143 E Prospect Ave, Mount Vernon, NY 10550 Property Records

Westchester County and Mount Vernon City property record for 143 E Prospect Ave, Mount Vernon, NY 10550

Property Summary

Property Type	Apartments (5+ Units)
Lot Size	0.28 acres (12,197 sqft)
Owner	Company Name on File
Last Sale	$495,000 (Mar 2015)
Tax Bill	$65,519 (2025)
Flood Zone	Zone X (minimal risk)
APN	`550800 165.63-1147-10`

Property Details

APN / Parcel Number

Primary APN	`550800 165.63-1147-10`
Alternative APNs	`080016506311470100000000` `026130`

Exterior

Lot Area	12,197 sqft (0.28 acres)

Location & Zoning

Account Number	026130
Street Address	143 E PROSPECT AVE
City	MOUNT VERNON
State	NY
Zip	10550
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Legal Block	1147
Legal Lot Number	10.000
Jurisdiction	WESTCHESTER NY
Township / Civil Division	MOUNT VERNON
Census Block Group	1
Census Block	1002
Census Tract	4001

Owner

Source: Westchester County and Mount Vernon City assessment roll, APN 550800 165.63-1147-10, 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	Company Name on File
Mailing Address	11 HUNTER DR, EASTCHESTER, NY 10709-5205
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Mar 26, 2015 · Amount on Record
Deed Sale	Mar 26, 2015 · Amount on Record
Prior Sale	May 18, 2004 · Amount on Record
Deed Document Number	2015550263021
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, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$65,519.00	$18,200 (-) Land $6,000 Building $12,200	$1,011,111 (+6.67%) Land $333,333 Building $677,778
2024		$18,200 (-) Land $6,000 Building $12,200	$947,917 (-10.94%) Land $312,500 Building $635,417
2023		$18,200 Land $6,000 Building $12,200	$1,064,327 Land $350,877 Building $713,450

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, 656 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 · Fiber in parts of the area	1,000 / 1,000
T-Mobile USA Fixed Wireless	100 / 20

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.