NY Property Records
18 Willett Ave
18 Willett Ave
Islip · Suffolk County
210 · ResidentialSold $550,000 · Sep 2025
Owner of record
OwnerKeith J Gurnick
Mailing address18 WILLETT AVE · SAYVILLE, NY, 11782
Assessment · 2025 roll
Land assessed$7,200
Total assessed$28,800
Est. annual tax$8,348 (2024, excl. special districts)
Lot
Size0.12 acres
Services & districts
School districtSayville (472804)
Recorded sales · 1
Deed$550,000Sep 5, 2025
seller KEITH J GURNICK
buyer JOSEPH CACOPERDO
Liber 13310, page 24
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13310 / 24
SBL05003560001000320000
Print key356.-1-32
SWIS472889
Parcel ID47288905003560001000320000
Who owns 18 Willett Ave?
18 Willett Ave, Islip is owned by Keith J Gurnick per the 2025 NYS assessment roll. It last sold for $550,000 in Sep 2025.
Nearby on Willett 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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