NY Property Records
16 William Ave
16 William Ave
Islip · Suffolk County
220 · Residential
Owner of record
OwnerMary C Marchese Family Trust
Mailing address16 WILLIAM AVE · ISLIP, NY, 11751
Assessment · 2025 roll
Land assessed$8,600
Total assessed$51,000
Est. annual tax$13,644 (2024, excl. special districts)
Lot
Size0.26 acres
Services & districts
School districtIslip (472802)
Recorded sales · 1
Deedno price statedJul 10, 2023
seller MARY C MARCHESE
buyer MARY C MARCHESE FAMILY TR
Liber 13225, page 898
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13225 / 898
SBL05003190003000830010
Print key319.-3-83.10
SWIS472889
Parcel ID47288905003190003000830010
Who owns 16 William Ave?
16 William Ave, Islip is owned by Mary C Marchese Family Trust per the 2025 NYS assessment roll.
Nearby on William 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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