Westchester County and Mount Vernon City property record for 458 Union Ave, Mount Vernon, NY 10550
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $550,000 (Jun 2019) |
| Tax Bill | $17,187 (2026) |
| Deeds & Mortgages | Jun 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 550800 169.39-3128-20 |
| Primary APN | 550800 169.39-3128-20 |
|---|---|
| Alternative APNs |
|
| Lot Area | 5,227 sqft (0.12 acres) |
|---|
| Account Number | 089160 |
|---|---|
| Street Address | 458 UNION AVE |
| City | MOUNT VERNON |
| State | NY |
| Zip | 10550-4514 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 3128 |
| Legal Lot Number | 20.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 2700 |
458 Union Ave is owned and occupied by two individuals who bought it in June 2019.
Source: Westchester County and Mount Vernon City records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 458 UNION AVE, MOUNT VERNON, NY 10550-4514 |
| 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 | Jun 24, 2019 · Amount on File |
| Deed Sale | Jun 24, 2019 · Amount on File |
| Prior Sale | May 10, 2000 · Amount on File |
| Deed Document Number | 2019591543028 |
| Prior Transfer Date | Feb 7, 2012 |
| Prior Transfer Doc | 0520333249 |
| Record Updated | Oct 29, 2026 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Jun 24, 2019 |
| Property Address | 458 UNION AVE, MOUNT VERNON, NY 10550-4514 |
| Document Number | 0591543028 |
| Map Reference | MAP 144 |
| Instrument Date | Jun 4, 2019 |
| Instrument | 591543028 |
| Transaction Type | Transfer |
| Record Updated | May 6, 2022 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,200.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 458 UNION AVE, 458, MOUNT VERNON, NY 10550-4514 |
| Name | Verified Name |
|---|---|
| Address | 137 CRARY AVE, MOUNT VERNON, NY 10550-1781 |
| Document Number | 0591613068 |
|---|---|
| Date | Jun 24, 2019 |
| Instrument | 591613068 |
| Name | CROSSCOUNTRY MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2049 |
The 2026 property tax bill for 458 Union Ave was $17,187, up 109.9% 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 | $17,187.00 (+109.88%) | ||
| 2025 | $8,189.00 | $10,000 (-) Land $2,000 Building $8,000 | $555,555 (+6.67%) Land $111,111 Building $444,444 |
| 2024 | $10,000 (-) Land $2,000 Building $8,000 | $520,834 (-10.94%) Land $104,167 Building $416,667 | |
| 2023 | $10,000 Land $2,000 Building $8,000 | $584,795 Land $116,959 Building $467,836 |
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 458 Union Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 458 Union 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 966 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: Optimum, T-Mobile.
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