,000 Building $10,000 | $677,083 (-10.94%) Land $156,250 Building $520,833 |
| 2023 | $13,000 Land $3,000 Building $10,000 | $760,234 Land $175,439 Building $584,795 |
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 303 E Prospect Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2018.
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 | 3 in force |
| Nearby Flood Claims | 2 (2018–2022) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jun 2022 · 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.
The area around 303 E Prospect Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 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 656 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 · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
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