NY Property Records
1620 Jefferson Ave
1620 Jefferson Ave
Islip · Suffolk County
210 · ResidentialSold $545,000 · Aug 2022
Owner of record
OwnerJohn Gienau &
Mailing address1620 JEFFERSON AVE · WEST ISLIP, NY, 11795
Assessment · 2025 roll
Land assessed$9,100
Total assessed$39,200
Est. annual tax$10,572 (2024, excl. special districts)
Lot
Size0.18 acres
Services & districts
School districtWest Islip (472809)
Recorded sales · 1
Deed$545,000Aug 26, 2022
seller GREGORY M. SLETER
buyer JOHN GIENAU
Liber 13186, page 90
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13186 / 90
SBL05003610002000730000
Print key361.-2-73
SWIS472889
Parcel ID47288905003610002000730000
Who owns 1620 Jefferson Ave?
1620 Jefferson Ave, Islip is owned by John Gienau & per the 2025 NYS assessment roll. It last sold for $545,000 in Aug 2022.
Nearby on Jefferson 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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