249 E Sidney Ave, Mount Vernon, NY 10550 Property Records

Westchester County and Mount Vernon City property record for 249 E Sidney Ave, Mount Vernon, NY 10550

Property Summary

Property Type	Duplex
Lot Size	0.11 acres (4,792 sqft)
Owner	Individual Name on File
Last Sale	$400,000 (Jul 2010)
Tax Bill	$12,180 (2025)
Deeds & Mortgages	Jan 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`550800 165.56-2057-35`

Property Details

APN / Parcel Number

Primary APN	`550800 165.56-2057-35`
Alternative APNs	`080016505620570350000000` `035550`

Exterior

Architectural Style	Duplex Single
Lot Area	4,792 sqft (0.11 acres)

Location & Zoning

Account Number	035550
Street Address	249 E SIDNEY AVE
City	MOUNT VERNON
State	NY
Zip	10550-1522
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Block	2057
Legal Lot Number	35.000
Jurisdiction	WESTCHESTER NY
Township / Civil Division	MOUNT VERNON
Census Block Group	1
Census Block	1003
Census Tract	4002

Owner

Source: Westchester County and Mount Vernon City records · APN 550800 165.56-2057-35

Assessment roll updated 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	249 E SIDNEY AVE, MOUNT VERNON, NY 10550-1522
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jul 14, 2010 · Amount on Record
Deed Sale	Jul 14, 2010 · Amount on Record
Deed Document Number	2010501763366
Record Updated	Jun 08, 2026

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Property Address	249 E SIDNEY AVE, MOUNT VERNON, NY 10550-1522
Transaction Type	Mortgage
Record Updated	Mar 29, 2021
Title Company	LANDSTAR TITLE AGENCY INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0610283015
Date	Jan 28, 2021
Instrument	610283015

Lender

Name	MUNICIPAL CU
Type	Credit Union
Address	NEW YORK, NY 10007

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Feb 01, 2041

Tax Assessment & Valuation

Source: Westchester County and Mount Vernon City records · Assessment roll updated 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	$12,180.00	$9,523 (-) Land $3,200 Building $6,323	$529,056 (+6.67%) Land $177,778 Building $351,278
2024	Homeowner's exemption	$9,523 (-) Land $3,200 Building $6,323	$495,990 (-10.94%) Land $166,667 Building $329,323
2023		$9,523 Land $3,200 Building $6,323	$556,901 Land $187,135 Building $369,766

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection 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

Based on FCC filings for 656 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System 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.