NY Property Records
143 4th Ave
143 4th Ave
Islip · Suffolk County
400 · CommercialSold $20,500,000 · Aug 2021
Owner of record
OwnerBay Shore Propco LLC
Mailing address45 RESEARCH WAY STE 100 · EAST SETAUKET, NY, 11733
Assessment · 2025 roll
Land assessed$750,000
Total assessed$7,070,000
Lot
Size10.27 acres
Services & districts
School districtBay Shore (472801)
Recorded sales · 2
Deedno price statedOct 27, 2023
seller BAY SHORE PROPCO LLC
buyer TOWN OF ISLIP
Liber 13234, page 268
Deed$20,500,000Aug 20, 2021
seller TOURO COLLEGE
buyer BAY SHORE PROPCO LLC
Liber 13141, page 977
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13234 / 268
SBL05003930003000210001
Print key393.-3-21.1
SWIS472889
Parcel ID47288905003930003000210001
Who owns 143 4th Ave?
143 4th Ave, Islip is owned by Bay Shore Propco LLC per the 2025 NYS assessment roll. It last sold for $20,500,000 in Aug 2021.
Nearby on 4th 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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