Westchester County and Mount Vernon City property record for 1 S 4th Ave, Mount Vernon, NY 10550
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Lot Size | 0.04 acres (1,742 sqft) |
| Owner | Company Name on File |
| Last Sale | $800,000 (Oct 2007) |
| Tax Bill | $27,499 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 550800 165.70-3111-1 |
| Primary APN | 550800 165.70-3111-1 |
|---|---|
| Alternative APNs |
|
| Lot Area | 1,742 sqft (0.04 acres) |
|---|
| Account Number | 083540 |
|---|---|
| Street Address | 1 S 4TH AVE |
| City | MOUNT VERNON |
| State | NY |
| Zip | 10550-3104 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Legal Subdivision | VILLAGE OF MOUNT VERNON |
| Legal Block | 3111 |
| Legal Lot Number | 1.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 3100 |
1 S 4th Ave, a commercial property, is owned by a company that bought it in October 2007.
Source: Westchester County and Mount Vernon City records, as of October 21, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 6 COLONY ROW, CHAPPAQUA, NY 10514-1803 |
| 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 |
|---|---|
| Last Sale | Oct 25, 2007 · Amount on File |
| Deed Sale | Oct 25, 2007 · Amount on File |
| Prior Sale | Apr 28, 2005 · Amount on File |
| Deed Document Number | 2007472920259 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 1 S 4th Ave was $27,499.
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 | $27,499.00 | ||
| 2025 | $16,000 (-) Land $3,700 Building $12,300 | $888,889 (+6.67%) Land $205,556 Building $683,333 | |
| 2024 | $16,000 (-) Land $3,700 Building $12,300 | $833,333 (-10.94%) Land $192,708 Building $640,625 | |
| 2023 | $16,000 Land $3,700 Building $12,300 | $935,672 Land $216,374 Building $719,298 |
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 1 S 4th Ave in Zone X, an area of minimal flood risk, though there have been 4 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 Claims | 4 (1983–1984) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Nov 1984 · river or lake flooding |
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 1 S 4th 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 874 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 |
May also be available: T-Mobile.
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