NY Property Records
18 William Ave
18 William Ave
Islip · Suffolk County
210 · ResidentialSold $313,000 · May 2021
Owner of record
OwnerEthan Crespo
Mailing address18 WILLIAM AVE · CENTRAL ISLIP, NY, 11722
Assessment · 2025 roll
Land assessed$6,100
Total assessed$28,400
Est. annual tax$9,404 (2024, excl. special districts)
Lot
Size0.17 acres
Services & districts
School districtCentral Islip (472813)
Recorded sales · 1
Deed$313,000May 24, 2021
seller RYAN FARLEY
buyer ETHAN CRESPO
Liber 13113, page 308
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13113 / 308
SBL05000980002000110000
Print key98.-2-11
SWIS472889
Parcel ID47288905000980002000110000
Who owns 18 William Ave?
18 William Ave, Islip is owned by Ethan Crespo per the 2025 NYS assessment roll. It last sold for $313,000 in May 2021.
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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