NY Property Records

4 William St
Islip · Suffolk County

210 · Residential
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Owner of record
OwnerOmar Mardones
Mailing address4 WILLIAM ST · CENTRAL ISLIP, NY, 11722
Assessment · 2025 roll
Land assessed$7,500
Total assessed$35,400
Est. annual tax$11,721 (2024, excl. special districts)
Lot
Size0.31 acres
Services & districts
School districtCentral Islip (472813)
Deed & identifiers
Deed book / page12377 / 188
SBL05000990002000140000
Print key99.-2-14
SWIS472889
Parcel ID47288905000990002000140000

Who owns 4 William St?

4 William St, Islip is owned by Omar Mardones per the 2025 NYS assessment roll.
Nearby on William St
5 William St · 3 William St · 5 William St · 2 William St · 2 William St · 6 William St · 1 William St · 1a William St · 7 William St · 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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