Westchester County and Mount Vernon City property record for 321 Union Ave, Mount Vernon, NY 10550
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $499,000 (Jan 2022) |
| Tax Bill | $16,379 (2025) |
| Deeds & Mortgages | Jan 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 550800 169.23-3149-19 |
| Primary APN | 550800 169.23-3149-19 |
|---|---|
| Alternative APNs |
|
| Lot Area | 6,098 sqft (0.14 acres) |
|---|
| Account Number | 091560 |
|---|---|
| Street Address | 321 UNION AVE |
| City | MOUNT VERNON |
| State | NY |
| Zip | 10550-4545 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 3149 |
| Legal Lot Number | 19.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 2700 |
Source: Westchester County and Mount Vernon City records, as of May 14, 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 Record |
|---|---|
| Mailing Address | 321 UNION AVE, MOUNT VERNON, NY 10550-4545 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 14, 2022 · Amount on Record |
| Deed Sale | Jan 14, 2022 · Amount on Record |
| Deed Document Number | 20223624 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Jan 14, 2022 |
| Property Address | 321 UNION AVE, MOUNT VERNON, NY 10550-4545 |
| Document Number | 0620043624 |
| Instrument Date | Jan 10, 2022 |
| Instrument | 620043624 |
| Transaction Type | Transfer |
| Record Updated | Jan 27, 2022 |
| Title Company | RECORD AND RETURN TITLE AGENCY, RECORD & RETURN TITLE AGENCY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,996.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 321 UNION AVE, 321, MOUNT VERNON, NY 10550-4545 |
| Name | Verified Name |
|---|---|
| Address | 537 TIMPSON PL # 22, 22, BRONX, NY 10455-5017 |
| Document Number | 0620133263 |
|---|---|
| Date | Jan 14, 2022 |
| Instrument | 620133263 |
| Name | MORTGAGE WORLD BANKERS |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2052 |
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 |
|---|---|---|---|
| 2025 | $16,379.00 | $7,900 (-) Land $2,000 Building $5,900 | $438,889 (+6.67%) Land $111,111 Building $327,778 |
| 2024 | $7,900 (-) Land $2,000 Building $5,900 | $411,459 (-10.94%) Land $104,167 Building $307,292 | |
| 2023 | $7,900 Land $2,000 Building $5,900 | $461,988 Land $116,959 Building $345,029 |
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.
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.
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 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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