331 Union Ave, Mount Vernon, NY 10550 Property Records

Westchester County and Mount Vernon City property record for 331 Union Ave, Mount Vernon, NY 10550

Property Summary

Property Type	Triplex
Lot Size	0.08 acres (3,485 sqft)
Owner	Individual Name on File
Tax Bill	$11,465 (2025)
Flood Zone	Zone X (minimal risk)
APN	`550800 169.23-3149-15`

Property Details

APN / Parcel Number

Primary APN	`550800 169.23-3149-15`
Alternative APNs	`080016902331490150000000` `091520`

Exterior

Architectural Style	Triplex
Lot Area	3,485 sqft (0.08 acres)

Location & Zoning

Account Number	091520
Street Address	331 UNION AVE
City	MOUNT VERNON
State	NY
Zip	10550-4545
Property Category	Residential
Property Type	Residential > Multi-Unit > Triplex
Legal Block	3149
Legal Lot Number	15.000
Jurisdiction	WESTCHESTER NY
Township / Civil Division	MOUNT VERNON
Census Block Group	1
Census Block	1001
Census Tract	2700

Owner

Source: Westchester County and Mount Vernon City assessment roll, APN 550800 169.23-3149-15, as of May 14, 2026 · Last verified May 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	331 UNION AVE, MOUNT VERNON, NY 10550-4545
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Jun 08, 2026

Tax Assessment & Valuation

Source: Westchester County and Mount Vernon City assessment roll as of May 14, 2026 · Last verified May 2026

Property Jurisdictions

Type	Name
State	New York
County	Westchester County
Municipality	Mount Vernon City
Unified School District	Mount Vernon School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$11,465.00	$7,600 (-) Land $1,500 Building $6,100	$422,222 (+6.67%) Land $83,333 Building $338,889
2024	Homeowner's exemption	$7,600 (-) Land $1,500 Building $6,100	$395,833 (-10.94%) Land $78,125 Building $317,708
2023		$7,600 Land $1,500 Building $6,100	$444,444 Land $87,719 Building $356,725

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Westchester County (36119C), as of September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, 839 locations within half a mile, as of December 31, 2025 · Last verified October 2026

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 USA.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system NY5903441, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	MOUNT VERNON WATER DEPARTMENT serves 73,893 people
Water Source	Purchased surface water from several systems
Last State Inspection	Jul 2025
Lead	7 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.