NY Property Records
421 Cortlandt Ave
421 Cortlandt Ave
Mamaroneck, Village · Westchester County · 10543
$1,171,000Full market value210 · ResidentialSold $885,000 · Jun 2017
Owner of record
OwnerPorter, Jonanthan
AlsoSantoro -Porter
Mailing address421 Cortlandt Ave · Mamaroneck, NY, 10543
Assessment · 2025 roll
Land assessed$214,000
Total assessed$1,171,000
Full market value$1,171,000
Building
StyleOld style
Year built1902
Living area2,698 sq ft
Bedrooms3
Full baths2
HeatHot wtr/stm
FuelGas
Lot
Size0.29 acres
Frontage × depth100 × 125 ft
Services & districts
WaterComm/public
SewerComm/public
UtilitiesGas & elec
School districtMamaroneck (553201)
Recorded sales · 1
Deed$885,000Jun 15, 2017
seller PHILIPPE A BONNET
buyer JONATHAN PORTER
Liber 57173, page 3652
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page57173 / 3652
SBL00901502380000000000
Print key9-15-238
SWIS553203
Parcel ID55320300901502380000000000
Who owns 421 Cortlandt Ave?
421 Cortlandt Ave, Mamaroneck, Village is owned by Porter, Jonanthan per the 2025 NYS assessment roll. It last sold for $885,000 in Jun 2017.
Nearby on Cortlandt 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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