× Home › Property records › Westchester County › Mamaroneck, Village › Walnut St › 521 Walnut St521 Walnut StMamaroneck, Village · Westchester County · 10543 $945,400 Full market value 210 · Residential OpenValue $1,240,617 ▾
Owner of record
Owner Paterno Joan
Mailing address 521 Walnut St · Mamaroneck, NY, 10543
Assessment · 2025 roll
Land assessed $381,600
Total assessed $945,400
Full market value $945,400
Building
Style Colonial
Year built 1920
Living area 2,224 sq ft
Bedrooms 3
Full baths 2
Heat Hot wtr/stm
Fuel Gas
Lot
Size 0.15 acres
Frontage × depth 50 × 125 ft
Lot sq ft 6,406
Services & districts
Water Comm/public
Sewer Comm/public
Utilities Gas & elec
School district Rye Neck (554801)
Deed & identifiers
SBL 15404200020430000000
Print key 154.42-2-43
SWIS 554803
Parcel ID 55480315404200020430000000
Who owns 521 Walnut St? 521 Walnut St, Mamaroneck, Village is owned by Paterno Joan per the 2025 NYS assessment roll.
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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.
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