NY Property Records
17 W William St
17 W William St
Islip · Suffolk County
210 · Residential
Owner of record
OwnerOlga Elizabeth Castillo
Mailing address17 W WILLIAM ST · BAY SHORE, NY, 11706
Assessment · 2025 roll
Land assessed$7,800
Total assessed$35,200
Est. annual tax$10,583 (2024, excl. special districts)
Lot
Size0.27 acres
Services & districts
School districtBay Shore (472801)
Deed & identifiers
Deed book / page12481 / 691
SBL05003410002000860000
Print key341.-2-86
SWIS472889
Parcel ID47288905003410002000860000
Who owns 17 W William St?
17 W William St, Islip is owned by Olga Elizabeth Castillo per the 2025 NYS assessment roll.
Nearby on W William St
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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