951 E Boston Post Rd, Mamaroneck, NY 10543 Property Records

Westchester County and Rye Town property record for 951 E Boston Post Rd, Mamaroneck, NY 10543

Property Summary

Property TypeOffice Building
Details4,816 sqft · built 1983
Lot Size0.386 acres (16,821 sqft)
OwnerCompany Name on Record
Last Sale$650,000 (Jan 2012)
Tax Bill$27,099 (2026)
Flood ZoneZone X (minimal risk)
APN554803 154.44-1-3

Property Details

APN / Parcel Number

Primary APN554803 154.44-1-3
Alternative APNs
  • 480315404400010030000000
  • 00006902000

Interior

Units4 Units
Stories2 Stories
Building Area4,816 sqft Gross Area
Basement Area2,720 sqft
Unfinished Basement2,720 sqft
Fire SprinklersFire Sprinklers

Exterior

Year BuiltBuilt 1983
Effective Year BuiltEffective 1989
Lot Area16,821 sqft (0.386 acres)
PorchSlab

Utilities, Heating & Cooling

Cooling SystemCentral
Heating FuelOil
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number00006902000
Street Address951 E BOSTON POST RD
CityMAMARONECK
StateNY
Zip10543-4142
Property CategoryCommercial
Property TypeCommercial > Office > Office Building
Local Zoning CodeC-1 COMM
Legal SubdivisionTHEODORE VAN AMRINGE
Legal Block1
Legal Lot Number3.000
JurisdictionWESTCHESTER NY
Township / Civil DivisionRYE
Census Block Group3
Census Block3014
Census Tract7402

Owner

Source: Westchester County and Rye Town records, as of October 21, 2026

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

Owner of RecordCompany Name on Record
Mailing Address951 E BOSTON POST RD, MAMARONECK, NY 10543-4142
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJan 20, 2012 · Amount on Record
Deed SaleJan 20, 2012 · Amount on Record
Deed Document Number2012520043375
Prior Transfer DateApr 17, 2008
Prior Transfer Doc0481700298
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

Source: Westchester County and Rye Town assessment roll, as of May 14, 2026

Property Jurisdictions

TypeName
StateNew York
CountyWestchester County
County SubdivisionRye Town
MunicipalityMamaroneck Village
Unified School DistrictRye Neck Union Free School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$27,099.00 (+47.38%)
2025$18,387.00$1,028,400 (-) Land $745,600 Building $282,800$1,028,400 (-) Land $745,600 Building $282,800
2024$1,028,400 (-) Land $745,600 Building $282,800$1,028,400 (-) Land $745,600 Building $282,800
2023$1,028,400 Land $745,600 Building $282,800$1,028,400 Land $745,600 Building $282,800

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 49 individual policies
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies88 units insured
incl. 39 condo units
Nearby Flood Claims219 (1978–2023)
Claims Outside the SFHA154 of 219
Most Recent ClaimSep 2023 · Severe Storm And Flooding
Claims by Event
  • Hurricane Sandy, Oct 2012 · 36 claims
  • Hurricane Irene, Aug 2011 · 27 claims
  • Coastal Storm, High Tides, Heavy Rain, & Flooding, Dec 1992 · 30 claims

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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 98% of the US · lower than 97.9% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureDirect
burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemWESTCHESTER JOINT WATER WORKS
serves 59,629 people · EPA ID NY5903435
Water SourceSurface water
Last State InspectionMar 2025
Lead3 ppb (2026–2028)
action level 15 ppb

Violations Reported to EPA

Water QualityFailure to filter
currently in violation since Jun 1993
Haloacetic acids
resolved · Jul 2019
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 499 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber · Fixed Wireless in parts of the area
980 / 880

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