× Home › Property records › Westchester County › Port Chester › W William St › 434 W William St434 W William StPort Chester · Westchester County · 10573 $585,200 Full market value 411 · Commercial
Owner of record
Owner Marro, Bartholomew T
Mailing address 434 W William St · Port Chester, NY, 10573
Assessment · 2025 roll
Land assessed $228,500
Total assessed $585,200
Full market value $585,200
Building
Use Walk-up apt
Year built 1920
Lot
Size 0.21 acres
Frontage × depth 84 × 107 ft
Lot sq ft 8,963
Services & districts
Water Comm/public
Sewer Comm/public
Utilities Gas & elec
School district Port Chester-Rye (554804)
Deed & identifiers
SBL 14103600010370000000
Print key 141.36-1-37
SWIS 554801
Parcel ID 55480114103600010370000000
Who owns 434 W William St? 434 W William St, Port Chester is owned by Marro, Bartholomew T 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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