NY Property Records
521 Prospect Ave
521 Prospect Ave
Mamaroneck, Village · Westchester County · 10543
$1,323,000Full market value210 · Residential
Owner of record
OwnerWielgus, Martha
Mailing address180 E Prospect Ave · Mamaroneck, NY, 10543
Assessment · 2025 roll
Land assessed$217,000
Total assessed$1,323,000
Full market value$1,323,000
Building
StyleOld style
Year built1902
Living area2,793 sq ft
Bedrooms4
Full baths3
HeatHot wtr/stm
FuelGas
Lot
Size0.32 acres
Frontage × depth100 × 140 ft
Services & districts
WaterComm/public
SewerComm/public
UtilitiesGas & elec
School districtMamaroneck (553201)
Deed & identifiers
SBL00900902570000000000
Print key9-9-257
SWIS553203
Parcel ID55320300900902570000000000
Who owns 521 Prospect Ave?
521 Prospect Ave, Mamaroneck, Village is owned by Wielgus, Martha per the 2025 NYS assessment roll.
Nearby on Prospect Ave
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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